NumberResearchRecent prefix assignments
0 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.
New assignments by month
Sep 2026
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Oct 2025
| Assigned | NPA-NXX | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|
| 2026-08-04 | 463-343 | SHELCOMM | 0051 | INDIANAPLS | IN |
| 2026-08-04 | 602-927 | SHELCOMM | 0051 | PHOENIX | AZ |
| 2026-07-30 | 984-418 | SHELCOMM | 0051 | RALEIGH | NC |
| 2026-07-28 | 223-396 | SHELCOMM | 0051 | HARISBGZN1 | PA |
| 2026-07-28 | 272-454 | SHELCOMM | 0051 | SCRANTON | PA |
| 2026-05-20 | 975-212 | SHELCOMM | 0051 | KANSASCITY | MO |
| 2026-05-14 | 206-868 | SHELCOMM | 0051 | SEATTLE | WA |
| 2026-05-13 | 235-224 | SHELCOMM | 0051 | CAPEGIRARD | MO |
| 2026-05-13 | 458-361 | SHELCOMM | 0051 | BEND | OR |
| 2026-05-13 | 557-252 | SHELCOMM | 0051 | ST LOUIS | MO |
| 2026-05-13 | 636-301 | SHELCOMM | 0051 | ST CHARLES | MO |
| 2026-05-13 | 636-470 | SHELCOMM | 0051 | OFALLON | MO |
| 2026-05-13 | 858-446 | SHELCOMM | 0051 | SNDG SNDG | CA |
| 2026-05-13 | 971-536 | SHELCOMM | 0051 | PORTLAND | OR |
| 2026-05-04 | 351-246 | SHELCOMM | 0051 | SALEM | MA |
| 2026-05-04 | 774-575 | SHELCOMM | 0051 | WORCESTER | MA |
| 2026-05-04 | 857-433 | SHELCOMM | 0051 | BOSTON | MA |
| 2026-05-04 | 857-434 | SHELCOMM | 0051 | CAMBRIDGE | MA |
| 2026-04-28 | 339-246 | SHELCOMM | 0051 | HANOVER | MA |
| 2025-09-09 | 329-240 | SHELCOMM | 0051 | SPRING VLY | NY |
| 2025-09-03 | 363-214 | SHELCOMM | 0051 | NASSAUZN01 | NY |
| 2025-09-03 | 631-280 | SHELCOMM | 0051 | WESTHAMPTN | NY |
| 2025-09-03 | 929-826 | SHELCOMM | 0051 | NWYRCYZN03 | NY |
| 2025-09-03 | 934-264 | SHELCOMM | 0051 | RIVERHEAD | NY |
| 2025-08-26 | 914-726 | SHELCOMM | 0051 | WSCHSTZN01 | NY |
| 2024-10-22 | 945-995 | SHELCOMM | 0051 | GRANDPRARI | TX |
| 2024-09-27 | 629-322 | SHELCOMM | 0051 | HARTSVILLE | TN |
| 2024-09-27 | 629-323 | SHELCOMM | 0051 | NASHVILLE | TN |
| 2024-09-27 | 806-843 | SHELCOMM | 0051 | AMARILLO | TX |
| 2024-09-27 | 806-861 | SHELCOMM | 0051 | MCLEAN | TX |
| 2024-09-27 | 931-435 | SHELCOMM | 0051 | LEWISBURG | TN |
| 2024-09-26 | 346-830 | SHELCOMM | 0051 | HOUSTON | TX |
| 2024-09-26 | 346-836 | SHELCOMM | 0051 | SUGAR LAND | TX |
| 2024-09-26 | 346-838 | SHELCOMM | 0051 | HIGHLANDS | TX |
| 2024-09-26 | 725-341 | SHELCOMM | 0051 | LAS VEGAS | NV |
| 2024-09-26 | 725-342 | SHELCOMM | 0051 | LAUGHLIN | NV |
| 2024-09-12 | 369-220 | SHELCOMM | 0051 | SONOMA | CA |
| 2024-09-12 | 369-221 | SHELCOMM | 0051 | SANTA ROSA | CA |
| 2024-09-12 | 510-510 | SHELCOMM | 0051 | FRNK MAIN | CA |
| 2024-09-12 | 628-314 | SHELCOMM | 0051 | SAN RAFAEL | CA |
| 2024-09-12 | 650-221 | SHELCOMM | 0051 | SSNFRNCSCO | CA |
| 2024-09-12 | 669-355 | SHELCOMM | 0051 | SNJS NORTH | CA |
| 2024-09-12 | 669-357 | SHELCOMM | 0051 | SUNNYVALE | CA |
| 2024-09-12 | 831-314 | SHELCOMM | 0051 | SANTA CRUZ | CA |
| 2024-09-12 | 925-541 | SHELCOMM | 0051 | LIVERMORE | CA |
| 2024-09-11 | 656-243 | SHELCOMM | 0051 | ZEPHYRHILS | FL |
| 2024-09-11 | 727-636 | SHELCOMM | 0051 | STPETERSBG | FL |
| 2024-09-11 | 863-369 | SHELCOMM | 0051 | LAKE WALES | FL |
| 2024-09-11 | 941-403 | SHELCOMM | 0051 | SARASOTA | FL |
| 2024-09-10 | 341-255 | SHELCOMM | 0051 | OKLD BKLY | CA |
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.