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

MADISON prefixes in area code 706

NANPA records 11 assigned NXX blocks to rate center MADISON in area code 706, 1.4% of the 777 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. 7 holders hold those blocks, the largest being BELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL (3), LEVEL 3 COMMUNICATIONS, LLC - GA (2), NEW CINGULAR WIRELESS PCS, LLC - GA (2). The earliest assignment on record here is 2001-05-08 and the most recent 2003-06-19. 10 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 203, 207, 256, 304 – overlay codes cover the same geography, so a rate center is served by all of them.

11 assigned blocks – 1.4% of 706
7 holders of record
10 of them pooled in 1,000-number lots

Prefixes assigned here

PrefixHolder of recordAssignedPooledIn service
706-342 AT&T BELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL – yes yes
706-343 AT&T BELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL – yes yes
706-431 Lumen LEVEL 3 COMMUNICATIONS, LLC - GA – yes yes
706-438 Lumen LEVEL 3 COMMUNICATIONS, LLC - GA – yes yes
706-474 AT&T NEW CINGULAR WIRELESS PCS, LLC - GA 2001-05-08 no yes
706-688 Windstream PAETEC ITEL, LLC 2002-06-13 yes yes
706-707 Onvoy ONVOY, LLC - GA – yes yes
706-719 AT&T NEW CINGULAR WIRELESS PCS, LLC - GA – yes yes
706-752 AT&T BELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL – yes yes
706-818 Verizon CELLCO PARTNERSHIP DBA VERIZON WIRELESS - GA 2003-03-07 yes yes
706-997 BROADRIVER COMMUNICATION CORPORATION 2003-06-19 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
BELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL AT&T 3 27.3%
LEVEL 3 COMMUNICATIONS, LLC - GA Lumen 2 18.2%
NEW CINGULAR WIRELESS PCS, LLC - GA AT&T 2 18.2%
PAETEC ITEL, LLC Windstream 1 9.1%
ONVOY, LLC - GA Onvoy 1 9.1%
CELLCO PARTNERSHIP DBA VERIZON WIRELESS - GA Verizon 1 9.1%
BROADRIVER COMMUNICATION CORPORATION – 1 9.1%

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 MADISON in area code 706?

11 blocks: 342, 343, 431, 438, 474, 688, 707, 719, 752, 818, 997. The table above gives the holder of each.

Which carriers have numbers in MADISON?

BELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL (3 blocks), LEVEL 3 COMMUNICATIONS, LLC - GA (2 blocks), NEW CINGULAR WIRELESS PCS, LLC - GA (2 blocks), PAETEC ITEL, LLC (1 block), ONVOY, LLC - GA (1 block), CELLCO PARTNERSHIP DBA VERIZON WIRELESS - 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 MADISON 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 706

All 777 prefixes in 706