FREDERICK prefixes in area code 240
NANPA records 43 assigned NXX blocks to rate center FREDERICK in area code 240, 5.5% of the 785 blocks assigned in the code. A rate center is the billing geography a block is allocated to – NANPA truncates the name to ten characters, so read it as a NANPA label rather than a town. 17 holders hold those blocks, the largest being CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD (11), VERIZON MARYLAND, INC. (7), NEW CINGULAR WIRELESS PCS, LLC - DC (4). The earliest assignment on record here is 2001-08-09 and the most recent 2021-08-11. 40 of them are in thousands-block pooling, so those prefixes are shared between carriers in 1,000-number lots. The same rate center name also appears in area codes 227, 301, 580, 605 – overlay codes cover the same geography, so a rate center is served by all of them.
Prefixes assigned here
| Prefix | Holder of record | Assigned | Pooled | In service |
|---|---|---|---|---|
| 240-215 | Lumen LEVEL 3 COMMUNICATIONS, LLC - MD | – | yes | yes |
| 240-225 | CORE COMMUNICATIONS, INC.- MD | – | no | yes |
| 240-236 | Verizon VERIZON MARYLAND, INC. | – | yes | yes |
| 240-285 | Verizon CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD | – | yes | yes |
| 240-315 | Verizon VERIZON MARYLAND, INC. | – | yes | yes |
| 240-344 | AT&T NEW CINGULAR WIRELESS PCS, LLC - DC | 2002-10-15 | yes | yes |
| 240-357 | Verizon CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD | 2006-06-12 | yes | yes |
| 240-367 | T-Mobile OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC | 2002-10-18 | yes | yes |
| 240-379 | Verizon VERIZON MARYLAND, INC. | – | no | yes |
| 240-397 | Verizon CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD | 2009-03-06 | yes | yes |
| 240-405 | Windstream PAETEC ITEL, LLC | 2004-07-27 | yes | yes |
| 240-409 | AT&T NEW CINGULAR WIRELESS PCS, LLC - DC | – | no | yes |
| 240-415 | YMAX COMMUNICATIONS CORP. - MD | 2008-12-16 | yes | yes |
| 240-422 | T-Mobile OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC | 2002-05-15 | yes | yes |
| 240-439 | Verizon CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD | 2008-06-06 | yes | yes |
| 240-440 | AT&T NEW CINGULAR WIRELESS PCS, LLC - DC | 2009-02-27 | yes | yes |
| 240-446 | Verizon CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD | 2001-08-09 | yes | yes |
| 240-457 | Verizon CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD | 2008-09-04 | yes | yes |
| 240-529 | Verizon VERIZON MARYLAND, INC. | – | yes | yes |
| 240-549 | Verizon CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD | 2016-03-17 | yes | yes |
| 240-566 | Verizon VERIZON MARYLAND, INC. | 2002-06-11 | yes | yes |
| 240-575 | Lumen LEVEL 3 COMMUNICATIONS, LLC - MD | 2005-12-30 | yes | yes |
| 240-578 | Verizon CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD | 2011-07-08 | yes | yes |
| 240-586 | Verizon VERIZON MARYLAND, INC. | 2006-12-22 | yes | yes |
| 240-608 | NUSO, LLC | 2013-03-11 | yes | yes |
| 240-626 | T-Mobile OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC | – | yes | yes |
| 240-629 | Verizon VERIZON MARYLAND, INC. | – | yes | yes |
| 240-651 | Verizon CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD | – | yes | yes |
| 240-656 | AT&T NEW CINGULAR WIRELESS PCS, LLC - DC | 2019-08-30 | yes | yes |
| 240-674 | T-Mobile METROPCS, INC. | – | yes | yes |
| 240-680 | Peerless PEERLESS NETWORK OF MARYLAND, LLC | 2018-10-29 | yes | yes |
| 240-710 | Verizon MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MD | 2019-12-30 | yes | yes |
| 240-739 | IP HORIZON LLC | 2020-09-15 | yes | yes |
| 240-741 | AIRESPRING, INC. | 2020-10-01 | yes | yes |
| 240-772 | Verizon CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD | 2011-11-17 | yes | yes |
| 240-792 | T-Mobile OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC | 2021-08-11 | yes | yes |
| 240-815 | Verizon CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD | 2015-11-17 | yes | yes |
| 240-831 | Onvoy ONVOY, LLC - MD | 2016-04-26 | yes | yes |
| 240-840 | Charter ONVOY SPECTRUM, LLC | 2018-06-19 | yes | yes |
| 240-877 | Onvoy ONVOY, LLC - MD | 2016-08-25 | yes | yes |
| 240-910 | Onvoy ONVOY, LLC - MD | 2021-03-03 | yes | yes |
| 240-931 | NUSO, LLC | – | yes | yes |
| 240-971 | Lumen CENTURYLINK COMMUNICATIONS, LLC | 2016-08-02 | yes | yes |
The holder is who received the block from the numbering administrator. It is not necessarily the carrier serving a given number: numbers move with their owners, and a pooled block is shared.
Who holds the blocks
| Holder | Brand | Blocks | Share here |
|---|---|---|---|
| CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD | Verizon | 11 | 25.6% |
| VERIZON MARYLAND, INC. | Verizon | 7 | 16.3% |
| NEW CINGULAR WIRELESS PCS, LLC - DC | AT&T | 4 | 9.3% |
| OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC | T-Mobile | 4 | 9.3% |
| ONVOY, LLC - MD | Onvoy | 3 | 7% |
| LEVEL 3 COMMUNICATIONS, LLC - MD | Lumen | 2 | 4.7% |
| NUSO, LLC | – | 2 | 4.7% |
| CORE COMMUNICATIONS, INC.- MD | – | 1 | 2.3% |
| PAETEC ITEL, LLC | Windstream | 1 | 2.3% |
| YMAX COMMUNICATIONS CORP. - MD | – | 1 | 2.3% |
| METROPCS, INC. | T-Mobile | 1 | 2.3% |
| PEERLESS NETWORK OF MARYLAND, LLC | Peerless | 1 | 2.3% |
| MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MD | Verizon | 1 | 2.3% |
| IP HORIZON LLC | – | 1 | 2.3% |
| AIRESPRING, INC. | – | 1 | 2.3% |
| ONVOY SPECTRUM, LLC | Charter | 1 | 2.3% |
| CENTURYLINK COMMUNICATIONS, LLC | Lumen | 1 | 2.3% |
Same rate center in other codes
Overlay codes cover the same geography, so one rate center is served by all of them.
Frequently asked
Which prefixes belong to FREDERICK in area code 240?
43 blocks: 215, 225, 236, 285, 315, 344, 357, 367, 379, 397, 405, 409 and 31 more, all listed in the table above.
Which carriers have numbers in FREDERICK?
CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD (11 blocks), VERIZON MARYLAND, INC. (7 blocks), NEW CINGULAR WIRELESS PCS, LLC - DC (4 blocks), OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC (4 blocks), ONVOY, LLC - MD (3 blocks), LEVEL 3 COMMUNICATIONS, LLC - MD (2 blocks). These are the holders on record; the carrier actually serving a given number can differ, because numbers move with their owners.
Is FREDERICK a city?
It is a rate center – the unit NANPA allocates number blocks to. Its name is abbreviated to ten characters and is not necessarily a settlement: we print it as recorded rather than guess at the full name.