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

CEDARVILLE prefixes in area code 937

NANPA records 4 assigned NXX blocks to rate center CEDARVILLE in area code 937, 0.5% 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. 4 holders hold those blocks, the largest being LEVEL 3 COMMUNICATIONS, LLC - OH (1), OHIO BELL TEL CO (1), TWILIO INTERNATIONAL, INC. (1). The earliest assignment on record here is 2005-03-08 and the most recent 2021-12-03. 4 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 530, 815, 856, 906 – overlay codes cover the same geography, so a rate center is served by all of them.

4 assigned blocks – 0.5% of 937
4 holders of record
4 of them pooled in 1,000-number lots

Prefixes assigned here

PrefixHolder of recordAssignedPooledIn service
937-697 Lumen LEVEL 3 COMMUNICATIONS, LLC - OH 2005-03-08 yes yes
937-766 AT&T OHIO BELL TEL CO – yes yes
937-891 Twilio TWILIO INTERNATIONAL, INC. 2021-12-03 yes yes
937-970 Onvoy ONVOY, LLC - OH 2014-12-23 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
LEVEL 3 COMMUNICATIONS, LLC - OH Lumen 1 25%
OHIO BELL TEL CO AT&T 1 25%
TWILIO INTERNATIONAL, INC. Twilio 1 25%
ONVOY, LLC - OH Onvoy 1 25%

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 CEDARVILLE in area code 937?

4 blocks: 697, 766, 891, 970. The table above gives the holder of each.

Which carriers have numbers in CEDARVILLE?

LEVEL 3 COMMUNICATIONS, LLC - OH (1 block), OHIO BELL TEL CO (1 block), TWILIO INTERNATIONAL, INC. (1 block), ONVOY, LLC - OH (1 block). These are the holders on record; the carrier actually serving a given number can differ, because numbers move with their owners.

Is CEDARVILLE 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