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

READING prefixes in area code 484

NANPA records 51 assigned NXX blocks to rate center READING in area code 484, 6.5% of the 786 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. 16 holders hold those blocks, the largest being D&E/OMNIPOINT WIREL JOINT VENT LP DBA PCS ONE (13), CELLCO PARTNERSHIP DBA VERIZON WIRELESS - PA (13), COMCAST IP PHONE, LLC (4). The earliest assignment on record here is 2001-02-09 and the most recent 2022-07-19. 46 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 517, 610, 620, 781 – overlay codes cover the same geography, so a rate center is served by all of them.

51 assigned blocks – 6.5% of 484
16 holders of record
46 of them pooled in 1,000-number lots

Prefixes assigned here

PrefixHolder of recordAssignedPooledIn service
484-219 T-Mobile D&E/OMNIPOINT WIREL JOINT VENT LP DBA PCS ONE 2011-03-07 yes yes
484-220 Windstream PAETEC ITEL, LLC – yes yes
484-256 T-Mobile METROPCS, INC. – yes yes
484-258 Windstream WINDSTREAM D & E SYSTEMS, INC. - PA 2010-04-05 yes yes
484-269 Verizon CELLCO PARTNERSHIP DBA VERIZON WIRELESS - PA 2001-02-09 yes yes
484-331 Lumen LEVEL 3 COMMUNICATIONS, LLC - PA – yes yes
484-332 Verizon CELLCO PARTNERSHIP DBA VERIZON WIRELESS - PA – no yes
484-333 LIMITLESS MOBILE, LLC – no yes
484-334 Lumen LEVEL 3 COMMUNICATIONS, LLC - PA – yes yes
484-335 Lumen LEVEL 3 COMMUNICATIONS, LLC - PA – yes yes
484-336 AT&T NEW CINGULAR WIRELESS PCS, LLC - DC – yes yes
484-338 Verizon VERIZON PENNSYLVANIA, INC. – yes yes
484-339 Onvoy ONVOY, LLC - PA – no yes
484-345 Verizon CELLCO PARTNERSHIP DBA VERIZON WIRELESS - PA 2009-09-16 yes yes
484-355 Verizon MCIMETRO ACCESS TRANSMISSION SERVICES LLC - PA 2009-06-04 yes yes
484-388 Verizon CELLCO PARTNERSHIP DBA VERIZON WIRELESS - PA 2008-05-09 yes yes
484-400 LIMITLESS MOBILE, LLC 2001-09-27 no yes
484-509 Comcast COMCAST IP PHONE, LLC 2014-02-05 yes yes
484-512 Verizon CELLCO PARTNERSHIP DBA VERIZON WIRELESS - PA 2016-05-24 yes yes
484-513 T-Mobile D&E/OMNIPOINT WIREL JOINT VENT LP DBA PCS ONE 2016-09-23 yes yes
484-516 AT&T NEW CINGULAR WIRELESS PCS, LLC - DC 2016-09-27 yes yes
484-525 T-Mobile D&E/OMNIPOINT WIREL JOINT VENT LP DBA PCS ONE 2008-06-27 yes yes
484-529 T-Mobile D&E/OMNIPOINT WIREL JOINT VENT LP DBA PCS ONE – no yes
484-577 Verizon CELLCO PARTNERSHIP DBA VERIZON WIRELESS - PA 2011-07-12 yes yes
484-579 Dish BOOST SUBSCRIBERCO L.L.C. 2022-04-08 yes yes
484-599 Verizon CELLCO PARTNERSHIP DBA VERIZON WIRELESS - PA 2007-09-17 yes yes
484-628 Verizon MCIMETRO ACCESS TRANSMISSION SERVICES LLC 2011-11-08 yes yes
484-638 T-Mobile D&E/OMNIPOINT WIREL JOINT VENT LP DBA PCS ONE – yes yes
484-650 Verizon CELLCO PARTNERSHIP DBA VERIZON WIRELESS - PA 2010-07-12 yes yes
484-651 RCN TELECOM SERVICES OF PENNSYLVANIA, INC. – yes yes
484-659 Verizon MCIMETRO ACCESS TRANSMISSION SERVICES LLC 2016-12-28 yes yes
484-663 T-Mobile D&E/OMNIPOINT WIREL JOINT VENT LP DBA PCS ONE 2007-07-09 yes yes
484-706 AT&T NEW CINGULAR WIRELESS PCS, LLC - DC 2008-04-25 yes yes
484-709 Verizon CELLCO PARTNERSHIP DBA VERIZON WIRELESS - PA 2012-08-24 yes yes
484-721 T-Mobile METROPCS, INC. 2011-03-14 yes yes
484-740 HD CARRIER LLC – yes yes
484-755 Verizon CELLCO PARTNERSHIP DBA VERIZON WIRELESS - PA 2014-08-07 yes yes
484-769 T-Mobile D&E/OMNIPOINT WIREL JOINT VENT LP DBA PCS ONE – yes yes
484-772 Verizon MCIMETRO ACCESS TRANSMISSION SERVICES LLC 2010-01-27 yes yes
484-794 T-Mobile D&E/OMNIPOINT WIREL JOINT VENT LP DBA PCS ONE 2001-10-29 yes yes
484-797 T-Mobile D&E/OMNIPOINT WIREL JOINT VENT LP DBA PCS ONE 2007-02-14 yes yes
484-818 Verizon CELLCO PARTNERSHIP DBA VERIZON WIRELESS - PA 2008-01-10 yes yes
484-824 T-Mobile D&E/OMNIPOINT WIREL JOINT VENT LP DBA PCS ONE – yes yes
484-855 T-Mobile D&E/OMNIPOINT WIREL JOINT VENT LP DBA PCS ONE 2008-09-17 yes yes
484-869 Comcast COMCAST IP PHONE, LLC 2016-01-27 yes yes
484-877 Verizon CELLCO PARTNERSHIP DBA VERIZON WIRELESS - PA 2017-11-16 yes yes
484-878 Comcast COMCAST IP PHONE, LLC 2018-05-02 yes yes
484-890 Verizon CELLCO PARTNERSHIP DBA VERIZON WIRELESS - PA 2022-07-19 yes yes
484-926 T-Mobile D&E/OMNIPOINT WIREL JOINT VENT LP DBA PCS ONE 2013-09-12 yes yes
484-955 T-Mobile D&E/OMNIPOINT WIREL JOINT VENT LP DBA PCS ONE 2001-05-29 yes yes
484-987 Comcast COMCAST IP PHONE, LLC 2015-05-27 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

HolderBrandBlocksShare here
D&E/OMNIPOINT WIREL JOINT VENT LP DBA PCS ONE T-Mobile 13 25.5%
CELLCO PARTNERSHIP DBA VERIZON WIRELESS - PA Verizon 13 25.5%
COMCAST IP PHONE, LLC Comcast 4 7.8%
LEVEL 3 COMMUNICATIONS, LLC - PA Lumen 3 5.9%
NEW CINGULAR WIRELESS PCS, LLC - DC AT&T 3 5.9%
MCIMETRO ACCESS TRANSMISSION SERVICES LLC Verizon 3 5.9%
METROPCS, INC. T-Mobile 2 3.9%
LIMITLESS MOBILE, LLC – 2 3.9%
PAETEC ITEL, LLC Windstream 1 2%
WINDSTREAM D & E SYSTEMS, INC. - PA Windstream 1 2%
VERIZON PENNSYLVANIA, INC. Verizon 1 2%
ONVOY, LLC - PA Onvoy 1 2%
MCIMETRO ACCESS TRANSMISSION SERVICES LLC - PA Verizon 1 2%
BOOST SUBSCRIBERCO L.L.C. Dish 1 2%
RCN TELECOM SERVICES OF PENNSYLVANIA, INC. – 1 2%
HD CARRIER LLC – 1 2%

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 READING in area code 484?

51 blocks: 219, 220, 256, 258, 269, 331, 332, 333, 334, 335, 336, 338 and 39 more, all listed in the table above.

Which carriers have numbers in READING?

D&E/OMNIPOINT WIREL JOINT VENT LP DBA PCS ONE (13 blocks), CELLCO PARTNERSHIP DBA VERIZON WIRELESS - PA (13 blocks), COMCAST IP PHONE, LLC (4 blocks), LEVEL 3 COMMUNICATIONS, LLC - PA (3 blocks), NEW CINGULAR WIRELESS PCS, LLC - DC (3 blocks), MCIMETRO ACCESS TRANSMISSION SERVICES LLC (3 blocks). These are the holders on record; the carrier actually serving a given number can differ, because numbers move with their owners.

Is READING 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.

Other rate centers in 484

All 786 prefixes in 484