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

POCONOLAKE prefixes in area code 570

NANPA records 3 assigned NXX blocks to rate center POCONOLAKE in area code 570, 0.4% of the 782 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. 1 holder holds those blocks, the largest being COMMONWEALTH TELEPHONE COMPANY LLC (3). The earliest assignment on record here is 2004-01-09 and the most recent 2004-01-09. 1 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 272 – overlay codes cover the same geography, so a rate center is served by all of them.

3 assigned blocks – 0.4% of 570
1 holders of record
1 of them pooled in 1,000-number lots

Prefixes assigned here

PrefixHolder of recordAssignedPooledIn service
570-355 COMMONWEALTH TELEPHONE COMPANY LLC 2004-01-09 yes yes
570-643 COMMONWEALTH TELEPHONE COMPANY LLC – no yes
570-646 COMMONWEALTH TELEPHONE COMPANY LLC – no 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.

Frequently asked

Which prefixes belong to POCONOLAKE in area code 570?

3 blocks: 355, 643, 646. The table above gives the holder of each.

Which carriers have numbers in POCONOLAKE?

COMMONWEALTH TELEPHONE COMPANY LLC (3 blocks). These are the holders on record; the carrier actually serving a given number can differ, because numbers move with their owners.

Is POCONOLAKE 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 570

All 782 prefixes in 570