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

PITTSBURG prefixes in area code 620

NANPA records 15 assigned NXX blocks to rate center PITTSBURG in area code 620, 2.1% 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. 9 holders hold those blocks, the largest being SOUTHWESTERN BELL (5), UNITED STATES CELLULAR - KS (2), AERIAL COMMUNICATIONS, INC. (2). The earliest assignment on record here is 2001-06-05 and the most recent 2024-04-12. 13 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 417, 430, 603, 618 – overlay codes cover the same geography, so a rate center is served by all of them.

15 assigned blocks – 2.1% of 620
9 holders of record
13 of them pooled in 1,000-number lots

Prefixes assigned here

PrefixHolder of recordAssignedPooledIn service
620-230 AT&T SOUTHWESTERN BELL – no yes
620-231 AT&T SOUTHWESTERN BELL – no yes
620-232 AT&T SOUTHWESTERN BELL – yes yes
620-235 AT&T SOUTHWESTERN BELL – yes yes
620-240 AT&T SOUTHWESTERN BELL – yes yes
620-249 UNITED STATES CELLULAR - KS – yes yes
620-308 Comcast COMCAST IP PHONE, LLC – yes yes
620-404 UNITED STATES CELLULAR - KS – yes yes
620-619 AT&T TELEPORT COMMUNICATIONS AMERICA, LLC - KS 2024-04-12 yes yes
620-670 Lumen LEVEL 3 COMMUNICATIONS, LLC - KS 2002-04-29 yes yes
620-687 Verizon CELLCO PARTNERSHIP DBA VERIZON WIRELESS - KS 2002-11-18 yes yes
620-704 AT&T NEW CINGULAR WIRELESS PCS, LLC - IL 2001-06-05 yes yes
620-719 T-Mobile AERIAL COMMUNICATIONS, INC. 2001-11-28 yes yes
620-822 FRACTEL, LLC 2021-07-06 yes yes
620-875 T-Mobile AERIAL COMMUNICATIONS, INC. – 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 33.3%
UNITED STATES CELLULAR - KS – 2 13.3%
AERIAL COMMUNICATIONS, INC. T-Mobile 2 13.3%
COMCAST IP PHONE, LLC Comcast 1 6.7%
TELEPORT COMMUNICATIONS AMERICA, LLC - KS AT&T 1 6.7%
LEVEL 3 COMMUNICATIONS, LLC - KS Lumen 1 6.7%
CELLCO PARTNERSHIP DBA VERIZON WIRELESS - KS Verizon 1 6.7%
NEW CINGULAR WIRELESS PCS, LLC - IL AT&T 1 6.7%
FRACTEL, LLC – 1 6.7%

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 PITTSBURG in area code 620?

15 blocks: 230, 231, 232, 235, 240, 249, 308, 404, 619, 670, 687, 704 and 3 more, all listed in the table above.

Which carriers have numbers in PITTSBURG?

SOUTHWESTERN BELL (5 blocks), UNITED STATES CELLULAR - KS (2 blocks), AERIAL COMMUNICATIONS, INC. (2 blocks), COMCAST IP PHONE, LLC (1 block), TELEPORT COMMUNICATIONS AMERICA, LLC - 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 PITTSBURG 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