NumberResearchRecent prefix assignments
17 prefixes assigned in June 2026 · 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, June 2026
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| Assigned | NPA-NXX | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|
| 2026-06-30 | 350-258 | ONVOY, LLC - CA | 649C | ATWATER | CA |
| 2026-06-30 | 949-938 | ONVOY, LLC - CA | 649C | IRVINE | CA |
| 2026-06-26 | 424-574 | ONVOY, LLC - CA | 649C | SNMN MRVS | CA |
| 2026-06-26 | 628-330 | ONVOY, LLC - CA | 649C | SAN RAFAEL | CA |
| 2026-06-26 | 650-841 | ONVOY, LLC - CA | 649C | MT VIEW | CA |
| 2026-06-26 | 669-376 | ONVOY, LLC - CA | 649C | SNJS WEST | CA |
| 2026-06-26 | 669-378 | ONVOY, LLC - CA | 649C | SUNNYVALE | CA |
| 2026-06-26 | 738-204 | ONVOY, LLC - CA | 649C | LSAN DA 08 | CA |
| 2026-06-26 | 738-205 | ONVOY, LLC - CA | 649C | LSAN DA 10 | CA |
| 2026-06-26 | 738-206 | ONVOY, LLC - CA | 649C | LSAN DA 11 | CA |
| 2026-06-26 | 738-207 | ONVOY, LLC - CA | 649C | LSAN DA 14 | CA |
| 2026-06-26 | 925-582 | ONVOY, LLC - CA | 649C | DUBLN-SNRM | CA |
| 2026-06-01 | 350-998 | ONVOY, LLC - CA | 649C | STOCKTON | CA |
| 2026-06-01 | 650-778 | ONVOY, LLC - CA | 649C | SAN MATEO | CA |
| 2026-06-01 | 650-990 | ONVOY, LLC - CA | 649C | SSNFRNCSCO | CA |
| 2026-06-01 | 661-850 | ONVOY, LLC - CA | 649C | SNCA NHCS | CA |
| 2026-06-01 | 661-991 | ONVOY, LLC - CA | 649C | PLDL PLDL | 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.