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

SPENCERPT prefixes in area code 585

NANPA records 7 assigned NXX blocks to rate center SPENCERPT in area code 585, 1.0% 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 OGDEN TELCO NY DBA FRONTIER OGDEN TELEPHONE CO (3), ONVOY, LLC- NY (2), CENTURYLINK COMMUNICATIONS, LLC (1). The earliest assignment on record here is 2002-02-21 and the most recent 2024-06-17. 4 of them are in thousands-block pooling, so those prefixes are shared between carriers in 1,000-number lots.

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

Prefixes assigned here

PrefixHolder of recordAssignedPooledIn service
585-349 Frontier OGDEN TELCO NY DBA FRONTIER OGDEN TELEPHONE CO – no yes
585-352 Frontier OGDEN TELCO NY DBA FRONTIER OGDEN TELEPHONE CO – no yes
585-488 Lumen CENTURYLINK COMMUNICATIONS, LLC – yes yes
585-564 Onvoy ONVOY, LLC- NY 2021-05-25 yes yes
585-594 Frontier OGDEN TELCO NY DBA FRONTIER OGDEN TELEPHONE CO – no yes
585-617 Windstream PAETEC ITEL, LLC 2002-02-21 yes yes
585-761 Onvoy ONVOY, LLC- NY 2024-06-17 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
OGDEN TELCO NY DBA FRONTIER OGDEN TELEPHONE CO Frontier 3 42.9%
ONVOY, LLC- NY Onvoy 2 28.6%
CENTURYLINK COMMUNICATIONS, LLC Lumen 1 14.3%
PAETEC ITEL, LLC Windstream 1 14.3%

Frequently asked

Which prefixes belong to SPENCERPT in area code 585?

7 blocks: 349, 352, 488, 564, 594, 617, 761. The table above gives the holder of each.

Which carriers have numbers in SPENCERPT?

OGDEN TELCO NY DBA FRONTIER OGDEN TELEPHONE CO (3 blocks), ONVOY, LLC- NY (2 blocks), CENTURYLINK COMMUNICATIONS, LLC (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 SPENCERPT 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