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

FAIRPORT prefixes in area code 585

NANPA records 13 assigned NXX blocks to rate center FAIRPORT in area code 585, 1.9% of the 676 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. 8 holders hold those blocks, the largest being FRONTIER TELEPHONE OF ROCHESTER, INC. (6), MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY (1), BANDWIDTH.COM CLEC, LLC - NY (1). The earliest assignment on record here is 2006-10-05 and the most recent 2023-03-23. 9 of them are in thousands-block pooling, so those prefixes are shared between carriers in 1,000-number lots.

13 assigned blocks – 1.9% of 585
8 holders of record
9 of them pooled in 1,000-number lots

Prefixes assigned here

PrefixHolder of recordAssignedPooledIn service
585-223 Frontier FRONTIER TELEPHONE OF ROCHESTER, INC. – no yes
585-282 Verizon MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY 2009-10-16 yes yes
585-364 Bandwidth BANDWIDTH.COM CLEC, LLC - NY 2011-05-03 yes yes
585-377 Frontier FRONTIER TELEPHONE OF ROCHESTER, INC. – no yes
585-388 Frontier FRONTIER TELEPHONE OF ROCHESTER, INC. – no yes
585-421 Frontier FRONTIER TELEPHONE OF ROCHESTER, INC. – yes yes
585-425 Frontier FRONTIER TELEPHONE OF ROCHESTER, INC. – no yes
585-430 AT&T NEW CINGULAR WIRELESS PCS, LLC - DC 2015-11-09 yes yes
585-598 Windstream PAETEC ITEL, LLC – yes yes
585-618 COMMIO, LLC 2022-03-14 yes yes
585-668 NUSO, LLC 2023-03-23 yes yes
585-678 Frontier FRONTIER TELEPHONE OF ROCHESTER, INC. 2006-10-05 yes yes
585-844 FRACTEL, LLC 2020-10-08 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
FRONTIER TELEPHONE OF ROCHESTER, INC. Frontier 6 46.2%
MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY Verizon 1 7.7%
BANDWIDTH.COM CLEC, LLC - NY Bandwidth 1 7.7%
NEW CINGULAR WIRELESS PCS, LLC - DC AT&T 1 7.7%
PAETEC ITEL, LLC Windstream 1 7.7%
COMMIO, LLC – 1 7.7%
NUSO, LLC – 1 7.7%
FRACTEL, LLC – 1 7.7%

Frequently asked

Which prefixes belong to FAIRPORT in area code 585?

13 blocks: 223, 282, 364, 377, 388, 421, 425, 430, 598, 618, 668, 678 and 1 more, all listed in the table above.

Which carriers have numbers in FAIRPORT?

FRONTIER TELEPHONE OF ROCHESTER, INC. (6 blocks), MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY (1 block), BANDWIDTH.COM CLEC, LLC - NY (1 block), NEW CINGULAR WIRELESS PCS, LLC - DC (1 block), PAETEC ITEL, LLC (1 block), COMMIO, 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 FAIRPORT 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 585

All 676 prefixes in 585