GRANITE CY prefixes in area code 618
NANPA records 22 assigned NXX blocks to rate center GRANITE CY in area code 618, 2.8% 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. 5 holders hold those blocks, the largest being ILLINOIS BELL TEL CO (9), T-MOBILE USA, INC. (5), NEW CINGULAR WIRELESS PCS, LLC - IL (3). The earliest assignment on record here is 2001-05-30 and the most recent 2023-08-10. 17 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 730 – 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 |
|---|---|---|---|---|
| 618-219 | Windstream PAETEC ITEL, LLC | – | yes | yes |
| 618-225 | AT&T ILLINOIS BELL TEL CO | – | yes | yes |
| 618-373 | AT&T NEW CINGULAR WIRELESS PCS, LLC - IL | 2020-04-08 | yes | yes |
| 618-419 | T-Mobile T-MOBILE USA, INC. | 2015-02-09 | yes | yes |
| 618-451 | AT&T ILLINOIS BELL TEL CO | – | no | yes |
| 618-452 | AT&T ILLINOIS BELL TEL CO | – | no | yes |
| 618-500 | Onvoy ONVOY, LLC | 2017-10-18 | yes | yes |
| 618-501 | Windstream PAETEC ITEL, LLC | 2012-10-31 | yes | yes |
| 618-512 | AT&T ILLINOIS BELL TEL CO | – | yes | yes |
| 618-600 | Onvoy ONVOY, LLC | 2015-09-25 | yes | yes |
| 618-610 | AT&T NEW CINGULAR WIRELESS PCS, LLC - IL | 2002-02-04 | no | yes |
| 618-709 | T-Mobile T-MOBILE USA, INC. | 2001-05-30 | yes | yes |
| 618-794 | AT&T NEW CINGULAR WIRELESS PCS, LLC - IL | 2021-08-31 | yes | yes |
| 618-797 | AT&T ILLINOIS BELL TEL CO | – | yes | yes |
| 618-798 | AT&T ILLINOIS BELL TEL CO | – | yes | yes |
| 618-801 | Onvoy ONVOY, LLC | 2016-08-24 | yes | yes |
| 618-802 | T-Mobile T-MOBILE USA, INC. | 2013-09-20 | yes | yes |
| 618-823 | T-Mobile T-MOBILE USA, INC. | 2009-05-05 | yes | yes |
| 618-876 | AT&T ILLINOIS BELL TEL CO | – | yes | yes |
| 618-877 | AT&T ILLINOIS BELL TEL CO | – | no | yes |
| 618-931 | AT&T ILLINOIS BELL TEL CO | – | no | yes |
| 618-981 | T-Mobile T-MOBILE USA, INC. | 2023-08-10 | 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 | 9 | 40.9% |
| T-MOBILE USA, INC. | T-Mobile | 5 | 22.7% |
| NEW CINGULAR WIRELESS PCS, LLC - IL | AT&T | 3 | 13.6% |
| ONVOY, LLC | Onvoy | 3 | 13.6% |
| PAETEC ITEL, LLC | Windstream | 2 | 9.1% |
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 GRANITE CY in area code 618?
22 blocks: 219, 225, 373, 419, 451, 452, 500, 501, 512, 600, 610, 709 and 10 more, all listed in the table above.
Which carriers have numbers in GRANITE CY?
ILLINOIS BELL TEL CO (9 blocks), T-MOBILE USA, INC. (5 blocks), NEW CINGULAR WIRELESS PCS, LLC - IL (3 blocks), ONVOY, LLC (3 blocks), PAETEC ITEL, LLC (2 blocks). These are the holders on record; the carrier actually serving a given number can differ, because numbers move with their owners.
Is GRANITE CY 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.