NumberResearchRecent prefix assignments
17 prefixes assigned in December 2025 · 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, December 2025
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| Assigned | NPA-NXX | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|
| 2025-12-23 | 738-222 | ONVOY, LLC - CA | 649C | LSAN DA 06 | CA |
| 2025-12-23 | 738-444 | ONVOY, LLC - CA | 649C | LSAN DA 12 | CA |
| 2025-12-23 | 738-529 | ONVOY, LLC - CA | 649C | LSAN DA 03 | CA |
| 2025-12-23 | 738-666 | ONVOY, LLC - CA | 649C | MONTEBELLO | CA |
| 2025-12-23 | 738-800 | ONVOY, LLC - CA | 649C | LSAN DA 04 | CA |
| 2025-12-23 | 738-900 | ONVOY, LLC - CA | 649C | LSAN DA 05 | CA |
| 2025-12-22 | 369-333 | ONVOY, LLC - CA | 649C | LOLETA | CA |
| 2025-12-22 | 369-666 | ONVOY, LLC - CA | 649C | MENDOCINO | CA |
| 2025-12-22 | 559-559 | ONVOY, LLC - CA | 649C | CHOWCHILLA | CA |
| 2025-12-18 | 369-239 | ONVOY, LLC - CA | 649C | PTLM SWIFT | CA |
| 2025-12-18 | 949-890 | ONVOY, LLC - CA | 649C | TRABUCO | CA |
| 2025-12-12 | 350-255 | ONVOY, LLC - CA | 649C | MANTECA | CA |
| 2025-12-12 | 350-256 | ONVOY, LLC - CA | 649C | MODESTO | CA |
| 2025-12-12 | 840-287 | ONVOY, LLC - CA | 649C | MARSHALL | CA |
| 2025-12-11 | 369-238 | ONVOY, LLC - CA | 649C | HEALDSBURG | CA |
| 2025-12-11 | 738-203 | ONVOY, LLC - CA | 649C | LSAN DA 13 | CA |
| 2025-12-11 | 818-607 | ONVOY, LLC - CA | 649C | CANOGAPARK | 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.