W CHICAGO prefixes in area code 630
NANPA records 20 assigned NXX blocks to rate center W CHICAGO in area code 630, 2.6% 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. 9 holders hold those blocks, the largest being NEW CINGULAR WIRELESS PCS, LLC - IL (8), ILLINOIS BELL TEL CO (4), LEVEL 3 COMMUNICATIONS, LLC - IL (2). The earliest assignment on record here is 2001-02-12 and the most recent 2009-11-20. 15 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.
Prefixes assigned here
| Prefix | Holder of record | Assigned | Pooled | In service |
|---|---|---|---|---|
| 630-206 | Lumen LEVEL 3 COMMUNICATIONS, LLC - IL | – | yes | yes |
| 630-231 | AT&T ILLINOIS BELL TEL CO | – | no | yes |
| 630-234 | AT&T NEW CINGULAR WIRELESS PCS, LLC - IL | – | no | yes |
| 630-251 | AT&T NEW CINGULAR WIRELESS PCS, LLC - IL | – | no | yes |
| 630-293 | AT&T ILLINOIS BELL TEL CO | – | no | yes |
| 630-346 | AT&T NEW CINGULAR WIRELESS PCS, LLC - IL | – | yes | yes |
| 630-386 | AT&T NEW CINGULAR WIRELESS PCS, LLC - IL | 2005-07-09 | yes | yes |
| 630-414 | AT&T NEW CINGULAR WIRELESS PCS, LLC - IL | 2006-05-02 | yes | yes |
| 630-440 | T-Mobile T-MOBILE USA, INC. | 2001-02-12 | yes | yes |
| 630-473 | Comcast COMCAST IP PHONE, LLC | 2009-11-20 | yes | yes |
| 630-520 | AT&T TELEPORT COMMUNICATIONS AMERICA, LLC - IL | – | yes | yes |
| 630-562 | AT&T ILLINOIS BELL TEL CO | – | yes | yes |
| 630-621 | Lumen LEVEL 3 COMMUNICATIONS, LLC - IL | – | yes | yes |
| 630-639 | Windstream PAETEC ITEL, LLC | 2001-04-11 | yes | yes |
| 630-779 | AT&T NEW CINGULAR WIRELESS PCS, LLC - IL | – | yes | yes |
| 630-815 | AT&T NEW CINGULAR WIRELESS PCS, LLC - IL | 2007-03-14 | yes | yes |
| 630-818 | Verizon MCIMETRO ACCESS TRANSMISSION SERVICES LLC | – | yes | yes |
| 630-876 | AT&T ILLINOIS BELL TEL CO | – | no | yes |
| 630-877 | AT&T NEW CINGULAR WIRELESS PCS, LLC - IL | 2006-10-12 | yes | yes |
| 630-957 | FIRST COMMUNICATIONS, LLC | 2004-05-21 | 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
| Holder | Brand | Blocks | Share here |
|---|---|---|---|
| NEW CINGULAR WIRELESS PCS, LLC - IL | AT&T | 8 | 40% |
| ILLINOIS BELL TEL CO | AT&T | 4 | 20% |
| LEVEL 3 COMMUNICATIONS, LLC - IL | Lumen | 2 | 10% |
| T-MOBILE USA, INC. | T-Mobile | 1 | 5% |
| COMCAST IP PHONE, LLC | Comcast | 1 | 5% |
| TELEPORT COMMUNICATIONS AMERICA, LLC - IL | AT&T | 1 | 5% |
| PAETEC ITEL, LLC | Windstream | 1 | 5% |
| MCIMETRO ACCESS TRANSMISSION SERVICES LLC | Verizon | 1 | 5% |
| FIRST COMMUNICATIONS, LLC | – | 1 | 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 W CHICAGO in area code 630?
20 blocks: 206, 231, 234, 251, 293, 346, 386, 414, 440, 473, 520, 562 and 8 more, all listed in the table above.
Which carriers have numbers in W CHICAGO?
NEW CINGULAR WIRELESS PCS, LLC - IL (8 blocks), ILLINOIS BELL TEL CO (4 blocks), LEVEL 3 COMMUNICATIONS, LLC - IL (2 blocks), T-MOBILE USA, INC. (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 W CHICAGO 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.