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

NAPERVILLE prefixes in area code 630

NANPA records 74 assigned NXX blocks to rate center NAPERVILLE in area code 630, 9.5% 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. 10 holders hold those blocks, the largest being ILLINOIS BELL TEL CO (33), T-MOBILE USA, INC. (11), NEW CINGULAR WIRELESS PCS, LLC - IL (7). The earliest assignment on record here is 2001-01-25 and the most recent 2008-08-21. 43 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 331 – overlay codes cover the same geography, so a rate center is served by all of them.

74 assigned blocks – 9.5% of 630
10 holders of record
43 of them pooled in 1,000-number lots

Prefixes assigned here

PrefixHolder of recordAssignedPooledIn service
630-200 Verizon CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 2006-08-30 yes yes
630-201 T-Mobile T-MOBILE USA, INC. 2004-08-20 yes yes
630-210 AT&T TELEPORT COMMUNICATIONS AMERICA, LLC - IL – yes yes
630-219 Lumen LEVEL 3 COMMUNICATIONS, LLC - IL 2006-11-16 yes yes
630-224 AT&T ILLINOIS BELL TEL CO – no yes
630-245 AT&T ILLINOIS BELL TEL CO – yes yes
630-276 Verizon MCIMETRO ACCESS TRANSMISSION SERVICES LLC – yes yes
630-281 Lumen LEVEL 3 COMMUNICATIONS, LLC - IL – yes yes
630-300 Verizon MCIMETRO ACCESS TRANSMISSION SERVICES LLC - IL – yes yes
630-303 Verizon CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 2004-09-02 yes yes
630-305 AT&T ILLINOIS BELL TEL CO – no yes
630-328 AT&T TELEPORT COMMUNICATIONS AMERICA, LLC - IL – yes yes
630-335 T-Mobile T-MOBILE USA, INC. – yes yes
630-352 Verizon CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 2008-02-07 yes yes
630-355 AT&T ILLINOIS BELL TEL CO – no yes
630-357 AT&T ILLINOIS BELL TEL CO – no yes
630-362 T-Mobile T-MOBILE USA, INC. 2002-02-11 no yes
630-364 Lumen LEVEL 3 COMMUNICATIONS, LLC - IL – yes yes
630-369 AT&T ILLINOIS BELL TEL CO – no yes
630-388 Verizon MCIMETRO ACCESS TRANSMISSION SERVICES LLC - IL – yes yes
630-392 T-Mobile T-MOBILE USA, INC. 2004-01-21 yes yes
630-416 AT&T ILLINOIS BELL TEL CO – no yes
630-420 AT&T ILLINOIS BELL TEL CO – no yes
630-428 AT&T ILLINOIS BELL TEL CO – no yes
630-445 AT&T TELEPORT COMMUNICATIONS AMERICA, LLC - IL – yes yes
630-453 Verizon CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 2005-11-21 yes yes
630-470 Verizon CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 2006-04-27 yes yes
630-505 AT&T ILLINOIS BELL TEL CO – yes yes
630-527 AT&T ILLINOIS BELL TEL CO – no yes
630-536 AT&T TELEPORT COMMUNICATIONS AMERICA, LLC - IL – yes yes
630-544 Windstream PAETEC ITEL, LLC 2001-04-11 yes yes
630-548 AT&T ILLINOIS BELL TEL CO – no yes
630-577 AT&T ILLINOIS BELL TEL CO – yes yes
630-579 AT&T ILLINOIS BELL TEL CO – no yes
630-596 Verizon MCIMETRO ACCESS TRANSMISSION SERVICES LLC - IL – yes yes
630-605 AT&T NEW CINGULAR WIRELESS PCS, LLC - IL – no yes
630-615 FIRST COMMUNICATIONS, LLC – yes yes
630-637 AT&T ILLINOIS BELL TEL CO – no yes
630-646 AT&T ILLINOIS BELL TEL CO – yes yes
630-649 AT&T ILLINOIS BELL TEL CO – yes yes
630-664 T-Mobile T-MOBILE USA, INC. 2002-06-10 yes yes
630-687 AT&T NEW CINGULAR WIRELESS PCS, LLC - IL 2004-01-26 yes yes
630-689 Lumen LEVEL 3 COMMUNICATIONS, LLC - IL – yes yes
630-696 Verizon MCIMETRO ACCESS TRANSMISSION SERVICES LLC – yes yes
630-699 AT&T NEW CINGULAR WIRELESS PCS, LLC - IL 2002-08-30 yes yes
630-713 AT&T ILLINOIS BELL TEL CO – no yes
630-717 AT&T ILLINOIS BELL TEL CO – no yes
630-718 AT&T ILLINOIS BELL TEL CO – no yes
630-730 AT&T NEW CINGULAR WIRELESS PCS, LLC - IL 2002-02-28 no yes
630-742 T-Mobile T-MOBILE USA, INC. – yes yes
630-753 AT&T ILLINOIS BELL TEL CO – no yes
630-768 T-Mobile T-MOBILE USA, INC. 2002-10-03 yes yes
630-778 AT&T ILLINOIS BELL TEL CO – no yes
630-780 Verizon CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 2008-08-21 yes yes
630-798 AT&T ILLINOIS BELL TEL CO – no yes
630-799 AT&T ILLINOIS BELL TEL CO – no yes
630-813 AT&T ILLINOIS BELL TEL CO 2002-12-10 yes yes
630-839 Lumen LEVEL 3 COMMUNICATIONS, LLC - IL – no yes
630-848 AT&T ILLINOIS BELL TEL CO – yes yes
630-853 AT&T NEW CINGULAR WIRELESS PCS, LLC - IL 2001-08-06 no yes
630-854 T-Mobile T-MOBILE USA, INC. 2001-01-25 no yes
630-857 AT&T ILLINOIS BELL TEL CO – yes yes
630-864 T-Mobile T-MOBILE USA, INC. 2005-09-01 yes yes
630-881 AT&T NEW CINGULAR WIRELESS PCS, LLC - IL 2001-07-06 no yes
630-885 T-Mobile T-MOBILE USA, INC. 2003-07-14 yes yes
630-901 T-Mobile T-MOBILE USA, INC. 2005-04-28 yes yes
630-904 AT&T ILLINOIS BELL TEL CO – no yes
630-922 AT&T ILLINOIS BELL TEL CO – no yes
630-946 Windstream PAETEC ITEL, LLC – yes yes
630-955 AT&T ILLINOIS BELL TEL CO – yes yes
630-961 AT&T ILLINOIS BELL TEL CO – no yes
630-979 AT&T ILLINOIS BELL TEL CO – no yes
630-983 AT&T ILLINOIS BELL TEL CO – no yes
630-995 AT&T NEW CINGULAR WIRELESS PCS, LLC - IL 2004-08-25 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 33 44.6%
T-MOBILE USA, INC. T-Mobile 11 14.9%
NEW CINGULAR WIRELESS PCS, LLC - IL AT&T 7 9.5%
CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL Verizon 6 8.1%
LEVEL 3 COMMUNICATIONS, LLC - IL Lumen 5 6.8%
TELEPORT COMMUNICATIONS AMERICA, LLC - IL AT&T 4 5.4%
MCIMETRO ACCESS TRANSMISSION SERVICES LLC - IL Verizon 3 4.1%
MCIMETRO ACCESS TRANSMISSION SERVICES LLC Verizon 2 2.7%
PAETEC ITEL, LLC Windstream 2 2.7%
FIRST COMMUNICATIONS, LLC – 1 1.4%

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 NAPERVILLE in area code 630?

74 blocks: 200, 201, 210, 219, 224, 245, 276, 281, 300, 303, 305, 328 and 62 more, all listed in the table above.

Which carriers have numbers in NAPERVILLE?

ILLINOIS BELL TEL CO (33 blocks), T-MOBILE USA, INC. (11 blocks), NEW CINGULAR WIRELESS PCS, LLC - IL (7 blocks), CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL (6 blocks), LEVEL 3 COMMUNICATIONS, LLC - IL (5 blocks), TELEPORT COMMUNICATIONS AMERICA, LLC - IL (4 blocks). These are the holders on record; the carrier actually serving a given number can differ, because numbers move with their owners.

Is NAPERVILLE 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