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

SEYMOUR prefixes in area code 812

NANPA records 23 assigned NXX blocks to rate center SEYMOUR in area code 812, 2.9% of the 785 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. 10 holders hold those blocks, the largest being NEW CINGULAR WIRELESS PCS, LLC - IL (7), CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IN (5), FRONTIER NORTH, INC. - IN (3). The earliest assignment on record here is 2001-04-16 and the most recent 2026-09-08. 14 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, 217, 417, 447 – overlay codes cover the same geography, so a rate center is served by all of them.

23 assigned blocks – 2.9% of 812
10 holders of record
14 of them pooled in 1,000-number lots

Prefixes assigned here

PrefixHolder of recordAssignedPooledIn service
812-216 Verizon CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IN 2001-04-23 no yes
812-271 Onvoy ONVOY, LLC - IN – yes yes
812-405 Lumen LEVEL 3 COMMUNICATIONS, LLC - IN – yes yes
812-440 TPx U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 2026-09-08 yes no
812-498 AT&T NEW CINGULAR WIRELESS PCS, LLC - IL 2001-04-16 no yes
812-515 BLUERIVER COMMUNICATIONS, INC. - IN 2003-01-07 yes yes
812-519 Windstream PAETEC ITEL, LLC 2003-06-02 yes yes
812-521 AT&T NEW CINGULAR WIRELESS PCS, LLC - IL 2001-04-16 no yes
812-522 Frontier FRONTIER NORTH, INC. - IN – no yes
812-523 Frontier FRONTIER NORTH, INC. - IN – no yes
812-524 Frontier FRONTIER NORTH, INC. - IN – no yes
812-525 Verizon CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IN – no yes
812-528 Verizon CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IN – no yes
812-530 Verizon CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IN – yes yes
812-569 Verizon CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IN – no yes
812-580 AT&T NEW CINGULAR WIRELESS PCS, LLC - IL 2001-04-17 yes yes
812-672 Lumen LEVEL 3 COMMUNICATIONS, LLC - IN 2002-07-16 yes yes
812-680 AT&T NEW CINGULAR WIRELESS PCS, LLC - IL – yes yes
812-707 T-Mobile METROPCS, INC. – yes yes
812-861 AT&T NEW CINGULAR WIRELESS PCS, LLC - IL 2001-04-16 yes yes
812-869 AT&T NEW CINGULAR WIRELESS PCS, LLC - IL 2001-04-16 yes yes
812-871 AT&T NEW CINGULAR WIRELESS PCS, LLC - IL 2001-04-16 yes yes
812-927 T-Mobile OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC – 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
NEW CINGULAR WIRELESS PCS, LLC - IL AT&T 7 30.4%
CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IN Verizon 5 21.7%
FRONTIER NORTH, INC. - IN Frontier 3 13%
LEVEL 3 COMMUNICATIONS, LLC - IN Lumen 2 8.7%
ONVOY, LLC - IN Onvoy 1 4.3%
U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS TPx 1 4.3%
BLUERIVER COMMUNICATIONS, INC. - IN – 1 4.3%
PAETEC ITEL, LLC Windstream 1 4.3%
METROPCS, INC. T-Mobile 1 4.3%
OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC T-Mobile 1 4.3%

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 SEYMOUR in area code 812?

23 blocks: 216, 271, 405, 440, 498, 515, 519, 521, 522, 523, 524, 525 and 11 more, all listed in the table above.

Which carriers have numbers in SEYMOUR?

NEW CINGULAR WIRELESS PCS, LLC - IL (7 blocks), CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IN (5 blocks), FRONTIER NORTH, INC. - IN (3 blocks), LEVEL 3 COMMUNICATIONS, LLC - IN (2 blocks), ONVOY, LLC - IN (1 block), U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS (1 block). These are the holders on record; the carrier actually serving a given number can differ, because numbers move with their owners.

Is SEYMOUR 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 812

All 785 prefixes in 812