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

GREENEVL prefixes in area code 423

NANPA records 20 assigned NXX blocks to rate center GREENEVL in area code 423, 2.6% 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. 8 holders hold those blocks, the largest being UNITED TELEPHONE-SOUTHEAST-TN DBA CENTURYLINK - TN (7), CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TN (5), LEVEL 3 COMMUNICATIONS, LLC - TN (2). The earliest assignment on record here is 2002-03-06 and the most recent 2023-03-02. 13 of them are in thousands-block pooling, so those prefixes are shared between carriers in 1,000-number lots.

20 assigned blocks – 2.6% of 423
8 holders of record
13 of them pooled in 1,000-number lots

Prefixes assigned here

PrefixHolder of recordAssignedPooledIn service
423-278 Lumen LEVEL 3 COMMUNICATIONS, LLC - TN – yes yes
423-329 AT&T NEW CINGULAR WIRELESS PCS, LLC - GA 2002-03-06 yes yes
423-359 Lumen UNITED TELEPHONE-SOUTHEAST-TN DBA CENTURYLINK - TN 2002-08-13 no yes
423-470 Verizon CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TN 2003-07-28 yes yes
423-525 Lumen LEVEL 3 COMMUNICATIONS, LLC - TN 2008-05-14 yes yes
423-552 Verizon CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TN – yes yes
423-588 Verizon CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TN 2010-01-07 yes yes
423-609 Verizon CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TN 2014-08-12 yes yes
423-620 Verizon CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TN – yes yes
423-636 Lumen UNITED TELEPHONE-SOUTHEAST-TN DBA CENTURYLINK - TN – no yes
423-638 Lumen UNITED TELEPHONE-SOUTHEAST-TN DBA CENTURYLINK - TN – no yes
423-639 Lumen UNITED TELEPHONE-SOUTHEAST-TN DBA CENTURYLINK - TN – no yes
423-783 Lumen UNITED TELEPHONE-SOUTHEAST-TN DBA CENTURYLINK - TN – no yes
423-787 Lumen UNITED TELEPHONE-SOUTHEAST-TN DBA CENTURYLINK - TN – no yes
423-798 Lumen UNITED TELEPHONE-SOUTHEAST-TN DBA CENTURYLINK - TN – no yes
423-812 Bandwidth BANDWIDTH.COM CLEC, LLC - TN 2016-08-23 yes yes
423-820 Onvoy ONVOY, LLC - TN 2018-05-17 yes yes
423-823 T-Mobile SUNCOM DBA T-MOBILE USA – yes yes
423-831 NUSO, LLC 2023-03-02 yes yes
423-972 T-Mobile SUNCOM DBA T-MOBILE USA – 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
UNITED TELEPHONE-SOUTHEAST-TN DBA CENTURYLINK - TN Lumen 7 35%
CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TN Verizon 5 25%
LEVEL 3 COMMUNICATIONS, LLC - TN Lumen 2 10%
SUNCOM DBA T-MOBILE USA T-Mobile 2 10%
NEW CINGULAR WIRELESS PCS, LLC - GA AT&T 1 5%
BANDWIDTH.COM CLEC, LLC - TN Bandwidth 1 5%
ONVOY, LLC - TN Onvoy 1 5%
NUSO, LLC – 1 5%

Frequently asked

Which prefixes belong to GREENEVL in area code 423?

20 blocks: 278, 329, 359, 470, 525, 552, 588, 609, 620, 636, 638, 639 and 8 more, all listed in the table above.

Which carriers have numbers in GREENEVL?

UNITED TELEPHONE-SOUTHEAST-TN DBA CENTURYLINK - TN (7 blocks), CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TN (5 blocks), LEVEL 3 COMMUNICATIONS, LLC - TN (2 blocks), SUNCOM DBA T-MOBILE USA (2 blocks), NEW CINGULAR WIRELESS PCS, LLC - GA (1 block), BANDWIDTH.COM CLEC, 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 GREENEVL 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