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

CARROLL prefixes in area code 712

NANPA records 9 assigned NXX blocks to rate center CARROLL in area code 712, 1.4% 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 (2), QWEST CORPORATION (2), MCC TELEPHONY LLC (1). The earliest assignment on record here is 2003-04-04 and the most recent 2020-01-16. 7 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 402, 740 – overlay codes cover the same geography, so a rate center is served by all of them.

9 assigned blocks – 1.4% of 712
7 holders of record
7 of them pooled in 1,000-number lots

Prefixes assigned here

PrefixHolder of recordAssignedPooledIn service
712-220 MCC TELEPHONY LLC 2010-02-16 yes yes
712-292 Verizon CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IA – yes yes
712-513 HD CARRIER LLC 2019-12-02 yes yes
712-634 Bandwidth BANDWIDTH.COM CLEC, LLC - IA 2018-08-28 yes yes
712-771 EDGETEL, LLC 2020-01-16 yes yes
712-775 BTC, INC. - IA 2003-04-04 no yes
712-790 Verizon CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IA – yes yes
712-792 Lumen QWEST CORPORATION – no yes
712-794 Lumen QWEST CORPORATION – 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 2 22.2%
QWEST CORPORATION Lumen 2 22.2%
MCC TELEPHONY LLC – 1 11.1%
HD CARRIER LLC – 1 11.1%
BANDWIDTH.COM CLEC, LLC - IA Bandwidth 1 11.1%
EDGETEL, LLC – 1 11.1%
BTC, INC. - IA – 1 11.1%

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 CARROLL in area code 712?

9 blocks: 220, 292, 513, 634, 771, 775, 790, 792, 794. The table above gives the holder of each.

Which carriers have numbers in CARROLL?

CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IA (2 blocks), QWEST CORPORATION (2 blocks), MCC TELEPHONY LLC (1 block), HD CARRIER LLC (1 block), BANDWIDTH.COM CLEC, LLC - IA (1 block), EDGETEL, LLC (1 block). These are the holders on record; the carrier actually serving a given number can differ, because numbers move with their owners.

Is CARROLL 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