BIG ROCK prefixes in area code 630
NANPA records 6 assigned NXX blocks to rate center BIG ROCK in area code 630, 0.8% 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. 5 holders hold those blocks, the largest being LEVEL 3 COMMUNICATIONS, LLC - IL (2), RCN TELECOM SERVICES OF ILLINIOS, INC. - IL (1), ILLINOIS BELL TEL CO (1). The earliest assignment on record here is 2001-02-14 and the most recent 2001-02-14. 6 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 276, 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 |
|---|---|---|---|---|
| 630-216 | RCN TELECOM SERVICES OF ILLINIOS, INC. - IL | – | yes | yes |
| 630-318 | Lumen LEVEL 3 COMMUNICATIONS, LLC - IL | – | yes | yes |
| 630-556 | AT&T ILLINOIS BELL TEL CO | – | yes | yes |
| 630-733 | AT&T TELEPORT COMMUNICATIONS AMERICA, LLC - IL | 2001-02-14 | yes | yes |
| 630-884 | Verizon MCIMETRO ACCESS TRANSMISSION SERVICES LLC - IL | – | yes | yes |
| 630-982 | Lumen LEVEL 3 COMMUNICATIONS, LLC - 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
| Holder | Brand | Blocks | Share here |
|---|---|---|---|
| LEVEL 3 COMMUNICATIONS, LLC - IL | Lumen | 2 | 33.3% |
| RCN TELECOM SERVICES OF ILLINIOS, INC. - IL | – | 1 | 16.7% |
| ILLINOIS BELL TEL CO | AT&T | 1 | 16.7% |
| TELEPORT COMMUNICATIONS AMERICA, LLC - IL | AT&T | 1 | 16.7% |
| MCIMETRO ACCESS TRANSMISSION SERVICES LLC - IL | Verizon | 1 | 16.7% |
Frequently asked
Which prefixes belong to BIG ROCK in area code 630?
6 blocks: 216, 318, 556, 733, 884, 982. The table above gives the holder of each.
Which carriers have numbers in BIG ROCK?
LEVEL 3 COMMUNICATIONS, LLC - IL (2 blocks), RCN TELECOM SERVICES OF ILLINIOS, INC. - IL (1 block), ILLINOIS BELL TEL CO (1 block), TELEPORT COMMUNICATIONS AMERICA, LLC - IL (1 block), MCIMETRO ACCESS TRANSMISSION SERVICES 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 BIG ROCK 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.