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

NEWCARLISL prefixes in area code 937

NANPA records 11 assigned NXX blocks to rate center NEWCARLISL in area code 937, 1.4% of the 781 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 - OH (3), NEW CINGULAR WIRELESS PCS, LLC - IL (2), OHIO BELL TEL CO (2). The earliest assignment on record here is 2001-08-08 and the most recent 2024-02-06. 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 326, 574 – overlay codes cover the same geography, so a rate center is served by all of them.

11 assigned blocks – 1.4% of 937
7 holders of record
8 of them pooled in 1,000-number lots

Prefixes assigned here

PrefixHolder of recordAssignedPooledIn service
937-308 Verizon CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH – no yes
937-405 Lumen LEVEL 3 COMMUNICATIONS, LLC - OH 2001-08-08 yes yes
937-543 T-Mobile T-MOBILE USA, INC. – yes yes
937-679 Verizon CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH – yes yes
937-729 AT&T NEW CINGULAR WIRELESS PCS, LLC - IL 2015-02-05 yes yes
937-765 AT&T NEW CINGULAR WIRELESS PCS, LLC - IL – yes yes
937-845 AT&T OHIO BELL TEL CO – no yes
937-846 AT&T OHIO BELL TEL CO – yes yes
937-851 IP HORIZON LLC 2024-02-06 yes yes
937-923 American Messaging AMERICAN MESSAGING SERVICES, LLC – no yes
937-941 Verizon CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 2014-10-08 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 - OH Verizon 3 27.3%
NEW CINGULAR WIRELESS PCS, LLC - IL AT&T 2 18.2%
OHIO BELL TEL CO AT&T 2 18.2%
LEVEL 3 COMMUNICATIONS, LLC - OH Lumen 1 9.1%
T-MOBILE USA, INC. T-Mobile 1 9.1%
IP HORIZON LLC – 1 9.1%
AMERICAN MESSAGING SERVICES, LLC American Messaging 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 NEWCARLISL in area code 937?

11 blocks: 308, 405, 543, 679, 729, 765, 845, 846, 851, 923, 941. The table above gives the holder of each.

Which carriers have numbers in NEWCARLISL?

CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH (3 blocks), NEW CINGULAR WIRELESS PCS, LLC - IL (2 blocks), OHIO BELL TEL CO (2 blocks), LEVEL 3 COMMUNICATIONS, LLC - OH (1 block), T-MOBILE USA, INC. (1 block), IP HORIZON 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 NEWCARLISL 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 937

All 781 prefixes in 937