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

BEECHER prefixes in area code 708

NANPA records 7 assigned NXX blocks to rate center BEECHER in area code 708, 0.9% 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. 6 holders hold those blocks, the largest being LEVEL 3 COMMUNICATIONS, LLC - IL (2), ONVOY, LLC (1), AT&T ENTERPRISES, LLC (1). The earliest assignment on record here is 2009-11-24 and the most recent 2009-11-24. 7 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 464 – overlay codes cover the same geography, so a rate center is served by all of them.

7 assigned blocks – 0.9% of 708
6 holders of record
7 of them pooled in 1,000-number lots

Prefixes assigned here

PrefixHolder of recordAssignedPooledIn service
708-231 Lumen LEVEL 3 COMMUNICATIONS, LLC - IL – yes yes
708-433 Onvoy ONVOY, LLC – yes yes
708-584 AT&T AT&T ENTERPRISES, LLC 2009-11-24 yes yes
708-787 Lumen CENTURYLINK COMMUNICATIONS, LLC – yes yes
708-810 Lumen LEVEL 3 COMMUNICATIONS, LLC - IL – yes yes
708-946 AT&T ILLINOIS BELL TEL CO – yes yes
708-961 RCN TELECOM SERVICES OF ILLINIOS, INC. - IL – 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
LEVEL 3 COMMUNICATIONS, LLC - IL Lumen 2 28.6%
ONVOY, LLC Onvoy 1 14.3%
AT&T ENTERPRISES, LLC AT&T 1 14.3%
CENTURYLINK COMMUNICATIONS, LLC Lumen 1 14.3%
ILLINOIS BELL TEL CO AT&T 1 14.3%
RCN TELECOM SERVICES OF ILLINIOS, INC. - IL – 1 14.3%

Frequently asked

Which prefixes belong to BEECHER in area code 708?

7 blocks: 231, 433, 584, 787, 810, 946, 961. The table above gives the holder of each.

Which carriers have numbers in BEECHER?

LEVEL 3 COMMUNICATIONS, LLC - IL (2 blocks), ONVOY, LLC (1 block), AT&T ENTERPRISES, LLC (1 block), CENTURYLINK COMMUNICATIONS, LLC (1 block), ILLINOIS BELL TEL CO (1 block), RCN TELECOM SERVICES OF ILLINIOS, INC. - 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 BEECHER 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