ROCKISLAND prefixes in area code 309
NANPA records 41 assigned NXX blocks to rate center ROCKISLAND in area code 309, 5.2% 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. 12 holders hold those blocks, the largest being ILLINOIS BELL TEL CO (12), T-MOBILE USA, INC. (9), CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL (5). The earliest assignment on record here is 2001-03-16 and the most recent 2024-10-14. 28 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 861, 931 – 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 |
|---|---|---|---|---|
| 309-206 | AT&T ILLINOIS BELL TEL CO | 2011-07-19 | yes | yes |
| 309-230 | Verizon CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL | 2001-12-14 | no | yes |
| 309-235 | Verizon CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL | – | no | yes |
| 309-236 | Verizon CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL | – | no | yes |
| 309-269 | T-Mobile T-MOBILE USA, INC. | – | yes | yes |
| 309-283 | Windstream PAETEC ITEL, LLC | – | yes | yes |
| 309-292 | T-Mobile T-MOBILE USA, INC. | – | no | yes |
| 309-317 | AT&T NEW CINGULAR WIRELESS PCS, LLC - IL | 2017-11-14 | yes | yes |
| 309-350 | T-Mobile T-MOBILE USA, INC. | 2018-06-12 | yes | yes |
| 309-373 | UNITED STATES CELLULAR - IL | – | yes | yes |
| 309-380 | Verizon MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 2024-06-26 | yes | yes |
| 309-400 | AT&T AT&T ENTERPRISES, LLC | 2024-10-14 | yes | yes |
| 309-428 | T-Mobile T-MOBILE USA, INC. | 2008-09-08 | yes | yes |
| 309-429 | Verizon CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL | 2011-08-11 | yes | yes |
| 309-430 | GENESEO COMMUNICATIONS SERVICES, INC. - IL | 2015-03-09 | yes | yes |
| 309-506 | T-Mobile T-MOBILE USA, INC. | 2018-10-04 | yes | yes |
| 309-519 | AT&T NEW CINGULAR WIRELESS PCS, LLC - IL | 2018-10-10 | yes | yes |
| 309-520 | T-Mobile T-MOBILE USA, INC. | 2019-01-04 | yes | yes |
| 309-553 | T-Mobile T-MOBILE USA, INC. | 2019-01-04 | yes | yes |
| 309-558 | AT&T ILLINOIS BELL TEL CO | – | yes | yes |
| 309-592 | AT&T NEW CINGULAR WIRELESS PCS, LLC - IL | 2017-02-23 | yes | yes |
| 309-607 | Onvoy ONVOY, LLC | 2015-03-05 | no | yes |
| 309-631 | T-Mobile T-MOBILE USA, INC. | – | no | yes |
| 309-644 | Lumen LEVEL 3 COMMUNICATIONS, LLC - IL | 2002-05-14 | yes | yes |
| 309-721 | T-Mobile T-MOBILE USA, INC. | 2001-03-16 | yes | yes |
| 309-732 | AT&T ILLINOIS BELL TEL CO | – | yes | yes |
| 309-737 | UNITED STATES CELLULAR - IL | – | yes | yes |
| 309-738 | UNITED STATES CELLULAR - IL | – | yes | yes |
| 309-756 | AT&T ILLINOIS BELL TEL CO | – | yes | yes |
| 309-779 | AT&T ILLINOIS BELL TEL CO | – | yes | yes |
| 309-781 | Verizon CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL | – | no | yes |
| 309-782 | AT&T ILLINOIS BELL TEL CO | – | no | yes |
| 309-786 | AT&T ILLINOIS BELL TEL CO | – | no | yes |
| 309-787 | AT&T ILLINOIS BELL TEL CO | – | no | yes |
| 309-788 | AT&T ILLINOIS BELL TEL CO | – | no | yes |
| 309-793 | AT&T ILLINOIS BELL TEL CO | – | no | yes |
| 309-794 | AT&T ILLINOIS BELL TEL CO | – | no | yes |
| 309-798 | AT&T ILLINOIS BELL TEL CO | – | yes | yes |
| 309-903 | Onvoy ONVOY, LLC | 2020-02-24 | yes | yes |
| 309-930 | NUSO, LLC | 2023-03-14 | yes | yes |
| 309-948 | Lumen LEVEL 3 COMMUNICATIONS, LLC - IL | 2006-02-08 | 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 | 12 | 29.3% |
| T-MOBILE USA, INC. | T-Mobile | 9 | 22% |
| CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL | Verizon | 5 | 12.2% |
| NEW CINGULAR WIRELESS PCS, LLC - IL | AT&T | 3 | 7.3% |
| UNITED STATES CELLULAR - IL | – | 3 | 7.3% |
| ONVOY, LLC | Onvoy | 2 | 4.9% |
| LEVEL 3 COMMUNICATIONS, LLC - IL | Lumen | 2 | 4.9% |
| PAETEC ITEL, LLC | Windstream | 1 | 2.4% |
| MCIMETRO ACCESS TRANSMISSION SERVICES LLC | Verizon | 1 | 2.4% |
| AT&T ENTERPRISES, LLC | AT&T | 1 | 2.4% |
| GENESEO COMMUNICATIONS SERVICES, INC. - IL | – | 1 | 2.4% |
| NUSO, LLC | – | 1 | 2.4% |
Frequently asked
Which prefixes belong to ROCKISLAND in area code 309?
41 blocks: 206, 230, 235, 236, 269, 283, 292, 317, 350, 373, 380, 400 and 29 more, all listed in the table above.
Which carriers have numbers in ROCKISLAND?
ILLINOIS BELL TEL CO (12 blocks), T-MOBILE USA, INC. (9 blocks), CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL (5 blocks), NEW CINGULAR WIRELESS PCS, LLC - IL (3 blocks), UNITED STATES CELLULAR - IL (3 blocks), ONVOY, 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 ROCKISLAND 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.