NumberResearchRecent prefix assignments
369 prefixes assigned in the last 30 days · from the daily NANPA CO code file, 09/18/2026
Which carriers received which NPA-NXX prefixes, and where. Assignments are initial assignments from NANPA records — because of number portability, the current serving carrier of individual numbers may differ. For finer-grained activity, see the thousands-block view above.
Most active assignees, last 30 days
New assignments by month
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| Assigned | NPA-NXX | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|
| 309-211 | MULTIPLE OCN LISTING | MULT | XXXXXXXXXX | IL | |
| 309-212 | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL | 6333 | BLOOMINGTN | IL | |
| 309-213 | LEVEL 3 COMMUNICATIONS, LLC - IL | 6115 | PEORIA | IL | |
| 309-214 | LEVEL 3 COMMUNICATIONS, LLC - IL | 6115 | PEORIA | IL | |
| 309-215 | LEVEL 3 COMMUNICATIONS, LLC - IL | 6115 | PEORIA | IL | |
| 309-216 | LEVEL 3 COMMUNICATIONS, LLC - IL | 6115 | PEORIA | IL | |
| 309-218 | LEVEL 3 COMMUNICATIONS, LLC - IL | 6115 | PEORIA | IL | |
| 309-219 | UNITED STATES CELLULAR - IL | 6265 | PEORIA | IL | |
| 309-221 | UNITED STATES CELLULAR - IL | 6265 | GALESBURG | IL | |
| 309-222 | AT&T - LOCAL | 7421 | PEORIA | IL | |
| 309-224 | UNITED STATES CELLULAR - IL | 6265 | PEORIA | IL | |
| 309-226 | LEVEL 3 COMMUNICATIONS, LLC - IL | 6115 | CANTON | IL | |
| 309-227 | CITIZENS TELECOM CO ILLINOIS-FRONTIER CITIZENS -IL | 1183 | CORDOVA | IL | |
| 309-229 | AT&T - LOCAL | 7421 | PEORIA | IL | |
| 309-231 | UNITED STATES CELLULAR - IL | 6265 | PEORIA | IL | |
| 309-232 | UNITED STATES CELLULAR - IL | 6265 | PEORIA | IL | |
| 309-234 | FRONTIER COMMUNICATIONS OF ORION, INC. | 1067 | ORION | IL | |
| 309-235 | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL | 6333 | ROCKISLAND | IL | |
| 309-236 | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL | 6333 | ROCKISLAND | IL | |
| 309-237 | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | BUSHNELL | IL | |
| 309-238 | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL | 6333 | WYOMING | IL | |
| 309-241 | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL | 6333 | SOUTHPEKIN | IL | |
| 309-242 | T-MOBILE USA, INC. | 6529 | BLOOMINGTN | IL | |
| 309-243 | FRONTIER NORTH, INC. - IL | 1015 | DUNLAP | IL | |
| 309-244 | ILLINOIS BELL TEL CO | 9329 | DELAVAN | IL | |
| 309-245 | ILLINOIS BELL TEL CO | 9329 | FARMINGTON | IL | |
| 309-246 | BRIGHTSPEED OF ILLINOIS, LLC | 1057 | LACON | IL | |
| 309-247 | ILLINOIS BELL TEL CO | 9329 | SAN JOSE | IL | |
| 309-248 | FRONTIER NORTH, INC. - IL | 1015 | WASHBURN | IL | |
| 309-249 | FRONTIER NORTH, INC. - IL | 1015 | EDELSTEIN | IL | |
| 309-251 | UNITED STATES CELLULAR - IL | 6265 | PEORIA | IL | |
| 309-252 | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL | 6333 | MACOMB | IL | |
| 309-253 | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL | 6333 | PEORIA | IL | |
| 309-254 | MCDONOUGH TEL. COOP. | 1047 | INDUSTRY | IL | |
| 309-255 | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL | 6333 | MACOMB | IL | |
| 309-256 | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL | 6333 | PEORIA | IL | |
| 309-257 | MCDONOUGH TEL. COOP. | 1047 | LITTLETON | IL | |
| 309-258 | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL | 6333 | PEORIA | IL | |
| 309-259 | ONVOY SPECTRUM, LLC | 624H | MACOMB | IL | |
| 309-261 | T-MOBILE USA, INC. | 6529 | BLOOMINGTN | IL | |
| 309-262 | T-MOBILE USA, INC. | 6529 | BLOOMINGTN | IL | |
| 309-263 | FRONTIER NORTH, INC. - IL | 1015 | MORTON | IL | |
| 309-264 | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL | 6333 | PEORIA | IL | |
| 309-265 | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL | 6333 | PEORIA | IL | |
| 309-266 | FRONTIER NORTH, INC. - IL | 1015 | MORTON | IL | |
| 309-267 | UNITED STATES CELLULAR - IL | 6265 | PEKIN | IL | |
| 309-268 | FRONTIER NORTH, INC. - IL | 1015 | BLOOMINGTN | IL | |
| 309-269 | T-MOBILE USA, INC. | 6529 | ROCKISLAND | IL | |
| 309-272 | SKYE TELECOM LLC DBA SKYETEL | 622J | PEORIA | IL | |
| 309-273 | LEVEL 3 COMMUNICATIONS, LLC - IL | 6115 | PEORIA | IL |
Source: NANPA CO Code Assignments (Utilized, All States, Public), file date 09/18/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.