Verified Nov 1, 2026 · Source: NANPA CO Code Assignment Records

Area code 301 prefixes

784 of the 786 possible NXX blocks are assigned in area code 301 (99.7% of capacity), spread across 64 rate centers and 31 holders. The largest holders are VERIZON MARYLAND, INC. (463 blocks, 59.1%), CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD (51 blocks, 6.5%), NEW CINGULAR WIRELESS PCS, LLC - DC (47 blocks, 6.0%). Grouped by brand, Verizon accounts for 557 blocks; brand-attributable holders cover 97% of the code, and the rest are CLECs, VoIP wholesalers and regional carriers that trade under their own names. The assignment records here run from 2002-01-09 to 2025-07-01, with 10 blocks handed out in 2002 alone. 397 blocks (51%) are in thousands-block pooling, meaning the block is shared between carriers in 1,000-number lots rather than held whole – which is why a single NXX can serve several carriers at once. 22 were growth assignments – additional blocks to a carrier that had already filled its earlier ones.

784 assigned blocks of 786

64 rate centers

31 holders of record

51% in thousands-block pooling

Largest holders in 301

Holder of record, as NANPA names it	Brand	Blocks	Share
VERIZON MARYLAND, INC.	Verizon	463	59.1%
CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD	Verizon	51	6.5%
NEW CINGULAR WIRELESS PCS, LLC - DC	AT&T	47	6%
MCIMETRO ACCESS TRANSMISSION SERVICES LLC	Verizon	40	5.1%
OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC	T-Mobile	31	4%
TELEPORT COMMUNICATIONS AMERICA, LLC - DC	AT&T	31	4%
LEVEL 3 COMMUNICATIONS, LLC - MD	Lumen	15	1.9%
METROPCS, INC.	T-Mobile	14	1.8%
COMCAST IP PHONE, LLC	Comcast	12	1.5%
BANDWIDTH.COM CLEC, LLC - MD	Bandwidth	11	1.4%
SPOK, INC.	Spok	9	1.1%
PAETEC ITEL, LLC	Windstream	9	1.1%

Names are printed as they appear in the assignment records, which is the legal entity rather than the brand. Holding a block is not the same as serving the numbers in it: portability moves numbers between carriers and pooling splits a block between several.

Rate centers with their own page

Rate centers where at least three blocks are assigned, excluding the numbered metro zone codes. The remainder are in the full table below.

FREDERICK 37 GAITHERSBG 33 WALDORF 25 HAGERSTOWN 21 CUMBERLAND 14 LXTNPKGRML 11 LEONARDTN 9 MYERSVILLE 9 OAKLAND 8 INDIANHEAD 6 BRANDYWINE 4 MECHANCSVL 3 LA PLATA 3 KEEDYSVL 3

All 784 assigned blocks

One row per NXX. “Pooled” means carriers draw 1,000-number lots from the block rather than holding all 10,000, so a pooled prefix can belong to several carriers at once. “Not in service” means assigned but not yet open for calls – a caller ID from one of those is necessarily spoofed. The holder column gives the brand where the legal entity maps to one; the full legal names are in the holders table above, exactly as NANPA records them.

Prefix	Holder of record	Rate center	Assigned	Pooled	In service
301-200	Bandwidth	INDIANHEAD	2011-02-24	yes	yes
301-201	AT&T	WSNGTNZN10	2022-11-07	yes	yes
301-202	AT&T	WSHNGTNZN2	2008-12-19	yes	yes
301-203	Verizon	WSHNGTNZN6	–	–	yes
301-204	AT&T	WSHNGTNZN2	–	yes	yes
301-205	Verizon	WSNG238Z14	–	yes	yes
301-206	Verizon	WSNG236Z13	–	–	yes
301-207	Spok	WSNG236Z13	–	–	yes
301-208	Verizon	GAITHERSBG	–	–	yes
301-209	Verizon	WSHNGTNZN4	–	–	yes
301-210	Verizon	LAUREL236	–	–	yes
301-212	Verizon	WSNGTNZN10	–	yes	yes
301-213	T-Mobile	WSHNGTNZN3	–	yes	yes
301-214	Verizon	WSHNGTNZN2	–	–	yes
301-215	Verizon	WSHNGTNZN2	–	yes	yes
301-216	Verizon	GAITHERSBG	–	–	yes
301-217	Verizon	WSNGTNZN10	–	–	yes
301-218	Verizon	WSNG236Z14	–	–	yes
301-219	AT&T	WSHNGTNZN2	–	–	yes
301-220	Verizon	WSNG236Z13	–	yes	yes
301-221	AT&T	WSHNGTNZN2	–	–	yes
301-222	Windstream	WSHNGTNZN2	–	yes	yes
301-223	Verizon	WILLIAMSPT	–	yes	yes
301-224	Spok	WSHNGTNZN2	–	–	yes
301-225	AT&T	WSNG236Z14	2009-05-21	yes	yes
301-226	Verizon	WSHNGTNZN4	–	–	yes
301-227	Verizon	WSHNGTNZN2	–	–	yes
301-228	Verizon	FREDERICK	–	yes	yes
301-229	Verizon	WSHNGTNZN2	–	–	yes
301-230	Verizon	WSNGTNZN11	–	–	yes
301-231	Verizon	WSNGTNZN11	–	yes	yes
301-232	Verizon	ASHTON236	–	yes	yes
301-233	Verizon	WSHNGTNZN3	–	–	yes
301-234	Verizon	WSNGTNZN16	–	yes	yes
301-235	Verizon	WSNGTNZN16	–	yes	yes
301-236	Verizon	WSNGTNZN12	–	–	yes
301-237	T-Mobile	WSHNGTNZN3	–	yes	yes
301-238	Verizon	WSNGTNZN16	–	yes	yes
301-239	Verizon	WSHNGTNZN4	–	–	yes
301-240	Verizon	WSNGTNZN10	–	yes	yes
301-241	Verizon	HIGHFIELD	–	yes	yes
301-242	Verizon	BRANDYWINE	–	yes	yes
301-243	Verizon	WSHNGTNZN2	2006-07-20	yes	yes
301-244	Windstream	WSHNGTNZN3	–	yes	yes
301-245	Verizon	BITTINGER	–	yes	yes
301-246	Verizon	NANJEMOY	–	yes	yes
301-247	AT&T	LEONARDTN	–	–	yes
301-248	Verizon	WSHNGTNZN6	–	–	yes
301-249	Verizon	WSNG236Z14	–	–	yes
301-250	Verizon	GAITHERSBG	–	yes	yes
301-251	Verizon	WSNGTNZN10	–	–	yes
301-252	T-Mobile	GAITHERSBG	–	yes	yes
301-253	Verizon	DAMASCS236	–	–	yes
301-254	T-Mobile	WSHNGTNZN3	–	yes	yes
301-255	Verizon	WSNGTNZN11	–	yes	yes
301-256	Verizon	LAUREL236	–	yes	yes
301-257	T-Mobile	WSHNGTNZN3	–	yes	yes
301-258	Verizon	WSNGTNZN10	–	–	yes
301-259	Verizon	TOMPKINSVL	–	yes	yes
301-260	Verizon	ASHTON236	–	yes	yes
301-261	Verizon	WSNG238Z14	–	–	yes
301-262	Verizon	WSNG236Z14	–	–	yes
301-263	Verizon	WSHNGTNZN2	–	yes	yes
301-264	Verizon	MT SAVAGE	–	yes	yes
301-265	Verizon	WSHNGTNZN6	–	yes	yes
301-266	AT&T	WALDORF	–	–	yes
301-267	T-Mobile	WSHNGTNZN3	2011-10-04	yes	yes
301-268	UScellular	CUMBERLAND	–	yes	yes
301-269	Verizon	WSHNGTNZN2	2014-11-11	yes	yes
301-270	Verizon	WSHNGTNZN3	–	–	yes
301-271	Verizon	THURMONT	–	yes	yes
301-272	Verizon	WSHNGTNZN2	–	yes	yes
301-273	Verizon	WSHNGTNZN3	–	yes	yes
301-274	Verizon	HUGHESVL	–	yes	yes
301-275	AT&T	WSHNGTNZN2	–	yes	yes
301-276	Verizon	WSHNGTNZN4	–	yes	yes
301-277	Verizon	WSHNGTNZN4	–	–	yes
301-278	Verizon	WSHNGTNZN5	–	yes	yes
301-279	Verizon	WSNGTNZN10	–	–	yes
301-280	Verizon	WSHNGTNZN2	–	–	yes
301-281	Verizon	WSHNGTNZN6	–	yes	yes
301-282	Verizon	WSNGTNZN12	–	–	yes
301-283	Verizon	WSHNGTNZN6	–	yes	yes
301-284	Verizon	WSNGTNZN10	–	yes	yes
301-285	Verizon	WSHNGTNZN3	–	–	yes
301-286	Verizon	WSNG236Z13	–	–	yes
301-287	Verizon	WSNGTNZN11	–	yes	yes
301-288	Verizon	WSNGTNZN12	–	yes	yes
301-289	Verizon	WSNG236Z13	–	yes	yes
301-290	Verizon	MECHANCSVL	–	yes	yes
301-291	Verizon	WSNG236Z14	–	yes	yes
301-292	Verizon	WSHNGTNZN6	–	–	yes
301-293	Verizon	MYERSVILLE	–	–	yes
301-294	Verizon	WSNGTNZN10	–	–	yes
301-295	Verizon	WSHNGTNZN2	–	–	yes
301-296	Verizon	WSNGTNZN10	–	yes	yes
301-297	Verizon	WSNGTNZN16	–	yes	yes
301-298	Verizon	WSNG236Z15	–	yes	yes
301-299	Verizon	WSNGTNZN10	–	–	yes
301-300	Verizon	WSHNGTNZN2	2007-03-30	yes	yes
301-301	Onvoy	GAITHERSBG	2022-08-30	yes	yes
301-302	T-Mobile	HAGERSTOWN	2004-10-05	yes	yes
301-303	Spok	WSNG236Z13	–	–	yes
301-304	Comcast	WALKERSVL	2007-03-06	yes	yes
301-305	T-Mobile	FREDERICK	–	yes	yes
301-306	Verizon	WSHNGTNZN4	–	–	yes
301-307	Verizon	WSNG238Z13	–	yes	yes
301-308	Spok	WSNG236Z13	–	–	yes
301-309	Verizon	WSNGTNZN10	–	yes	yes
301-310	Verizon	LAUREL238	–	yes	yes
301-312	AT&T	WSHNGTNZN2	–	yes	yes
301-313	Verizon	WSNG236Z13	–	yes	yes
301-314	Windstream	WSHNGTNZN4	–	–	yes
301-315	Verizon	WSNGTNZN10	–	–	yes
301-316	Verizon	WSHNGTNZN5	–	yes	yes
301-317	Verizon	LAUREL236	–	–	yes
301-318	AT&T	WSHNGTNZN2	–	yes	yes
301-319	Verizon	WSHNGTNZN2	–	–	yes
301-320	Verizon	WSHNGTNZN2	–	–	yes
301-321	Onvoy	WSNGTNZN11	–	yes	yes
301-322	Verizon	WSHNGTNZN4	–	–	yes
301-323	Lumen	LAUREL236	–	yes	yes
301-324	Verizon	WSHNGTNZN5	–	–	yes
301-325	Verizon	WSHNGTNZN3	–	–	yes
301-326	T-Mobile	WSHNGTNZN3	–	yes	yes
301-327	Comcast	WSNG238Z15	2006-03-09	yes	yes
301-328	Comcast	WSHNGTNZN3	2006-06-21	yes	yes
301-329	Onvoy	ASHTON238	–	yes	yes
301-330	Verizon	GAITHERSBG	–	–	yes
301-331	AT&T	HAGERSTOWN	–	yes	yes
301-332	AT&T	WSHNGTNZN3	–	–	yes
301-333	Verizon	WSHNGTNZN5	–	–	yes
301-334	Verizon	OAKLAND	–	–	yes
301-335	AT&T	WSHNGTNZN2	–	yes	yes
301-336	Verizon	WSHNGTNZN5	–	–	yes
301-337	Verizon	GAITHERSBG	–	yes	yes
301-338	IDT AMERICA, CORP. - MD	CUMBERLAND	2006-01-31	yes	yes
301-339	Windstream	WSNGTNZN10	–	yes	yes
301-340	Verizon	WSNGTNZN10	–	–	yes
301-341	Verizon	WSHNGTNZN4	–	–	yes
301-342	Verizon	LXTNPKGRML	–	–	yes
301-343	T-Mobile	WSHNGTNZN5	–	yes	yes
301-344	Verizon	WSNG236Z13	–	–	yes
301-345	Verizon	WSNG236Z13	–	–	yes
301-346	AT&T	WSHNGTNZN3	–	–	yes
301-347	Verizon	WSHNGTNZN2	–	yes	yes
301-348	Verizon	WSNGTNZN11	–	yes	yes
301-349	Verizon	POOLESVL	–	yes	yes
301-350	Verizon	WSHNGTNZN5	–	–	yes
301-351	Verizon	WSHNGTNZN3	–	–	yes
301-352	Verizon	WSNG236Z14	–	–	yes
301-353	Verizon	WSNGTNZN10	–	–	yes
301-354	AT&T	WSNGTNZN10	–	yes	yes
301-355	Verizon	GAITHERSBG	2005-12-08	yes	yes
301-356	VDL, INC. DBA GLOBAL TELECOM BROKERS - MD	LAUREL236	–	yes	yes
301-357	Verizon	WSHNGTNZN3	2006-10-12	yes	yes
301-358	Lumen	WSNG236Z15	–	yes	yes
301-359	Verizon	WESTERNPT	–	yes	yes
301-360	Verizon	FREDERICK	–	yes	yes
301-361	Lumen	WSHNGTNZN4	–	–	yes
301-362	Verizon	LAUREL236	–	–	yes
301-363	Lumen	DAMASCS240	2006-08-16	yes	yes
301-364	Verizon	WSHNGTNZN4	–	yes	yes
301-365	Verizon	WSHNGTNZN2	–	–	yes
301-366	T-Mobile	GAITHERSBG	–	yes	yes
301-367	Verizon	WSHNGTNZN3	–	–	yes
301-368	Verizon	DAMASCS236	–	yes	yes
301-369	Verizon	WSNG236Z13	–	–	yes
301-370	T-Mobile	GAITHERSBG	–	yes	yes
301-371	Verizon	MIDDLETOWN	–	yes	yes
301-372	Verizon	WSNGTNZN16	–	yes	yes
301-373	Verizon	LEONARDTN	–	yes	yes
301-374	Verizon	WALDORF	–	yes	yes
301-375	Verizon	INDIANHEAD	–	yes	yes
301-376	Verizon	LAUREL236	–	–	yes
301-377	Comcast	LAUREL236	–	yes	yes
301-378	Comcast	FREDERICK	2007-02-20	yes	yes
301-379	T-Mobile	WSHNGTNZN3	–	yes	yes
301-380	Verizon	WSHNGTNZN2	–	–	yes
301-381	Onvoy	WSHNGTNZN2	2022-07-15	yes	yes
301-382	Verizon	WSNGTNZN11	–	–	yes
301-383	Comcast	WSNG236Z14	–	yes	yes
301-384	Verizon	WSNGTNZN12	–	–	yes
301-385	AT&T	WSHNGTNZN2	–	–	yes
301-386	Verizon	WSHNGTNZN4	–	–	yes
301-387	Verizon	OAKLAND	–	yes	yes
301-388	Verizon	WSNGTNZN12	–	yes	yes
301-389	Lumen	WSNG236Z13	–	yes	yes
301-390	Verizon	WSNG236Z14	–	–	yes
301-391	Verizon	DAMASCS236	–	yes	yes
301-392	Verizon	LA PLATA	–	yes	yes
301-393	Verizon	HAGERSTOWN	–	yes	yes
301-394	Verizon	WSHNGTNZN3	–	–	yes
301-395	Verizon	LAUREL238	–	yes	yes
301-396	Verizon	WALDORF	–	yes	yes
301-397	Verizon	WSNG236Z13	–	yes	yes
301-398	Verizon	WSNGTNZN10	2003-10-09	yes	yes
301-399	T-Mobile	WALDORF	–	yes	yes
301-400	Verizon	WSHNGTNZN2	2010-03-29	yes	yes
301-401	AT&T	FREDERICK	–	–	yes
301-402	Verizon	WSHNGTNZN2	–	–	yes
301-403	Verizon	WSHNGTNZN4	–	–	yes
301-404	T-Mobile	WSHNGTNZN3	–	yes	yes
301-405	Windstream	WSHNGTNZN4	–	–	yes
301-406	Spok	WSHNGTNZN2	–	–	yes
301-407	Verizon	GAITHERSBG	–	yes	yes
301-408	Verizon	WSHNGTNZN3	–	yes	yes
301-409	Charter	WSHNGTNZN2	–	yes	yes
301-410	Charter	WSHNGTNZN6	2022-05-05	yes	yes
301-412	AT&T	WSHNGTNZN2	–	–	yes
301-413	Verizon	WSNGTNZN11	–	–	yes
301-414	Verizon	DAMASCS236	–	yes	yes
301-415	Verizon	WSHNGTNZN3	–	–	yes
301-416	Verizon	MYERSVILLE	–	yes	yes
301-417	Verizon	WSNGTNZN10	–	yes	yes
301-418	Verizon	FREDERICK	2002-11-20	yes	yes
301-419	Verizon	WSNG236Z13	–	–	yes
301-420	Verizon	WSHNGTNZN5	–	–	yes
301-421	Verizon	ASHTON236	–	–	yes
301-422	Verizon	WSHNGTNZN4	–	–	yes
301-423	Verizon	WSHNGTNZN5	–	–	yes
301-424	Verizon	WSNGTNZN10	–	–	yes
301-425	Verizon	WSNG236Z13	–	–	yes
301-426	Verizon	WSNG236Z13	–	yes	yes
301-427	Verizon	WSHNGTNZN3	–	–	yes
301-428	Verizon	WSNGTNZN10	–	–	yes
301-429	Verizon	WSHNGTNZN4	–	–	yes
301-430	Verizon	WSNG236Z14	–	yes	yes
301-431	Verizon	WSHNGTNZN3	–	–	yes
301-432	Verizon	KEEDYSVL	–	yes	yes
301-433	Verizon	WSHNGTNZN5	–	yes	yes
301-434	Verizon	WSHNGTNZN3	–	–	yes
301-435	Verizon	WSHNGTNZN2	–	–	yes
301-436	Verizon	WSHNGTNZN4	–	–	yes
301-437	T-Mobile	WSHNGTNZN3	–	yes	yes
301-438	Verizon	WSNGTNZN12	–	yes	yes
301-439	Verizon	WSHNGTNZN3	–	–	yes
301-440	T-Mobile	WSHNGTNZN5	–	yes	yes
301-441	Verizon	WSNG236Z13	–	–	yes
301-442	T-Mobile	WSHNGTNZN3	–	yes	yes
301-443	Verizon	WSNGTNZN11	–	–	yes
301-444	Verizon	WSNGTNZN10	–	yes	yes
301-445	Verizon	WSHNGTNZN3	–	–	yes
301-446	Verizon	WSNG236Z13	–	yes	yes
301-447	Verizon	EMMITSBURG	–	yes	yes
301-448	Comcast	WSHNGTNZN3	–	yes	yes
301-449	Verizon	WSHNGTNZN5	–	–	yes
301-450	AT&T	WSHNGTNZN3	2022-07-15	yes	yes
301-451	Verizon	WSHNGTNZN2	–	–	yes
301-452	Verizon	WSHNGTNZN3	–	–	yes
301-453	Verizon	KITZMILLER	–	yes	yes
301-454	Verizon	WSHNGTNZN4	–	yes	yes
301-455	T-Mobile	WSHNGTNZN3	–	yes	yes
301-456	Comcast	WSHNGTNZN5	–	yes	yes
301-457	Verizon	WSHNGTNZN3	–	–	yes
301-458	AT&T	WSHNGTNZN4	–	yes	yes
301-459	Verizon	WSHNGTNZN4	–	–	yes
301-460	Verizon	WSNGTNZN11	–	–	yes
301-461	Verizon	WSNGTNZN10	–	–	yes
301-462	T-Mobile	MYERSVILLE	–	yes	yes
301-463	Verizon	LONACONING	–	yes	yes
301-464	Verizon	WSNG236Z14	–	–	yes
301-465	T-Mobile	MYERSVILLE	–	yes	yes
301-466	Verizon	WSHNGTNZN3	–	–	yes
301-467	Verizon	WSHNGTNZN3	–	–	yes
301-468	Verizon	WSNGTNZN11	–	–	yes
301-469	Verizon	WSHNGTNZN2	–	–	yes
301-470	Verizon	WSNG236Z14	–	yes	yes
301-471	Verizon	FREDERICK	–	–	yes
301-472	Verizon	MECHANCSVL	–	–	yes
301-473	Verizon	FREDERICK	–	yes	yes
301-474	Verizon	WSNG236Z13	–	–	yes
301-475	Verizon	LEONARDTN	–	–	yes
301-476	Verizon	ASHTON236	–	yes	yes
301-477	Comcast	WSNG236Z13	–	yes	yes
301-478	Verizon	FLINTSTONE	–	yes	yes
301-479	Verizon	WSNG236Z13	–	yes	yes
301-480	Verizon	WSHNGTNZN2	–	–	yes
301-481	Verizon	LEONARDTN	–	–	yes
301-482	Verizon	DAMASCS236	–	yes	yes
301-483	Verizon	LAUREL236	–	–	yes
301-484	Comcast	WSHNGTNZN4	–	–	yes
301-485	Comcast	WSHNGTNZN6	–	yes	yes
301-486	Verizon	WSNG236Z13	–	yes	yes
301-487	Verizon	MYERSVILLE	–	–	yes
301-488	Verizon	WSNG236Z13	–	–	yes
301-489	Verizon	WSNG236Z13	–	yes	yes
301-490	Verizon	LAUREL236	–	–	yes
301-491	UScellular	HAGERSTOWN	–	yes	yes
301-492	Verizon	WSHNGTNZN2	–	–	yes
301-493	Verizon	WSHNGTNZN2	–	–	yes
301-494	Verizon	WSNG238Z15	–	yes	yes
301-495	Verizon	WSHNGTNZN3	–	–	yes
301-496	Verizon	WSHNGTNZN2	–	–	yes
301-497	Verizon	LAUREL236	–	–	yes
301-498	Verizon	LAUREL236	–	–	yes
301-499	Verizon	WSHNGTNZN5	–	–	yes
301-500	Verizon	WSHNGTNZN2	–	yes	yes
301-501	AT&T	OAKLAND	–	yes	yes
301-502	Verizon	WSHNGTNZN3	–	–	yes
301-503	AT&T	WSHNGTNZN2	–	–	yes
301-504	Verizon	WSHNGTNZN3	–	–	yes
301-505	Verizon	WSHNGTNZN6	–	–	yes
301-506	Spok	WSNG236Z13	–	–	yes
301-507	Verizon	WSNG236Z13	–	yes	yes
301-508	AT&T	MYERSVILLE	–	yes	yes
301-509	Verizon	WSHNGTNZN3	–	–	yes
301-510	Spok	WSNG236Z13	–	–	yes
301-512	Verizon	WSHNGTNZN3	–	–	yes
301-513	Verizon	WSNG236Z13	–	yes	yes
301-514	Verizon	FREDERICK	–	–	yes
301-515	Verizon	GAITHERSBG	–	–	yes
301-516	Verizon	WSHNGTNZN5	–	–	yes
301-517	Verizon	WSNGTNZN10	–	yes	yes
301-518	Verizon	WSHNGTNZN3	–	–	yes
301-519	Verizon	GAITHERSBG	–	–	yes
301-520	Verizon	WSHNGTNZN3	–	–	yes
301-521	Verizon	WSHNGTNZN6	–	–	yes
301-522	Verizon	WSNGTNZN11	–	–	yes
301-523	T-Mobile	WSHNGTNZN3	–	yes	yes
301-524	T-Mobile	FREDERICK	–	yes	yes
301-525	QUANTUM TELECOMMUNICATIONS, INC. - MD	GAITHERSBG	2003-10-16	yes	yes
301-526	AT&T	WSHNGTNZN3	–	–	yes
301-527	Verizon	GAITHERSBG	–	–	yes
301-528	Verizon	GAITHERSBG	–	–	yes
301-529	AT&T	WSNGTNZN10	–	–	yes
301-530	Verizon	WSHNGTNZN2	–	–	yes
301-531	STARPOWER COMMUNICATIONS, LLC - MD	WSHNGTNZN4	–	yes	yes
301-532	T-Mobile	LAUREL238	2015-02-20	yes	yes
301-533	Verizon	OAKLAND	–	yes	yes
301-534	YMAX COMMUNICATIONS CORP. - MD	INDIANHEAD	2006-11-15	yes	yes
301-535	AT&T	WALDORF	–	–	yes
301-536	T-Mobile	LEONARDTN	–	yes	yes
301-537	T-Mobile	WSHNGTNZN3	–	yes	yes
301-538	AT&T	WSHNGTNZN2	–	–	yes
301-539	AT&T	LA PLATA	–	yes	yes
301-540	Verizon	GAITHERSBG	–	–	yes
301-541	AT&T	WSHNGTNZN5	–	yes	yes
301-542	AT&T	WALDORF	–	yes	yes
301-543	AT&T	LAUREL236	–	yes	yes
301-544	Verizon	WSNGTNZN10	–	–	yes
301-545	Verizon	WSNGTNZN10	–	yes	yes
301-546	Verizon	WSHNGTNZN4	2014-04-07	yes	yes
301-547	AT&T	WSHNGTNZN2	–	yes	yes
301-548	Verizon	WSNGTNZN10	–	–	yes
301-549	Verizon	ASHTON236	–	yes	yes
301-550	AT&T	WSNGTNZN10	2022-07-26	yes	yes
301-551	BALTIMORE-WASHINGTON TELEPHONE (BWT)	WSHNGTNZN3	–	–	yes
301-552	Verizon	WSNG236Z13	–	–	yes
301-553	Spok	WALDORF	–	–	yes
301-554	Spok	WSHNGTNZN2	–	–	yes
301-556	AT&T	GAITHERSBG	–	yes	yes
301-557	Lumen	WSHNGTNZN3	2011-09-06	yes	yes
301-558	T-Mobile	WSNG236Z13	2025-07-01	yes	yes
301-559	Verizon	WSHNGTNZN4	–	–	yes
301-560	Windstream	WSHNGTNZN4	–	–	yes
301-561	BALTIMORE-WASHINGTON TELEPHONE (BWT)	WSHNGTNZN3	–	–	yes
301-562	Verizon	WSHNGTNZN3	–	–	yes
301-563	Verizon	WSHNGTNZN3	–	yes	yes
301-564	Verizon	WSHNGTNZN2	–	–	yes
301-565	Verizon	WSHNGTNZN3	–	–	yes
301-566	Verizon	WSNG236Z13	–	–	yes
301-567	Verizon	WSHNGTNZN6	–	–	yes
301-568	Verizon	WSHNGTNZN5	–	–	yes
301-569	Verizon	GAITHERSBG	–	yes	yes
301-570	Verizon	ASHTON236	–	–	yes
301-571	Verizon	WSHNGTNZN2	–	–	yes
301-572	Verizon	WSHNGTNZN3	–	–	yes
301-573	T-Mobile	HAGERSTOWN	–	yes	yes
301-574	Verizon	WSNG236Z15	–	yes	yes
301-575	Windstream	LAUREL236	–	yes	yes
301-576	Windstream	WSHNGTNZN3	–	–	yes
301-577	Verizon	WSHNGTNZN4	–	–	yes
301-578	Verizon	WSHNGTNZN3	–	yes	yes
301-579	Verizon	BRANDYWINE	–	yes	yes
301-580	Verizon	WSHNGTNZN3	–	–	yes
301-581	Verizon	WSHNGTNZN2	–	–	yes
301-582	Verizon	HAGERSTOWN	–	yes	yes
301-583	Verizon	WSHNGTNZN4	–	yes	yes
301-584	BALTIMORE-WASHINGTON TELEPHONE (BWT)	WSNGTNZN12	–	–	yes
301-585	Verizon	WSHNGTNZN3	–	–	yes
301-586	Verizon	WSHNGTNZN3	–	yes	yes
301-587	Verizon	WSHNGTNZN3	–	–	yes
301-588	Verizon	WSHNGTNZN3	–	–	yes
301-589	Verizon	WSHNGTNZN3	–	–	yes
301-590	Verizon	WSNGTNZN10	–	yes	yes
301-591	Windstream	GAITHERSBG	–	yes	yes
301-592	Verizon	WSHNGTNZN3	–	yes	yes
301-593	Verizon	WSHNGTNZN3	–	–	yes
301-594	Verizon	WSHNGTNZN2	–	–	yes
301-595	Verizon	WSNG236Z13	–	–	yes
301-596	Verizon	LAUREL238	–	–	yes
301-597	AT&T	WALDORF	2022-01-24	yes	yes
301-598	Verizon	WSNGTNZN12	–	–	yes
301-599	Verizon	WSHNGTNZN5	–	–	yes
301-600	Verizon	FREDERICK	2006-07-06	yes	yes
301-601	Verizon	WSNGTNZN10	–	–	yes
301-602	Verizon	WSHNGTNZN3	–	–	yes
301-603	Verizon	WSNGTNZN11	–	yes	yes
301-604	Verizon	LAUREL236	–	–	yes
301-605	Verizon	WSNGTNZN10	–	yes	yes
301-606	Verizon	FREDERICK	–	–	yes
301-607	Verizon	DAMASCS240	–	yes	yes
301-608	Verizon	WSHNGTNZN3	–	–	yes
301-609	Verizon	WALDORF	–	yes	yes
301-610	Verizon	WSNGTNZN10	–	yes	yes
301-612	AT&T	WSNG238Z14	2012-10-11	yes	yes
301-613	T-Mobile	WSHNGTNZN3	–	yes	yes
301-614	Verizon	WSNG236Z13	–	–	yes
301-615	Bandwidth	WSNG236Z13	–	–	yes
301-616	UScellular	OAKLAND	–	yes	yes
301-617	Verizon	LAUREL236	–	–	yes
301-618	Verizon	WSHNGTNZN4	–	yes	yes
301-619	Verizon	FREDERICK	–	–	yes
301-620	Verizon	FREDERICK	–	–	yes
301-621	Verizon	WSNG238Z14	–	–	yes
301-622	Verizon	WSHNGTNZN3	–	–	yes
301-623	AT&T	WSNG236Z13	–	yes	yes
301-624	Verizon	FREDERICK	–	yes	yes
301-625	Verizon	WSHNGTNZN3	–	–	yes
301-626	Verizon	WSHNGTNZN3	–	–	yes
301-627	Verizon	WSNG236Z15	–	–	yes
301-628	AT&T	WSHNGTNZN3	–	yes	yes
301-629	Verizon	WSNG238Z14	–	yes	yes
301-630	Verizon	WSHNGTNZN6	–	–	yes
301-631	Verizon	FREDERICK	–	yes	yes
301-632	Verizon	WALDORF	–	yes	yes
301-633	AT&T	WSHNGTNZN2	–	–	yes
301-634	AT&T	WSHNGTNZN2	–	–	yes
301-635	Bandwidth	WSHNGTNZN5	2022-07-27	yes	yes
301-636	Verizon	WSHNGTNZN5	–	yes	yes
301-637	Lumen	WSNGTNZN10	–	yes	yes
301-638	Verizon	WALDORF	–	yes	yes
301-639	Verizon	FREDERICK	–	–	yes
301-640	Verizon	WSNGTNZN10	–	yes	yes
301-641	Verizon	WSHNGTNZN3	–	–	yes
301-642	AT&T	WSHNGTNZN2	–	–	yes
301-643	Verizon	WALDORF	–	–	yes
301-644	Verizon	FREDERICK	–	yes	yes
301-645	Verizon	WALDORF	–	–	yes
301-646	AT&T	WSHNGTNZN2	–	–	yes
301-647	American Messaging	WSNG236Z13	–	–	yes
301-648	AT&T	WSHNGTNZN2	–	–	yes
301-649	Verizon	WSNGTNZN11	–	–	yes
301-650	Verizon	WSHNGTNZN3	–	–	yes
301-651	Verizon	WSHNGTNZN3	–	–	yes
301-652	Verizon	WSHNGTNZN2	–	–	yes
301-653	AT&T	WALDORF	–	–	yes
301-654	Verizon	WSHNGTNZN2	–	–	yes
301-655	AT&T	WSHNGTNZN2	–	–	yes
301-656	Verizon	WSHNGTNZN2	–	–	yes
301-657	Verizon	WSHNGTNZN2	–	–	yes
301-658	AT&T	ASHTON236	–	yes	yes
301-659	AT&T	WALDORF	–	yes	yes
301-660	AT&T	KEEDYSVL	2004-03-19	yes	yes
301-661	AT&T	WSHNGTNZN2	–	–	yes
301-662	Verizon	FREDERICK	–	–	yes
301-663	Verizon	FREDERICK	–	–	yes
301-664	Verizon	WSHNGTNZN2	–	yes	yes
301-665	Verizon	HAGERSTOWN	–	yes	yes
301-666	AT&T	WSNG236Z14	–	yes	yes
301-667	AT&T	MYERSVILLE	–	–	yes
301-668	Verizon	FREDERICK	–	–	yes
301-669	Verizon	WSHNGTNZN5	–	–	yes
301-670	Verizon	WSNGTNZN10	–	–	yes
301-671	Bandwidth	HAGERSTOWN	–	–	yes
301-672	T-Mobile	LXTNPKGRML	–	yes	yes
301-673	AT&T	FREDERICK	–	yes	yes
301-674	T-Mobile	WSHNGTNZN2	–	yes	yes
301-675	T-Mobile	WSHNGTNZN3	–	–	yes
301-676	AT&T	FREDERICK	–	–	yes
301-677	AT&T	WSNG236Z14	–	–	yes
301-678	Verizon	HANCOCK	–	yes	yes
301-679	AT&T	WSNGTNZN12	–	yes	yes
301-680	Verizon	WSHNGTNZN3	–	–	yes
301-681	Verizon	WSHNGTNZN3	–	–	yes
301-682	Verizon	FREDERICK	–	yes	yes
301-683	AT&T	WSHNGTNZN4	–	yes	yes
301-684	AT&T	INDIANHEAD	–	yes	yes
301-685	AT&T	DAMASCS236	–	yes	yes
301-686	Verizon	WSHNGTNZN6	–	yes	yes
301-687	Verizon	FROSTBURG	–	yes	yes
301-688	Verizon	WSNG236Z13	–	–	yes
301-689	Verizon	FROSTBURG	–	yes	yes
301-690	IDT AMERICA, CORP. - MD	LEONARDTN	2007-05-23	yes	yes
301-691	AT&T	POOLESVL	–	yes	yes
301-692	AT&T	WSNGTNZN11	–	yes	yes
301-693	T-Mobile	FREDERICK	–	–	yes
301-694	Verizon	FREDERICK	–	–	yes
301-695	Verizon	FREDERICK	–	–	yes
301-696	Verizon	FREDERICK	–	–	yes
301-697	AT&T	CUMBERLAND	–	–	yes
301-698	Verizon	FREDERICK	–	–	yes
301-699	Verizon	WSHNGTNZN4	–	–	yes
301-701	Bandwidth	WSNG236Z13	–	yes	yes
301-702	Verizon	WSHNGTNZN5	–	–	yes
301-703	Lumen	MOUNT AIRY	2002-08-29	yes	yes
301-704	Verizon	WSHNGTNZN3	–	–	yes
301-705	Verizon	WALDORF	–	yes	yes
301-706	Verizon	WSHNGTNZN3	–	–	yes
301-707	UScellular	CUMBERLAND	–	yes	yes
301-708	Verizon	LAUREL238	–	yes	yes
301-709	CSC WIRELESS, LLC	CUMBERLAND	2019-05-28	yes	yes
301-710	Lumen	WALDORF	2005-12-30	yes	yes
301-712	Verizon	FREDERICK	–	yes	yes
301-713	Verizon	WSHNGTNZN3	–	–	yes
301-714	Verizon	HAGERSTOWN	–	yes	yes
301-715	AT&T	WSNG236Z15	–	yes	yes
301-716	Verizon	WSNG236Z13	–	–	yes
301-717	Verizon	WSHNGTNZN3	–	–	yes
301-718	Verizon	WSHNGTNZN2	–	–	yes
301-719	AT&T	WSNGTNZN16	–	yes	yes
301-720	AT&T	BRANDYWINE	–	yes	yes
301-721	Verizon	WSNGTNZN10	–	–	yes
301-722	Verizon	CUMBERLAND	–	–	yes
301-723	Verizon	CUMBERLAND	–	yes	yes
301-724	Verizon	CUMBERLAND	–	–	yes
301-725	Verizon	LAUREL236	–	–	yes
301-726	Verizon	KITZMILLER	2023-02-07	yes	yes
301-727	BALTIMORE-WASHINGTON TELEPHONE (BWT)	WSHNGTNZN5	–	–	yes
301-728	T-Mobile	WSHNGTNZN3	–	–	yes
301-729	Verizon	CUMBERLAND	–	–	yes
301-730	AT&T	MYERSVILLE	–	–	yes
301-731	Verizon	WSHNGTNZN4	–	–	yes
301-732	T-Mobile	FREDERICK	–	yes	yes
301-733	Verizon	HAGERSTOWN	–	–	yes
301-734	Verizon	WSHNGTNZN3	–	–	yes
301-735	Verizon	WSHNGTNZN5	–	–	yes
301-736	Verizon	WSHNGTNZN5	–	–	yes
301-737	Verizon	LXTNPKGRML	–	–	yes
301-738	Verizon	WSNGTNZN10	–	–	yes
301-739	Verizon	HAGERSTOWN	–	–	yes
301-740	Verizon	GAITHERSBG	2004-04-22	yes	yes
301-741	Lumen	LAUREL236	–	yes	yes
301-742	AT&T	WSHNGTNZN2	–	–	yes
301-743	Verizon	INDIANHEAD	–	yes	yes
301-744	Verizon	INDIANHEAD	–	yes	yes
301-745	Verizon	HAGERSTOWN	–	yes	yes
301-746	Verizon	FRIENDSVL	–	yes	yes
301-747	AT&T	WSHNGTNZN6	–	yes	yes
301-748	T-Mobile	FREDERICK	–	yes	yes
301-749	Verizon	WSHNGTNZN6	–	–	yes
301-750	CORE COMMUNICATIONS, INC.- MD	FRIENDSVL	2004-03-18	yes	yes
301-751	Verizon	WALDORF	–	–	yes
301-752	Verizon	WALDORF	–	–	yes
301-753	Verizon	WSHNGTNZN6	–	yes	yes
301-754	Verizon	WSHNGTNZN3	–	yes	yes
301-755	Verizon	WSHNGTNZN3	–	yes	yes
301-756	Lumen	WSNG236Z14	–	yes	yes
301-757	Verizon	LXTNPKGRML	–	–	yes
301-758	Verizon	WSHNGTNZN3	–	–	yes
301-759	Verizon	CUMBERLAND	–	–	yes
301-760	Lumen	WSHNGTNZN2	2002-02-27	yes	yes
301-761	Lumen	WSNGTNZN11	2002-02-27	yes	yes
301-762	Verizon	WSNGTNZN10	–	–	yes
301-763	Verizon	WSHNGTNZN5	–	–	yes
301-764	Verizon	WALDORF	–	yes	yes
301-765	Verizon	WSNGTNZN10	–	yes	yes
301-766	Verizon	HAGERSTOWN	–	–	yes
301-767	Verizon	WSHNGTNZN2	–	yes	yes
301-768	Lumen	WSHNGTNZN3	2002-02-27	yes	yes
301-769	Verizon	LEONARDTN	–	yes	yes
301-770	Verizon	WSNGTNZN11	–	–	yes
301-771	Verizon	WSHNGTNZN2	–	yes	yes
301-772	Verizon	WSHNGTNZN4	–	–	yes
301-773	Verizon	WSHNGTNZN4	–	–	yes
301-774	Verizon	ASHTON236	–	–	yes
301-775	Verizon	WSHNGTNZN3	–	–	yes
301-776	Verizon	LAUREL236	–	–	yes
301-777	Verizon	CUMBERLAND	–	yes	yes
301-778	Verizon	WSHNGTNZN5	–	yes	yes
301-779	Verizon	WSHNGTNZN4	–	–	yes
301-780	Verizon	WSNG236Z15	–	yes	yes
301-781	Charter	WSHNGTNZN4	2022-05-04	yes	yes
301-782	Verizon	BRANDYWINE	–	yes	yes
301-783	Bandwidth	CUMBERLAND	–	–	yes
301-784	Verizon	CUMBERLAND	–	yes	yes
301-785	Verizon	WSHNGTNZN3	–	–	yes
301-786	Verizon	MCCOOLE	–	yes	yes
301-787	Verizon	WSHNGTNZN3	–	yes	yes
301-788	Verizon	FREDERICK	–	–	yes
301-789	CORE COMMUNICATIONS, INC.- MD	WSHNGTNZN4	2002-08-13	yes	yes
301-790	Verizon	HAGERSTOWN	–	–	yes
301-791	Verizon	HAGERSTOWN	–	–	yes
301-792	T-Mobile	WSHNGTNZN3	–	–	yes
301-793	T-Mobile	WSHNGTNZN3	–	–	yes
301-794	Verizon	WSNG236Z14	–	yes	yes
301-795	Verizon	WSNGTNZN10	–	yes	yes
301-796	Verizon	WSNG236Z13	2003-06-30	–	yes
301-797	Verizon	HAGERSTOWN	–	–	yes
301-798	Verizon	DAMASCS240	–	yes	yes
301-799	CORE COMMUNICATIONS, INC.- MD	KEEDYSVL	2004-03-18	yes	yes
301-800	T-Mobile	HAGERSTOWN	–	yes	yes
301-801	Verizon	WSHNGTNZN3	–	–	yes
301-802	Verizon	WSHNGTNZN3	–	–	yes
301-803	Verizon	WSHNGTNZN2	–	yes	yes
301-804	Verizon	ASHTON236	–	yes	yes
301-805	Verizon	WSNG236Z14	–	–	yes
301-806	T-Mobile	WSHNGTNZN3	–	yes	yes
301-807	Verizon	WSHNGTNZN3	–	–	yes
301-808	Verizon	WSHNGTNZN5	–	–	yes
301-809	Verizon	WSNG236Z14	–	yes	yes
301-810	Charter	BUCKEYSTN	–	yes	yes
301-812	Verizon	WSNG238Z15	–	yes	yes
301-813	BALTIMORE-WASHINGTON TELEPHONE (BWT)	WSHNGTNZN2	–	–	yes
301-814	AT&T	WSHNGTNZN2	–	–	yes
301-815	Verizon	FREDERICK	–	–	yes
301-816	Verizon	WSNGTNZN11	–	–	yes
301-817	Verizon	WSHNGTNZN5	–	–	yes
301-818	Bandwidth	WALDORF	–	–	yes
301-819	Verizon	WSHNGTNZN3	–	–	yes
301-820	AT&T	GAITHERSBG	–	yes	yes
301-821	AT&T	LAUREL236	–	yes	yes
301-822	Verizon	WSNGTNZN11	–	yes	yes
301-823	AT&T	WSNG236Z13	–	yes	yes
301-824	Verizon	SMITHSBURG	–	yes	yes
301-825	AT&T	WSNGTNZN10	–	yes	yes
301-826	Verizon	LXTNPKGRML	–	–	yes
301-827	Verizon	WSHNGTNZN2	–	–	yes
301-828	AT&T	WSHNGTNZN2	–	yes	yes
301-829	Verizon	MOUNT AIRY	–	yes	yes
301-830	AT&T	WSHNGTNZN3	–	yes	yes
301-831	Verizon	DAMASCS240	–	–	yes
301-832	AT&T	WSHNGTNZN4	–	yes	yes
301-833	AT&T	WSNG236Z14	–	yes	yes
301-834	Verizon	BRUNSWICK	–	yes	yes
301-835	Vonage	FREDERICK	2018-11-27	yes	yes
301-836	Verizon	WSHNGTNZN5	–	yes	yes
301-837	Verizon	WSNG236Z13	–	yes	yes
301-838	Verizon	WSNGTNZN10	–	yes	yes
301-839	Verizon	WSHNGTNZN6	–	–	yes
301-840	Verizon	WSNGTNZN10	–	–	yes
301-841	Verizon	WSHNGTNZN2	–	yes	yes
301-842	Verizon	CLEAR SPG	–	yes	yes
301-843	Verizon	WSHNGTNZN6	–	–	yes
301-844	T-Mobile	WSHNGTNZN3	2011-10-04	yes	yes
301-845	Verizon	WALKERSVL	–	yes	yes
301-846	Verizon	FREDERICK	–	yes	yes
301-847	Verizon	WSNGTNZN12	–	yes	yes
301-848	Verizon	WALDORF	–	–	yes
301-849	Bandwidth	OAKLAND	–	–	yes
301-850	Lumen	WSNG236Z14	–	yes	yes
301-851	Verizon	WSHNGTNZN4	–	yes	yes
301-852	Verizon	WSHNGTNZN4	–	yes	yes
301-853	Verizon	WSHNGTNZN4	–	–	yes
301-854	Verizon	ASHTON238	–	yes	yes
301-855	Verizon	WSNG238Z15	–	–	yes
301-856	Verizon	WSNGTNZN16	–	–	yes
301-857	CORE COMMUNICATIONS, INC.- MD	CLEAR SPG	2002-07-12	yes	yes
301-858	Verizon	WSNG238Z14	–	–	yes
301-859	Lumen	OAKLAND	2002-01-09	yes	yes
301-860	Verizon	WSNG236Z14	–	yes	yes
301-861	Lumen	WALDORF	–	yes	yes
301-862	Verizon	LXTNPKGRML	–	yes	yes
301-863	Verizon	LXTNPKGRML	–	–	yes
301-864	Verizon	WSHNGTNZN4	–	–	yes
301-865	Verizon	NEW MARKET	–	–	yes
301-866	Verizon	LXTNPKGRML	–	yes	yes
301-867	Verizon	WSNG236Z14	–	yes	yes
301-868	Verizon	WSNGTNZN16	–	–	yes
301-869	Verizon	GAITHERSBG	–	–	yes
301-870	Verizon	WSHNGTNZN6	–	–	yes
301-871	Verizon	WSNGTNZN11	–	–	yes
301-872	Verizon	RIDGE	–	yes	yes
301-873	Verizon	WSHNGTNZN3	–	–	yes
301-874	Verizon	BUCKEYSTN	–	–	yes
301-875	Verizon	LAUREL236	–	yes	yes
301-876	Lumen	CUMBERLAND	2002-05-02	yes	yes
301-877	Verizon	WSNGTNZN16	–	–	yes
301-878	Verizon	BALTIMORE	–	–	yes
301-879	Verizon	WSNGTNZN12	–	–	yes
301-880	Lumen	LXTNPKGRML	–	yes	yes
301-881	Verizon	WSNGTNZN11	–	–	yes
301-882	CORE COMMUNICATIONS, INC.- MD	NEW MARKET	2004-03-18	yes	yes
301-883	Verizon	WSHNGTNZN5	–	yes	yes
301-884	Verizon	MECHANCSVL	–	–	yes
301-885	Verizon	WALDORF	–	yes	yes
301-886	Bandwidth	WSNG236Z13	–	yes	yes
301-887	Verizon	WSHNGTNZN4	–	yes	yes
301-888	Verizon	WSNGTNZN16	–	yes	yes
301-889	Verizon	WSNG238Z14	–	yes	yes
301-890	Verizon	WSNGTNZN12	–	–	yes
301-891	Verizon	WSHNGTNZN3	–	yes	yes
301-892	Verizon	WSHNGTNZN4	2005-03-11	yes	yes
301-893	Verizon	WSHNGTNZN6	–	yes	yes
301-894	Verizon	WSHNGTNZN6	–	–	yes
301-895	Verizon	GRANTSVL	–	yes	yes
301-896	Verizon	WSHNGTNZN2	–	–	yes
301-897	Verizon	WSHNGTNZN2	–	–	yes
301-898	Verizon	FREDERICK	–	yes	yes
301-899	Verizon	WSHNGTNZN5	–	–	yes
301-900	Onvoy	WSHNGTNZN2	2015-02-18	yes	yes
301-901	Verizon	WSNG236Z13	–	yes	yes
301-902	Verizon	WSNG236Z13	–	yes	yes
301-903	Verizon	WSNGTNZN10	–	–	yes
301-904	Verizon	LEONARDTN	–	–	yes
301-905	Verizon	WSHNGTNZN3	–	yes	yes
301-906	AT&T	WSHNGTNZN2	–	–	yes
301-907	Verizon	WSHNGTNZN2	–	yes	yes
301-908	Verizon	WSHNGTNZN3	–	–	yes
301-909	Verizon	WSHNGTNZN5	–	yes	yes
301-910	AT&T	WSHNGTNZN2	–	–	yes
301-912	Verizon	WSNG238Z14	–	yes	yes
301-913	Verizon	WSHNGTNZN2	–	yes	yes
301-914	MOUNTAIN COMMUNICATIONS, LLC DBA PROCOM - MD	OAKLAND	2012-12-27	yes	yes
301-915	STARPOWER COMMUNICATIONS, LLC - MD	WSHNGTNZN2	–	yes	yes
301-916	Verizon	GAITHERSBG	–	–	yes
301-917	STARPOWER COMMUNICATIONS, LLC - MD	WSNGTNZN10	–	yes	yes
301-918	Verizon	WSHNGTNZN4	–	yes	yes
301-919	AT&T	WSHNGTNZN2	–	–	yes
301-920	STARPOWER COMMUNICATIONS, LLC - MD	WSHNGTNZN3	–	yes	yes
301-921	Verizon	WSNGTNZN10	–	yes	yes
301-922	Verizon	WSHNGTNZN3	–	–	yes
301-923	Bandwidth	WSNG236Z13	–	yes	yes
301-924	Verizon	WSNGTNZN12	–	–	yes
301-925	Verizon	WSHNGTNZN5	–	–	yes
301-926	Verizon	GAITHERSBG	–	–	yes
301-927	Verizon	WSHNGTNZN4	–	–	yes
301-928	Verizon	WSHNGTNZN3	–	–	yes
301-929	Verizon	WSNGTNZN11	–	–	yes
301-930	Verizon	WSHNGTNZN3	–	–	yes
301-931	Verizon	WSNG236Z13	–	yes	yes
301-932	Verizon	WALDORF	–	–	yes
301-933	Verizon	WSNGTNZN11	–	–	yes
301-934	Verizon	LA PLATA	–	–	yes
301-935	Verizon	WSNG236Z13	–	yes	yes
301-936	Telnyx	HAGERSTOWN	2017-06-02	yes	yes
301-937	Verizon	WSNG236Z13	–	–	yes
301-938	Verizon	WSHNGTNZN3	–	–	yes
301-939	Verizon	WSNG236Z13	–	yes	yes
301-940	Verizon	WSHNGTNZN5	–	–	yes
301-941	Verizon	WSHNGTNZN2	–	yes	yes
301-942	Verizon	WSNGTNZN11	–	–	yes
301-943	Verizon	WSHNGTNZN3	–	–	yes
301-944	Verizon	GAITHERSBG	–	yes	yes
301-945	Verizon	WSNGTNZN11	–	yes	yes
301-946	Verizon	WSNGTNZN11	–	–	yes
301-947	Verizon	GAITHERSBG	–	–	yes
301-948	Verizon	WSNGTNZN10	–	–	yes
301-949	Verizon	WSNGTNZN11	–	–	yes
301-951	Verizon	WSHNGTNZN2	–	–	yes
301-952	Verizon	WSNG236Z15	–	–	yes
301-953	Verizon	WSNG236Z13	–	yes	yes
301-955	Verizon	WSHNGTNZN4	–	yes	yes
301-956	Verizon	GAITHERSBG	2002-05-22	yes	yes
301-957	Verizon	LAUREL236	–	yes	yes
301-960	Verizon	WSHNGTNZN3	–	yes	yes
301-961	Verizon	WSHNGTNZN2	–	–	yes
301-962	Verizon	WSNGTNZN11	–	yes	yes
301-963	Verizon	GAITHERSBG	–	–	yes
301-964	AT&T	MYERSVILLE	–	yes	yes
301-965	Verizon	WSHNGTNZN6	–	yes	yes
301-966	Verizon	WSNGTNZN12	–	yes	yes
301-967	Verizon	WSHNGTNZN5	–	–	yes
301-968	Verizon	WSHNGTNZN2	–	yes	yes
301-969	Comcast	BRUNSWICK	2007-03-06	yes	yes
301-970	Verizon	WSNG238Z14	–	yes	yes
301-971	STARPOWER COMMUNICATIONS, LLC - MD	WSHNGTNZN6	–	yes	yes
301-972	Verizon	GAITHERSBG	–	–	yes
301-973	Bandwidth	WSNG238Z14	–	yes	yes
301-974	STARPOWER COMMUNICATIONS, LLC - MD	LAUREL236	–	yes	yes
301-975	Verizon	WSNGTNZN10	–	yes	yes
301-977	Verizon	GAITHERSBG	–	–	yes
301-978	Verizon	WSNGTNZN10	–	yes	yes
301-979	T-Mobile	WSNGTNZN10	–	yes	yes
301-980	Verizon	WSHNGTNZN3	–	–	yes
301-981	Lumen	WSHNGTNZN5	–	–	yes
301-982	Verizon	WSNG236Z13	–	–	yes
301-983	Verizon	WSNGTNZN10	–	–	yes
301-984	Verizon	WSNGTNZN11	–	–	yes
301-985	Verizon	WSHNGTNZN4	–	yes	yes
301-986	Verizon	WSHNGTNZN2	–	–	yes
301-987	Verizon	GAITHERSBG	–	–	yes
301-988	UScellular	HAGERSTOWN	–	yes	yes
301-989	Verizon	WSNGTNZN12	–	–	yes
301-990	Verizon	GAITHERSBG	–	–	yes
301-991	T-Mobile	HAGERSTOWN	–	yes	yes
301-992	T-Mobile	HAGERSTOWN	–	yes	yes
301-993	Verizon	WSNG236Z13	–	–	yes
301-994	Verizon	LXTNPKGRML	–	yes	yes
301-995	Verizon	LXTNPKGRML	–	–	yes
301-996	T-Mobile	WSHNGTNZN3	–	yes	yes
301-997	Verizon	LEONARDTN	–	yes	yes
301-998	Verizon	WSNGTNZN11	–	–	yes

Frequently asked

How many prefixes does area code 301 have?

784 NXX blocks are assigned of 786 possible. Each block is 10,000 consecutive numbers, so the code currently covers about 7,840 thousand-number ranges across 64 rate centers.

What do the first three digits after 301 tell me?

They identify the block, which tells you the rate center it was allocated to and the carrier that received it. They do not tell you who serves the number today: portability moves numbers between carriers, and pooling splits a block between several of them.

Is a 301 prefix tied to a specific town?

To a rate center, which is billing geography rather than a town. NANPA abbreviates rate center names to ten characters and in large metros uses zone codes, so the name is a NANPA label, not a place name.

What does “pooled” mean in the 301 table?

That the block is in thousands-block pooling: carriers draw 1,000-number lots from it instead of taking all 10,000. 397 of 301's blocks are pooled, which is how regulators slowed down area code exhaustion – and why one prefix can belong to several carriers.

Source and limits

NANPA CO Code Assignment Records, all states, utilized codes, file updated 11/01/2026 – the rows where the record's Use field is “AS” (assigned). Unavailable codes are excluded. The records say who received a block and when, not who serves a particular number today.

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