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

CUMMING prefixes in area code 770

NANPA records 12 assigned NXX blocks to rate center CUMMING in area code 770, 1.5% 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. 4 holders hold those blocks, the largest being BELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL (8), BANDWIDTH.COM CLEC, LLC - GA (2), TELEPORT COMMUNICATIONS AMERICA, LLC - GA (1). The earliest assignment on record here is 2006-04-27 and the most recent 2022-05-06. 5 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 470, 678, 943 – overlay codes cover the same geography, so a rate center is served by all of them.

12 assigned blocks – 1.5% of 770
4 holders of record
5 of them pooled in 1,000-number lots

Prefixes assigned here

PrefixHolder of recordAssignedPooledIn service
770-203 Bandwidth BANDWIDTH.COM CLEC, LLC - GA 2013-04-11 yes yes
770-205 AT&T BELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL – no yes
770-292 AT&T BELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL 2006-04-27 yes yes
770-406 AT&T TELEPORT COMMUNICATIONS AMERICA, LLC - GA – yes yes
770-744 Bandwidth BANDWIDTH.COM CLEC, LLC - GA 2010-10-08 yes yes
770-762 Onvoy ONVOY, LLC - GA 2022-05-06 yes yes
770-781 AT&T BELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL – no yes
770-844 AT&T BELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL – no yes
770-886 AT&T BELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL – no yes
770-887 AT&T BELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL – no yes
770-888 AT&T BELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL – no yes
770-889 AT&T BELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL – 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 SOUTHERN BELL TEL & TEL AT&T 8 66.7%
BANDWIDTH.COM CLEC, LLC - GA Bandwidth 2 16.7%
TELEPORT COMMUNICATIONS AMERICA, LLC - GA AT&T 1 8.3%
ONVOY, LLC - GA Onvoy 1 8.3%

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 CUMMING in area code 770?

12 blocks: 203, 205, 292, 406, 744, 762, 781, 844, 886, 887, 888, 889. The table above gives the holder of each.

Which carriers have numbers in CUMMING?

BELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL (8 blocks), BANDWIDTH.COM CLEC, LLC - GA (2 blocks), TELEPORT COMMUNICATIONS AMERICA, LLC - GA (1 block), ONVOY, LLC - GA (1 block). These are the holders on record; the carrier actually serving a given number can differ, because numbers move with their owners.

Is CUMMING 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 770

All 785 prefixes in 770