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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Oct 2025
| Assigned | NPA-NXX | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|
| 314-246 | SOUTHWESTERN BELL | 9533 | LADUE | MO | |
| 314-247 | SOUTHWESTERN BELL | 9533 | ST LOUIS | MO | |
| 314-248 | ONVOY, LLC - MO | 093F | MEHLVILLE | MO | |
| 314-249 | T-MOBILE USA, INC. | 6529 | LADUE | MO | |
| 314-252 | TELEPORT COMMUNICATIONS AMERICA, LLC - MO | 7218 | LADUE | MO | |
| 314-253 | SOUTHWESTERN BELL | 9533 | LADUE | MO | |
| 314-255 | XO MISSOURI, INC. | 4774 | ST LOUIS | MO | |
| 314-259 | SOUTHWESTERN BELL | 9533 | ST LOUIS | MO | |
| 314-260 | SOUTHWESTERN BELL | 9533 | ST LOUIS | MO | |
| 314-261 | SOUTHWESTERN BELL | 9533 | ST LOUIS | MO | |
| 314-263 | SOUTHWESTERN BELL | 9533 | ST LOUIS | MO | |
| 314-264 | SOUTHWESTERN BELL | 9533 | LADUE | MO | |
| 314-265 | T-MOBILE USA, INC. | 6529 | LADUE | MO | |
| 314-266 | LEVEL 3 COMMUNICATIONS, LLC - MO | 4932 | LADUE | MO | |
| 314-267 | T-MOBILE USA, INC. | 6529 | ST LOUIS | MO | |
| 314-268 | SOUTHWESTERN BELL | 9533 | ST LOUIS | MO | |
| 314-269 | PAETEC ITEL, LLC | 829J | ST LOUIS | MO | |
| 314-270 | TELEPORT COMMUNICATIONS AMERICA, LLC - MO | 7218 | SAPPINGTON | MO | |
| 314-271 | ONVOY, LLC - MO | 093F | LADUE | MO | |
| 314-272 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MO | 7432 | SAPPINGTON | MO | |
| 314-275 | SOUTHWESTERN BELL | 9533 | CREVECOEUR | MO | |
| 314-276 | T-MOBILE USA, INC. | 6529 | LADUE | MO | |
| 314-277 | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | KIRKWOOD | MO | |
| 314-279 | CHARTER IP ENABLED SERVICES, LLC | 792K | LADUE | MO | |
| 314-280 | T-MOBILE USA, INC. | 6529 | ST LOUIS | MO | |
| 314-282 | BANDWIDTH.COM CLEC, LLC - MO | 993E | ST LOUIS | MO | |
| 314-283 | T-MOBILE USA, INC. | 6529 | LADUE | MO | |
| 314-284 | SOUTHWESTERN BELL | 9533 | ST LOUIS | MO | |
| 314-286 | SOUTHWESTERN BELL | 9533 | ST LOUIS | MO | |
| 314-288 | TELEPORT COMMUNICATIONS AMERICA, LLC - MO | 7218 | KIRKWOOD | MO | |
| 314-289 | SOUTHWESTERN BELL | 9533 | ST LOUIS | MO | |
| 314-290 | SOUTHWESTERN BELL | 9533 | ST LOUIS | MO | |
| 314-291 | SOUTHWESTERN BELL | 9533 | LADUE | MO | |
| 314-292 | AT&T - LOCAL | 7421 | LADUE | MO | |
| 314-293 | SOUTHWESTERN BELL | 9533 | OAKVILLE | MO | |
| 314-294 | AMERICAN MESSAGING SERVICES, LLC | 9748 | LADUE | MO | |
| 314-298 | SOUTHWESTERN BELL | 9533 | LADUE | MO | |
| 314-301 | SOUTHWESTERN BELL | 9533 | LADUE | MO | |
| 314-302 | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MO | 5814 | LADUE | MO | |
| 314-303 | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MO | 5814 | LADUE | MO | |
| 314-304 | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MO | 5814 | LADUE | MO | |
| 314-306 | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MO | 5814 | LADUE | MO | |
| 314-307 | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MO | 5814 | LADUE | MO | |
| 314-308 | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | LADUE | MO | |
| 314-311 | MULTIPLE OCN LISTING | MULT | XXXXXXXXXX | MO | |
| 314-313 | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MO | 5814 | LADUE | MO | |
| 314-315 | ONVOY, LLC - MO | 093F | KIRKWOOD | MO | |
| 314-316 | SOUTHWESTERN BELL | 9533 | LADUE | MO | |
| 314-317 | SOUTHWESTERN BELL | 9533 | CREVECOEUR | MO | |
| 314-318 | SPOK, INC. | 6630 | ST LOUIS | MO |
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.