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

PHILA prefixes in area code 601

NANPA records 14 assigned NXX blocks to rate center PHILA in area code 601, 1.8% of the 783 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. 8 holders hold those blocks, the largest being BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL (4), NEW CINGULAR WIRELESS PCS, LLC - GA (3), TELEPAK NETWORKS, INC. - MS (2). The earliest assignment on record here is 2001-03-27 and the most recent 2005-03-28. 7 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 315, 573, 680, 769 – overlay codes cover the same geography, so a rate center is served by all of them.

14 assigned blocks – 1.8% of 601
8 holders of record
7 of them pooled in 1,000-number lots

Prefixes assigned here

PrefixHolder of recordAssignedPooledIn service
601-284 Bandwidth BANDWIDTH.COM CLEC, LLC - MS – yes yes
601-389 AT&T BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL – yes yes
601-416 AT&T NEW CINGULAR WIRELESS PCS, LLC - GA – no yes
601-504 AT&T NEW CINGULAR WIRELESS PCS, LLC - GA 2001-03-27 no yes
601-562 AT&T NEW CINGULAR WIRELESS PCS, LLC - GA 2002-02-07 no yes
601-568 Lumen LEVEL 3 COMMUNICATIONS, LLC - MS – yes yes
601-575 CELLULAR SOUTH, INC. 2002-07-12 no yes
601-650 AT&T BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL – yes yes
601-656 AT&T BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL – no yes
601-663 AT&T BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL – yes yes
601-676 TELEPAK NETWORKS, INC. - MS 2003-03-06 no yes
601-728 Verizon CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MS – yes yes
601-781 T-Mobile POWERTEL MEMPHIS LICENSES, INC. 2003-11-11 yes yes
601-836 TELEPAK NETWORKS, INC. - MS 2005-03-28 no 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
BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL AT&T 4 28.6%
NEW CINGULAR WIRELESS PCS, LLC - GA AT&T 3 21.4%
TELEPAK NETWORKS, INC. - MS – 2 14.3%
BANDWIDTH.COM CLEC, LLC - MS Bandwidth 1 7.1%
LEVEL 3 COMMUNICATIONS, LLC - MS Lumen 1 7.1%
CELLULAR SOUTH, INC. – 1 7.1%
CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MS Verizon 1 7.1%
POWERTEL MEMPHIS LICENSES, INC. T-Mobile 1 7.1%

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 PHILA in area code 601?

14 blocks: 284, 389, 416, 504, 562, 568, 575, 650, 656, 663, 676, 728 and 2 more, all listed in the table above.

Which carriers have numbers in PHILA?

BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL (4 blocks), NEW CINGULAR WIRELESS PCS, LLC - GA (3 blocks), TELEPAK NETWORKS, INC. - MS (2 blocks), BANDWIDTH.COM CLEC, LLC - MS (1 block), LEVEL 3 COMMUNICATIONS, LLC - MS (1 block), CELLULAR SOUTH, INC. (1 block). These are the holders on record; the carrier actually serving a given number can differ, because numbers move with their owners.

Is PHILA 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 601

All 783 prefixes in 601