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

TWINSBURG prefixes in area code 330

NANPA records 9 assigned NXX blocks to rate center TWINSBURG in area code 330, 1.1% of the 787 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 WINDSTREAM WESTERN RESERVE, INC. (6), VONAGE AMERICA LLC (1), MCIMETRO ACCESS TRANSMISSION SERVICES LLC - OH (1). The earliest assignment on record here is 2002-04-08 and the most recent 2019-10-15. 5 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 code 234 – overlay codes cover the same geography, so a rate center is served by all of them.

9 assigned blocks – 1.1% of 330
4 holders of record
5 of them pooled in 1,000-number lots

Prefixes assigned here

PrefixHolder of recordAssignedPooledIn service
330-293 Vonage VONAGE AMERICA LLC 2019-10-15 yes yes
330-405 Windstream WINDSTREAM WESTERN RESERVE, INC. – no yes
330-425 Windstream WINDSTREAM WESTERN RESERVE, INC. – no yes
330-486 Windstream WINDSTREAM WESTERN RESERVE, INC. – yes yes
330-487 Windstream WINDSTREAM WESTERN RESERVE, INC. – no yes
330-840 Verizon MCIMETRO ACCESS TRANSMISSION SERVICES LLC - OH 2007-02-21 yes yes
330-888 Windstream WINDSTREAM WESTERN RESERVE, INC. 2010-02-02 yes yes
330-963 Windstream WINDSTREAM WESTERN RESERVE, INC. – no yes
330-998 T-Mobile T-MOBILE USA, INC. 2002-04-08 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
WINDSTREAM WESTERN RESERVE, INC. Windstream 6 66.7%
VONAGE AMERICA LLC Vonage 1 11.1%
MCIMETRO ACCESS TRANSMISSION SERVICES LLC - OH Verizon 1 11.1%
T-MOBILE USA, INC. T-Mobile 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 TWINSBURG in area code 330?

9 blocks: 293, 405, 425, 486, 487, 840, 888, 963, 998. The table above gives the holder of each.

Which carriers have numbers in TWINSBURG?

WINDSTREAM WESTERN RESERVE, INC. (6 blocks), VONAGE AMERICA LLC (1 block), MCIMETRO ACCESS TRANSMISSION SERVICES LLC - OH (1 block), T-MOBILE USA, INC. (1 block). These are the holders on record; the carrier actually serving a given number can differ, because numbers move with their owners.

Is TWINSBURG 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 330

All 787 prefixes in 330