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

BROCKPORT prefixes in area code 585

NANPA records 6 assigned NXX blocks to rate center BROCKPORT in area code 585, 0.9% 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. 4 holders hold those blocks, the largest being PAETEC ITEL, LLC (2), FRONTIER TELEPHONE OF ROCHESTER, INC. (2), PEERLESS NETWORK OF NEW YORK, LLC - NY (1). The earliest assignment on record here is 2018-02-15 and the most recent 2021-03-02. 4 of them are in thousands-block pooling, so those prefixes are shared between carriers in 1,000-number lots.

6 assigned blocks – 0.9% of 585
4 holders of record
4 of them pooled in 1,000-number lots

Prefixes assigned here

PrefixHolder of recordAssignedPooledIn service
585-391 Windstream PAETEC ITEL, LLC – yes yes
585-395 Frontier FRONTIER TELEPHONE OF ROCHESTER, INC. – no yes
585-431 Windstream PAETEC ITEL, LLC – yes yes
585-637 Frontier FRONTIER TELEPHONE OF ROCHESTER, INC. – no yes
585-639 Peerless PEERLESS NETWORK OF NEW YORK, LLC - NY 2018-02-15 yes yes
585-688 FRACTEL, LLC 2021-03-02 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
PAETEC ITEL, LLC Windstream 2 33.3%
FRONTIER TELEPHONE OF ROCHESTER, INC. Frontier 2 33.3%
PEERLESS NETWORK OF NEW YORK, LLC - NY Peerless 1 16.7%
FRACTEL, LLC – 1 16.7%

Frequently asked

Which prefixes belong to BROCKPORT in area code 585?

6 blocks: 391, 395, 431, 637, 639, 688. The table above gives the holder of each.

Which carriers have numbers in BROCKPORT?

PAETEC ITEL, LLC (2 blocks), FRONTIER TELEPHONE OF ROCHESTER, INC. (2 blocks), PEERLESS NETWORK OF NEW YORK, LLC - NY (1 block), FRACTEL, 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 BROCKPORT 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