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

BARTLETT prefixes in area code 630

NANPA records 16 assigned NXX blocks to rate center BARTLETT in area code 630, 2.0% 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. 7 holders hold those blocks, the largest being ILLINOIS BELL TEL CO (8), PAETEC ITEL, LLC (2), TELEPORT COMMUNICATIONS AMERICA, LLC - IL (2). The earliest assignment on record here is 2001-04-11 and the most recent 2005-01-12. 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 codes 224, 254, 308, 331 – overlay codes cover the same geography, so a rate center is served by all of them.

16 assigned blocks – 2% of 630
7 holders of record
8 of them pooled in 1,000-number lots

Prefixes assigned here

PrefixHolder of recordAssignedPooledIn service
630-213 AT&T ILLINOIS BELL TEL CO – no yes
630-233 Windstream PAETEC ITEL, LLC – yes yes
630-246 Lumen LEVEL 3 COMMUNICATIONS, LLC - IL – yes yes
630-289 AT&T ILLINOIS BELL TEL CO – no yes
630-372 AT&T ILLINOIS BELL TEL CO – no yes
630-398 AT&T NEW CINGULAR WIRELESS PCS, LLC - IL 2005-01-12 yes yes
630-483 AT&T ILLINOIS BELL TEL CO – no yes
630-504 AT&T TELEPORT COMMUNICATIONS AMERICA, LLC - IL – yes yes
630-540 AT&T ILLINOIS BELL TEL CO – yes yes
630-550 Windstream PAETEC ITEL, LLC 2001-04-11 yes yes
630-736 AT&T ILLINOIS BELL TEL CO – no yes
630-823 Verizon MCIMETRO ACCESS TRANSMISSION SERVICES LLC – yes yes
630-830 AT&T ILLINOIS BELL TEL CO – no yes
630-837 AT&T ILLINOIS BELL TEL CO – no yes
630-855 AT&T TELEPORT COMMUNICATIONS AMERICA, LLC - IL – yes yes
630-965 T-Mobile T-MOBILE USA, INC. – 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.

Who holds the blocks

HolderBrandBlocksShare here
ILLINOIS BELL TEL CO AT&T 8 50%
PAETEC ITEL, LLC Windstream 2 12.5%
TELEPORT COMMUNICATIONS AMERICA, LLC - IL AT&T 2 12.5%
LEVEL 3 COMMUNICATIONS, LLC - IL Lumen 1 6.2%
NEW CINGULAR WIRELESS PCS, LLC - IL AT&T 1 6.2%
MCIMETRO ACCESS TRANSMISSION SERVICES LLC Verizon 1 6.2%
T-MOBILE USA, INC. T-Mobile 1 6.2%

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 BARTLETT in area code 630?

16 blocks: 213, 233, 246, 289, 372, 398, 483, 504, 540, 550, 736, 823 and 4 more, all listed in the table above.

Which carriers have numbers in BARTLETT?

ILLINOIS BELL TEL CO (8 blocks), PAETEC ITEL, LLC (2 blocks), TELEPORT COMMUNICATIONS AMERICA, LLC - IL (2 blocks), LEVEL 3 COMMUNICATIONS, LLC - IL (1 block), NEW CINGULAR WIRELESS PCS, LLC - IL (1 block), MCIMETRO ACCESS TRANSMISSION SERVICES 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 BARTLETT 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 630

All 782 prefixes in 630