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

WESTERNSPG prefixes in area code 708

NANPA records 10 assigned NXX blocks to rate center WESTERNSPG in area code 708, 1.3% of the 784 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 ILLINOIS BELL TEL CO (3), LEVEL 3 COMMUNICATIONS, LLC - IL (1), FIRST COMMUNICATIONS, LLC (1). 8 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 630 – overlay codes cover the same geography, so a rate center is served by all of them.

10 assigned blocks – 1.3% of 708
8 holders of record
8 of them pooled in 1,000-number lots

Prefixes assigned here

PrefixHolder of recordAssignedPooledIn service
708-246 AT&T ILLINOIS BELL TEL CO – no yes
708-260 Lumen LEVEL 3 COMMUNICATIONS, LLC - IL – yes yes
708-286 FIRST COMMUNICATIONS, LLC – yes yes
708-292 Windstream PAETEC ITEL, LLC – yes yes
708-505 Comcast COMCAST IP PHONE, LLC – yes yes
708-550 AT&T TELEPORT COMMUNICATIONS AMERICA, LLC - IL – yes yes
708-678 Verizon MCIMETRO ACCESS TRANSMISSION SERVICES LLC – yes yes
708-783 AT&T ILLINOIS BELL TEL CO – no yes
708-784 AT&T ILLINOIS BELL TEL CO – yes yes
708-859 Onvoy ONVOY, LLC – 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
ILLINOIS BELL TEL CO AT&T 3 30%
LEVEL 3 COMMUNICATIONS, LLC - IL Lumen 1 10%
FIRST COMMUNICATIONS, LLC – 1 10%
PAETEC ITEL, LLC Windstream 1 10%
COMCAST IP PHONE, LLC Comcast 1 10%
TELEPORT COMMUNICATIONS AMERICA, LLC - IL AT&T 1 10%
MCIMETRO ACCESS TRANSMISSION SERVICES LLC Verizon 1 10%
ONVOY, LLC Onvoy 1 10%

Frequently asked

Which prefixes belong to WESTERNSPG in area code 708?

10 blocks: 246, 260, 286, 292, 505, 550, 678, 783, 784, 859. The table above gives the holder of each.

Which carriers have numbers in WESTERNSPG?

ILLINOIS BELL TEL CO (3 blocks), LEVEL 3 COMMUNICATIONS, LLC - IL (1 block), FIRST COMMUNICATIONS, LLC (1 block), PAETEC ITEL, LLC (1 block), COMCAST IP PHONE, LLC (1 block), TELEPORT COMMUNICATIONS AMERICA, LLC - IL (1 block). These are the holders on record; the carrier actually serving a given number can differ, because numbers move with their owners.

Is WESTERNSPG 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 708

All 784 prefixes in 708