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

COFFEYVL prefixes in area code 620

NANPA records 12 assigned NXX blocks to rate center COFFEYVL in area code 620, 1.7% of the 705 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. 6 holders hold those blocks, the largest being SOUTHWESTERN BELL (5), UNITED STATES CELLULAR - KS (2), NEW CINGULAR WIRELESS PCS, LLC - IL (2). The earliest assignment on record here is 2001-06-08 and the most recent 2002-11-18. 11 of them are in thousands-block pooling, so those prefixes are shared between carriers in 1,000-number lots.

12 assigned blocks – 1.7% of 620
6 holders of record
11 of them pooled in 1,000-number lots

Prefixes assigned here

PrefixHolder of recordAssignedPooledIn service
620-251 AT&T SOUTHWESTERN BELL – no yes
620-252 AT&T SOUTHWESTERN BELL – yes yes
620-425 T-Mobile AERIAL COMMUNICATIONS, INC. – yes yes
620-464 AT&T SOUTHWESTERN BELL – yes yes
620-505 UNITED STATES CELLULAR - KS – yes yes
620-515 UNITED STATES CELLULAR - KS – yes yes
620-688 Verizon CELLCO PARTNERSHIP DBA VERIZON WIRELESS - KS 2002-11-18 yes yes
620-709 AT&T SOUTHWESTERN BELL 2001-06-08 yes yes
620-808 Lumen LEVEL 3 COMMUNICATIONS, LLC - KS – yes yes
620-870 AT&T NEW CINGULAR WIRELESS PCS, LLC - IL 2001-08-02 yes yes
620-948 AT&T SOUTHWESTERN BELL – yes yes
620-988 AT&T NEW CINGULAR WIRELESS PCS, LLC - IL 2001-10-04 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
SOUTHWESTERN BELL AT&T 5 41.7%
UNITED STATES CELLULAR - KS – 2 16.7%
NEW CINGULAR WIRELESS PCS, LLC - IL AT&T 2 16.7%
AERIAL COMMUNICATIONS, INC. T-Mobile 1 8.3%
CELLCO PARTNERSHIP DBA VERIZON WIRELESS - KS Verizon 1 8.3%
LEVEL 3 COMMUNICATIONS, LLC - KS Lumen 1 8.3%

Frequently asked

Which prefixes belong to COFFEYVL in area code 620?

12 blocks: 251, 252, 425, 464, 505, 515, 688, 709, 808, 870, 948, 988. The table above gives the holder of each.

Which carriers have numbers in COFFEYVL?

SOUTHWESTERN BELL (5 blocks), UNITED STATES CELLULAR - KS (2 blocks), NEW CINGULAR WIRELESS PCS, LLC - IL (2 blocks), AERIAL COMMUNICATIONS, INC. (1 block), CELLCO PARTNERSHIP DBA VERIZON WIRELESS - KS (1 block), LEVEL 3 COMMUNICATIONS, LLC - KS (1 block). These are the holders on record; the carrier actually serving a given number can differ, because numbers move with their owners.

Is COFFEYVL 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 620

All 705 prefixes in 620