GILMAN prefixes in area code 815
NANPA records 3 assigned NXX blocks to rate center GILMAN in area code 815, 0.4% of the 786 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. 3 holders hold those blocks, the largest being ILLINOIS BELL TEL CO (1), LEVEL 3 COMMUNICATIONS, LLC - IL (1), RCN TELECOM SERVICES OF ILLINIOS, INC. - IL (1). The earliest assignment on record here is 2001-12-06 and the most recent 2001-12-06. 3 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 320, 641, 715 – 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 |
|---|---|---|---|---|
| 815-265 | AT&T ILLINOIS BELL TEL CO | – | yes | yes |
| 815-707 | Lumen LEVEL 3 COMMUNICATIONS, LLC - IL | 2001-12-06 | yes | yes |
| 815-783 | 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
| Holder | Brand | Blocks | Share here |
|---|---|---|---|
| ILLINOIS BELL TEL CO | AT&T | 1 | 33.3% |
| LEVEL 3 COMMUNICATIONS, LLC - IL | Lumen | 1 | 33.3% |
| RCN TELECOM SERVICES OF ILLINIOS, INC. - IL | – | 1 | 33.3% |
Frequently asked
Which prefixes belong to GILMAN in area code 815?
3 blocks: 265, 707, 783. The table above gives the holder of each.
Which carriers have numbers in GILMAN?
ILLINOIS BELL TEL CO (1 block), LEVEL 3 COMMUNICATIONS, LLC - IL (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 GILMAN 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.