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

CATASAUQUA prefixes in area code 610

NANPA records 8 assigned NXX blocks to rate center CATASAUQUA in area code 610, 1.0% 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. 6 holders hold those blocks, the largest being VERIZON PENNSYLVANIA, INC. (3), SERVICE ELECTRIC TELEPHONE COMPANY, LLC (1), RCN TELECOM SERVICES OF PENNSYLVANIA, INC. (1). 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 codes 484, 835 – overlay codes cover the same geography, so a rate center is served by all of them.

8 assigned blocks – 1% of 610
6 holders of record
5 of them pooled in 1,000-number lots

Prefixes assigned here

PrefixHolder of recordAssignedPooledIn service
610-231 Verizon VERIZON PENNSYLVANIA, INC. – no yes
610-264 Verizon VERIZON PENNSYLVANIA, INC. – no yes
610-266 Verizon VERIZON PENNSYLVANIA, INC. – no yes
610-403 SERVICE ELECTRIC TELEPHONE COMPANY, LLC – yes yes
610-443 RCN TELECOM SERVICES OF PENNSYLVANIA, INC. – yes yes
610-465 Verizon MCIMETRO ACCESS TRANSMISSION SERVICES LLC – yes yes
610-596 Lumen LEVEL 3 COMMUNICATIONS, LLC - PA – yes yes
610-686 AT&T AT&T - LOCAL – 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
VERIZON PENNSYLVANIA, INC. Verizon 3 37.5%
SERVICE ELECTRIC TELEPHONE COMPANY, LLC – 1 12.5%
RCN TELECOM SERVICES OF PENNSYLVANIA, INC. – 1 12.5%
MCIMETRO ACCESS TRANSMISSION SERVICES LLC Verizon 1 12.5%
LEVEL 3 COMMUNICATIONS, LLC - PA Lumen 1 12.5%
AT&T - LOCAL AT&T 1 12.5%

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 CATASAUQUA in area code 610?

8 blocks: 231, 264, 266, 403, 443, 465, 596, 686. The table above gives the holder of each.

Which carriers have numbers in CATASAUQUA?

VERIZON PENNSYLVANIA, INC. (3 blocks), SERVICE ELECTRIC TELEPHONE COMPANY, LLC (1 block), RCN TELECOM SERVICES OF PENNSYLVANIA, INC. (1 block), MCIMETRO ACCESS TRANSMISSION SERVICES LLC (1 block), LEVEL 3 COMMUNICATIONS, LLC - PA (1 block), AT&T - LOCAL (1 block). These are the holders on record; the carrier actually serving a given number can differ, because numbers move with their owners.

Is CATASAUQUA 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 610

All 782 prefixes in 610