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 |
|---|---|---|---|---|---|
| 309-274 | FRONTIER NORTH, INC. - IL | 1015 | CHILLICOTH | IL | |
| 309-275 | T-MOBILE USA, INC. | 6529 | BLOOMINGTN | IL | |
| 309-276 | LEVEL 3 COMMUNICATIONS, LLC - IL | 6115 | PEORIA | IL | |
| 309-277 | PAETEC ITEL, LLC | 829J | MOLINE | IL | |
| 309-278 | PAETEC ITEL, LLC | 829J | EASTMOLINE | IL | |
| 309-279 | LEVEL 3 COMMUNICATIONS, LLC - IL | 6115 | PEORIA | IL | |
| 309-280 | ONVOY, LLC | 224C | PEORIA | IL | |
| 309-282 | PAETEC ITEL, LLC | 829J | PEORIA | IL | |
| 309-283 | PAETEC ITEL, LLC | 829J | ROCKISLAND | IL | |
| 309-284 | FRONTIER NORTH, INC. - IL | 1015 | MORTON | IL | |
| 309-285 | LEVEL 3 COMMUNICATIONS, LLC - IL | 6115 | PEORIA | IL | |
| 309-286 | FRONTIER NORTH, INC. - IL | 1015 | TOULON | IL | |
| 309-287 | METROPCS, INC. | 5562 | BLOOMINGTN | IL | |
| 309-288 | FRONTIER NORTH, INC. - IL | 1015 | MINERAL | IL | |
| 309-289 | BRIGHTSPEED OF ILLINOIS, LLC | 1057 | KNOXVILLE | IL | |
| 309-292 | T-MOBILE USA, INC. | 6529 | ROCKISLAND | IL | |
| 309-293 | MID CENTURY TEL. COOP., INC. | 1054 | ELLISVILLE | IL | |
| 309-294 | LEVEL 3 COMMUNICATIONS, LLC - IL | 6115 | PEORIA | IL | |
| 309-295 | FRONTIER NORTH, INC. - IL | 1015 | MACOMB | IL | |
| 309-296 | LEVEL 3 COMMUNICATIONS, LLC - IL | 6115 | PEORIA | IL | |
| 309-297 | SKYE TELECOM LLC DBA SKYETEL | 622J | GALESBURG | IL | |
| 309-298 | FRONTIER NORTH, INC. - IL | 1015 | MACOMB | IL | |
| 309-299 | T-MOBILE USA, INC. | 6529 | GALESBURG | IL | |
| 309-305 | CENTURYLINK COMMUNICATIONS, LLC | 508J | MINIERAGTN | IL | |
| 309-310 | METROPCS, INC. | 5562 | BLOOMINGTN | IL | |
| 309-311 | MULTIPLE OCN LISTING | MULT | XXXXXXXXXX | IL | |
| 309-312 | ONVOY, LLC | 224C | KEWANEE | IL | |
| 309-313 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - IL | 7196 | MACOMB | IL | |
| 309-314 | T-MOBILE USA, INC. | 6529 | MOLINE | IL | |
| 309-320 | TELNYX LLC | 073H | CAMERON | IL | |
| 309-325 | MCDONOUGH TEL. COOP. | 1047 | SMITHSHIRE | IL | |
| 309-329 | FRONTIER NORTH, INC. - IL | 1015 | ASTORIA | IL | |
| 309-331 | UNITED STATES CELLULAR - IL | 6265 | MACOMB | IL | |
| 309-333 | UNITED STATES CELLULAR - IL | 6265 | MACOMB | IL | |
| 309-334 | WOODHULL COMMUNITY TEL. CO. | 1091 | WOODHULL | IL | |
| 309-335 | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL | 6333 | GALESBURG | IL | |
| 309-337 | UNITED STATES CELLULAR - IL | 6265 | GALESBURG | IL | |
| 309-338 | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL | 6333 | CANTON | IL | |
| 309-339 | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL | 6333 | PEORIA | IL | |
| 309-341 | BRIGHTSPEED OF ILLINOIS, LLC | 1057 | GALESBURG | IL | |
| 309-342 | BRIGHTSPEED OF ILLINOIS, LLC | 1057 | GALESBURG | IL | |
| 309-343 | BRIGHTSPEED OF ILLINOIS, LLC | 1057 | GALESBURG | IL | |
| 309-344 | BRIGHTSPEED OF ILLINOIS, LLC | 1057 | GALESBURG | IL | |
| 309-345 | BRIGHTSPEED OF ILLINOIS, LLC | 1057 | GALESBURG | IL | |
| 309-346 | BRIGHTSPEED OF ILLINOIS, LLC | 1057 | PEKIN | IL | |
| 309-347 | BRIGHTSPEED OF ILLINOIS, LLC | 1057 | PEKIN | IL | |
| 309-348 | BRIGHTSPEED OF ILLINOIS, LLC | 1057 | SOUTHPEKIN | IL | |
| 309-351 | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL | 6333 | GALESBURG | IL | |
| 309-352 | BRIGHTSPEED OF ILLINOIS, LLC | 1057 | GREEN VLY | IL | |
| 309-353 | BRIGHTSPEED OF ILLINOIS, LLC | 1057 | PEKIN | 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.