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

SPENCER prefixes in area code 712

NANPA records 11 assigned NXX blocks to rate center SPENCER in area code 712, 1.7% of the 633 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. 7 holders hold those blocks, the largest being CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IA (3), UNITED STATES CELLULAR - IA (2), QWEST CORPORATION (2). The earliest assignment on record here is 2002-10-02 and the most recent 2019-11-26. 8 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 234, 276, 304, 318 – overlay codes cover the same geography, so a rate center is served by all of them.

11 assigned blocks – 1.7% of 712
7 holders of record
8 of them pooled in 1,000-number lots

Prefixes assigned here

PrefixHolder of recordAssignedPooledIn service
712-232 AUREON COMMUNICATIONS, LLC 2013-08-02 yes yes
712-240 UNITED STATES CELLULAR - IA – yes yes
712-260 Verizon CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IA – no yes
712-262 Lumen QWEST CORPORATION – no yes
712-264 Lumen QWEST CORPORATION – yes yes
712-270 UNITED STATES CELLULAR - IA – yes yes
712-346 T-Mobile T-MOBILE USA, INC. 2002-10-02 yes yes
712-363 Verizon CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IA – yes yes
712-514 Verizon CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IA 2019-11-26 yes yes
712-580 SPENCER MUNICIPAL COMMUNICATION UTILITY – no yes
712-584 Verizon MCIMETRO ACCESS TRANSMISSION SERVICES LLC 2005-06-01 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
CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IA Verizon 3 27.3%
UNITED STATES CELLULAR - IA – 2 18.2%
QWEST CORPORATION Lumen 2 18.2%
AUREON COMMUNICATIONS, LLC – 1 9.1%
T-MOBILE USA, INC. T-Mobile 1 9.1%
SPENCER MUNICIPAL COMMUNICATION UTILITY – 1 9.1%
MCIMETRO ACCESS TRANSMISSION SERVICES LLC Verizon 1 9.1%

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 SPENCER in area code 712?

11 blocks: 232, 240, 260, 262, 264, 270, 346, 363, 514, 580, 584. The table above gives the holder of each.

Which carriers have numbers in SPENCER?

CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IA (3 blocks), UNITED STATES CELLULAR - IA (2 blocks), QWEST CORPORATION (2 blocks), AUREON COMMUNICATIONS, LLC (1 block), T-MOBILE USA, INC. (1 block), SPENCER MUNICIPAL COMMUNICATION UTILITY (1 block). These are the holders on record; the carrier actually serving a given number can differ, because numbers move with their owners.

Is SPENCER 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 712

All 633 prefixes in 712