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

LAFOLLETTE prefixes in area code 423

NANPA records 16 assigned NXX blocks to rate center LAFOLLETTE in area code 423, 2.1% of the 764 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. 9 holders hold those blocks, the largest being BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL (4), LEVEL 3 COMMUNICATIONS, LLC - TN (2), PAETEC ITEL, LLC (2). The earliest assignment on record here is 2002-05-02 and the most recent 2022-03-23. 13 of them are in thousands-block pooling, so those prefixes are shared between carriers in 1,000-number lots.

16 assigned blocks – 2.1% of 423
9 holders of record
13 of them pooled in 1,000-number lots

Prefixes assigned here

PrefixHolder of recordAssignedPooledIn service
423-201 Lumen LEVEL 3 COMMUNICATIONS, LLC - TN 2002-07-18 yes yes
423-352 Windstream PAETEC ITEL, LLC – yes yes
423-374 Onvoy ONVOY, LLC - TN – yes yes
423-377 UNITED STATES CELLULAR - TN – yes yes
423-437 Lumen LEVEL 3 COMMUNICATIONS, LLC - TN 2002-05-02 yes yes
423-449 Windstream PAETEC ITEL, LLC 2002-06-13 yes yes
423-456 Telnyx TELNYX LLC – yes yes
423-494 Verizon CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TN 2003-02-04 no yes
423-562 AT&T BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL – no yes
423-563 AT&T BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL – yes yes
423-566 AT&T BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL – no yes
423-592 UNITED STATES CELLULAR - TN – yes yes
423-871 AT&T NEW CINGULAR WIRELESS PCS, LLC - GA – yes yes
423-907 AT&T BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL – yes yes
423-912 AT&T NEW CINGULAR WIRELESS PCS, LLC - GA – yes yes
423-925 TON80 COMMUNICATIONS, LLC 2022-03-23 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 SOUTH CENTRAL BELL TEL AT&T 4 25%
LEVEL 3 COMMUNICATIONS, LLC - TN Lumen 2 12.5%
PAETEC ITEL, LLC Windstream 2 12.5%
UNITED STATES CELLULAR - TN – 2 12.5%
NEW CINGULAR WIRELESS PCS, LLC - GA AT&T 2 12.5%
ONVOY, LLC - TN Onvoy 1 6.2%
TELNYX LLC Telnyx 1 6.2%
CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TN Verizon 1 6.2%
TON80 COMMUNICATIONS, LLC – 1 6.2%

Frequently asked

Which prefixes belong to LAFOLLETTE in area code 423?

16 blocks: 201, 352, 374, 377, 437, 449, 456, 494, 562, 563, 566, 592 and 4 more, all listed in the table above.

Which carriers have numbers in LAFOLLETTE?

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

Is LAFOLLETTE 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 423

All 764 prefixes in 423