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 |
|---|---|---|---|---|---|
| 314-922 | T-MOBILE USA, INC. | 6529 | LADUE | MO | |
| 314-923 | SOUTHWESTERN BELL | 9533 | ST LOUIS | MO | |
| 314-927 | SPOK, INC. | 6630 | ST LOUIS | MO | |
| 314-929 | SPOK, INC. | 6630 | ST LOUIS | MO | |
| 314-933 | SOUTHWESTERN BELL | 9533 | ST LOUIS | MO | |
| 314-934 | PEERLESS NETWORK OF MISSOURI, LLC - MO | 225F | ST LOUIS | MO | |
| 314-935 | SOUTHWESTERN BELL | 9533 | ST LOUIS | MO | |
| 314-938 | T-MOBILE USA, INC. | 6529 | LADUE | MO | |
| 314-941 | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MO | 5814 | LADUE | MO | |
| 314-943 | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MO | 5814 | LADUE | MO | |
| 314-945 | SPOK, INC. | 6630 | ST LOUIS | MO | |
| 314-950 | MO | ||||
| 314-951 | SOUTHWESTERN BELL | 9533 | ST LOUIS | MO | |
| 314-952 | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | KIRKWOOD | MO | |
| 314-953 | SOUTHWESTERN BELL | 9533 | LADUE | MO | |
| 314-954 | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | KIRKWOOD | MO | |
| 314-955 | TELEPORT COMMUNICATIONS AMERICA, LLC - MO | 7218 | ST LOUIS | MO | |
| 314-956 | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MO | 5814 | LADUE | MO | |
| 314-957 | SOUTHWESTERN BELL | 9533 | KIRKWOOD | MO | |
| 314-958 | MO | ||||
| 314-959 | MO | ||||
| 314-960 | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | KIRKWOOD | MO | |
| 314-961 | SOUTHWESTERN BELL | 9533 | LADUE | MO | |
| 314-962 | SOUTHWESTERN BELL | 9533 | LADUE | MO | |
| 314-963 | SOUTHWESTERN BELL | 9533 | LADUE | MO | |
| 314-964 | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MO | 5814 | LADUE | MO | |
| 314-965 | SOUTHWESTERN BELL | 9533 | KIRKWOOD | MO | |
| 314-966 | SOUTHWESTERN BELL | 9533 | KIRKWOOD | MO | |
| 314-968 | SOUTHWESTERN BELL | 9533 | LADUE | MO | |
| 314-971 | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | KIRKWOOD | MO | |
| 314-972 | SOUTHWESTERN BELL | 9533 | LADUE | MO | |
| 314-973 | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MO | 5814 | LADUE | MO | |
| 314-974 | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | KIRKWOOD | MO | |
| 314-975 | SOUTHWESTERN BELL | 9533 | XXXXXXXXXX | MO | |
| 314-976 | MULTIPLE OCN LISTING | MULT | XXXXXXXXXX | MO | |
| 314-977 | SOUTHWESTERN BELL | 9533 | ST LOUIS | MO | |
| 314-982 | SOUTHWESTERN BELL | 9533 | ST LOUIS | MO | |
| 314-983 | SOUTHWESTERN BELL | 9533 | LADUE | MO | |
| 314-984 | SOUTHWESTERN BELL | 9533 | KIRKWOOD | MO | |
| 314-985 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MO | 7432 | CREVECOEUR | MO | |
| 314-989 | SOUTHWESTERN BELL | 9533 | LADUE | MO | |
| 314-990 | SPOK, INC. | 6630 | ST LOUIS | MO | |
| 314-991 | SOUTHWESTERN BELL | 9533 | LADUE | MO | |
| 314-992 | SOUTHWESTERN BELL | 9533 | ST LOUIS | MO | |
| 314-993 | SOUTHWESTERN BELL | 9533 | LADUE | MO | |
| 314-994 | SOUTHWESTERN BELL | 9533 | LADUE | MO | |
| 314-995 | SOUTHWESTERN BELL | 9533 | LADUE | MO | |
| 314-996 | SOUTHWESTERN BELL | 9533 | LADUE | MO | |
| 314-997 | SOUTHWESTERN BELL | 9533 | LADUE | MO | |
| 314-999 | 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.