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

FRANKLIN prefixes in area code 937

NANPA records 9 assigned NXX blocks to rate center FRANKLIN in area code 937, 1.2% 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. 6 holders hold those blocks, the largest being OHIO BELL TEL CO (4), MCIMETRO ACCESS TRANSMISSION SERVICES LLC - OH (1), LEVEL 3 TELECOM OF OHIO, LLC - OH (1). The earliest assignment on record here is 2001-02-06 and the most recent 2002-05-15. 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 207, 217, 270, 304 – overlay codes cover the same geography, so a rate center is served by all of them.

9 assigned blocks – 1.2% of 937
6 holders of record
7 of them pooled in 1,000-number lots

Prefixes assigned here

PrefixHolder of recordAssignedPooledIn service
937-514 Verizon MCIMETRO ACCESS TRANSMISSION SERVICES LLC - OH – yes yes
937-550 Lumen LEVEL 3 TELECOM OF OHIO, LLC - OH 2002-05-15 yes yes
937-557 Lumen LEVEL 3 COMMUNICATIONS, LLC - OH 2002-02-28 yes yes
937-704 AT&T OHIO BELL TEL CO – yes yes
937-743 AT&T OHIO BELL TEL CO – no yes
937-746 AT&T OHIO BELL TEL CO – no yes
937-748 AT&T OHIO BELL TEL CO – yes yes
937-790 T-Mobile T-MOBILE USA, INC. 2001-02-06 yes yes
937-806 Windstream PAETEC ITEL, LLC 2001-04-19 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
OHIO BELL TEL CO AT&T 4 44.4%
MCIMETRO ACCESS TRANSMISSION SERVICES LLC - OH Verizon 1 11.1%
LEVEL 3 TELECOM OF OHIO, LLC - OH Lumen 1 11.1%
LEVEL 3 COMMUNICATIONS, LLC - OH Lumen 1 11.1%
T-MOBILE USA, INC. T-Mobile 1 11.1%
PAETEC ITEL, LLC Windstream 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 FRANKLIN in area code 937?

9 blocks: 514, 550, 557, 704, 743, 746, 748, 790, 806. The table above gives the holder of each.

Which carriers have numbers in FRANKLIN?

OHIO BELL TEL CO (4 blocks), MCIMETRO ACCESS TRANSMISSION SERVICES LLC - OH (1 block), LEVEL 3 TELECOM OF OHIO, LLC - OH (1 block), LEVEL 3 COMMUNICATIONS, LLC - OH (1 block), T-MOBILE USA, INC. (1 block), PAETEC ITEL, 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 FRANKLIN 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