NumberResearchRecent prefix assignments
355 prefixes assigned in the last 30 days · from the daily NANPA CO code file, 09/19/2026
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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Oct 2025
| Assigned | NPA-NXX | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|
| 918-227 | SOUTHWESTERN BELL | 9533 | SAPULPA | OK | |
| 918-228 | ONVOY, LLC - OK | 409F | ALLUWE | OK | |
| 918-229 | PAETEC ITEL, LLC | 829J | SPERRY | OK | |
| 918-230 | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | TULSA | OK | |
| 918-231 | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | TULSA | OK | |
| 918-232 | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | TULSA | OK | |
| 918-233 | SOUTHWESTERN BELL | 9533 | SO CHETOPA | OK | |
| 918-234 | SOUTHWESTERN BELL | 9533 | TULSA | OK | |
| 918-235 | SOUTHWESTERN BELL | 9533 | SALLISAW | OK | |
| 918-237 | SOUTHWESTERN BELL | 9533 | TULSA | OK | |
| 918-238 | TELNYX LLC | 073H | MIAMI | OK | |
| 918-241 | SOUTHWESTERN BELL | 9533 | SAND SPG | OK | |
| 918-242 | CIMARRON TEL. CO. | 1982 | PRUE | OK | |
| 918-243 | CIMARRON TEL. CO. | 1982 | KEYSTONE | OK | |
| 918-244 | UNITED STATES CELLULAR - OK | 6272 | VINITA | OK | |
| 918-245 | SOUTHWESTERN BELL | 9533 | SAND SPG | OK | |
| 918-246 | SOUTHWESTERN BELL | 9533 | SAND SPG | OK | |
| 918-247 | OKLAHOMA COMMUNICATION SYSTEM, INC. | 1984 | KELLYVILLE | OK | |
| 918-248 | SOUTHWESTERN BELL | 9533 | SAPULPA | OK | |
| 918-249 | VALOR TELECOM TX.LP-OK DBA WINDSTREAM COMM SW | 1165 | BROKENARRW | OK | |
| 918-250 | VALOR TELECOM TX.LP-OK DBA WINDSTREAM COMM SW | 1165 | BROKENARRW | OK | |
| 918-251 | VALOR TELECOM TX.LP-OK DBA WINDSTREAM COMM SW | 1165 | BROKENARRW | OK | |
| 918-252 | VALOR TELECOM TX.LP-OK DBA WINDSTREAM COMM SW | 1165 | BROKENARRW | OK | |
| 918-253 | GRAND TEL. CO., INC. | 1994 | JAY | OK | |
| 918-254 | VALOR TELECOM TX.LP-OK DBA WINDSTREAM COMM SW | 1165 | BROKENARRW | OK | |
| 918-255 | SOUTHWESTERN BELL | 9533 | SOCOFFEYVL | OK | |
| 918-256 | SOUTHWESTERN BELL | 9533 | VINITA | OK | |
| 918-257 | SOUTHWESTERN BELL | 9533 | AFTON | OK | |
| 918-258 | VALOR TELECOM TX.LP-OK DBA WINDSTREAM COMM SW | 1165 | BROKENARRW | OK | |
| 918-259 | VALOR TELECOM TX.LP-OK DBA WINDSTREAM COMM SW | 1165 | BROKENARRW | OK | |
| 918-260 | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | TULSA | OK | |
| 918-261 | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | TULSA | OK | |
| 918-262 | COMCAST IP PHONE, LLC | 318J | WATTS | OK | |
| 918-263 | VALOR TELECOM TX.LP-OK DBA WINDSTREAM COMM SW | 1165 | AVANT | OK | |
| 918-266 | SOUTHWESTERN BELL | 9533 | CATOOSA | OK | |
| 918-267 | BEGGS TEL. CO., INC. | 1968 | BEGGS | OK | |
| 918-268 | UNITED STATES CELLULAR - OK | 6272 | HENRYETTA | OK | |
| 918-269 | T-MOBILE USA, INC. | 6529 | TULSA | OK | |
| 918-270 | SOUTHWESTERN BELL | 9533 | TULSA | OK | |
| 918-271 | T-MOBILE USA, INC. | 6529 | TULSA | OK | |
| 918-272 | SOUTHWESTERN BELL | 9533 | OWASSO | OK | |
| 918-273 | SOUTHWESTERN BELL | 9533 | NOWATA | OK | |
| 918-274 | SOUTHWESTERN BELL | 9533 | OWASSO | OK | |
| 918-275 | TOTAH COMMUNICATIONS, INC. | 2030 | TALALA | OK | |
| 918-276 | UNITED STATES CELLULAR - OK | 6272 | VINITA | OK | |
| 918-278 | PAGING TULSA, INC. | 6840 | TULSA | OK | |
| 918-279 | VALOR TELECOM TX.LP-OK DBA WINDSTREAM COMM SW | 1165 | COWETA | OK | |
| 918-280 | SOUTHWESTERN BELL | 9533 | TULSA | OK | |
| 918-281 | TELEPORT COMMUNICATIONS AMERICA OK - LLC | 530C | TULSA | OK | |
| 918-283 | SOUTHWESTERN BELL | 9533 | CLAREMORE | OK |
Source: NANPA CO Code Assignments (Utilized, All States, Public), file date 09/19/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.