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
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| Assigned | NPA-NXX | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|
| 315-427 | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY | 6959 | SYRACUSE | NY | |
| 315-428 | VERIZON NEW YORK, INC. | 9104 | SYRACUSE | NY | |
| 315-429 | VERIZON NEW YORK, INC. | 9104 | DOLGEVILLE | NY | |
| 315-430 | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY | 6959 | SYRACUSE | NY | |
| 315-431 | VERIZON NEW YORK, INC. | 9104 | SYRACUSE | NY | |
| 315-432 | VERIZON NEW YORK, INC. | 9104 | SYRACUSE | NY | |
| 315-433 | VERIZON NEW YORK, INC. | 9104 | SYRACUSE | NY | |
| 315-434 | VERIZON NEW YORK, INC. | 9104 | SYRACUSE | NY | |
| 315-435 | VERIZON NEW YORK, INC. | 9104 | SYRACUSE | NY | |
| 315-436 | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | SYRACUSE | NY | |
| 315-437 | VERIZON NEW YORK, INC. | 9104 | SYRACUSE | NY | |
| 315-438 | VERIZON NEW YORK, INC. | 9104 | SYRACUSE | NY | |
| 315-439 | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | SYRACUSE | NY | |
| 315-440 | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | SYRACUSE | NY | |
| 315-441 | SPOK, INC. | 6630 | SYRACUSE | NY | |
| 315-442 | VERIZON NEW YORK, INC. | 9104 | SYRACUSE | NY | |
| 315-443 | VERIZON NEW YORK, INC. | 9104 | SYRACUSE | NY | |
| 315-445 | VERIZON NEW YORK, INC. | 9104 | SYRACUSE | NY | |
| 315-446 | VERIZON NEW YORK, INC. | 9104 | SYRACUSE | NY | |
| 315-447 | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | SYRACUSE | NY | |
| 315-448 | VERIZON NEW YORK, INC. | 9104 | SYRACUSE | NY | |
| 315-449 | VERIZON NEW YORK, INC. | 9104 | SYRACUSE | NY | |
| 315-451 | VERIZON NEW YORK, INC. | 9104 | SYRACUSE | NY | |
| 315-452 | VERIZON NEW YORK, INC. | 9104 | SYRACUSE | NY | |
| 315-453 | VERIZON NEW YORK, INC. | 9104 | SYRACUSE | NY | |
| 315-454 | VERIZON NEW YORK, INC. | 9104 | SYRACUSE | NY | |
| 315-455 | VERIZON NEW YORK, INC. | 9104 | SYRACUSE | NY | |
| 315-456 | VERIZON NEW YORK, INC. | 9104 | SYRACUSE | NY | |
| 315-457 | VERIZON NEW YORK, INC. | 9104 | SYRACUSE | NY | |
| 315-458 | VERIZON NEW YORK, INC. | 9104 | SYRACUSE | NY | |
| 315-459 | VERIZON NEW YORK, INC. | 9104 | SYRACUSE | NY | |
| 315-460 | VERIZON NEW YORK, INC. | 9104 | SYRACUSE | NY | |
| 315-461 | VERIZON NEW YORK, INC. | 9104 | SYRACUSE | NY | |
| 315-462 | ONTARIO TELEPHONE COMPANY, INC. | 0112 | CLIFTONSPG | NY | |
| 315-463 | VERIZON NEW YORK, INC. | 9104 | SYRACUSE | NY | |
| 315-464 | VERIZON NEW YORK, INC. | 9104 | SYRACUSE | NY | |
| 315-465 | CITIZENS TELECOMM CO OF NY DBA FRONTIER COMM OF NY | 0096 | MANNSVILLE | NY | |
| 315-466 | VERIZON NEW YORK, INC. | 9104 | SYRACUSE | NY | |
| 315-467 | SPOK, INC. | 6630 | SYRACUSE | NY | |
| 315-468 | VERIZON NEW YORK, INC. | 9104 | SYRACUSE | NY | |
| 315-469 | VERIZON NEW YORK, INC. | 9104 | SYRACUSE | NY | |
| 315-470 | VERIZON NEW YORK, INC. | 9104 | SYRACUSE | NY | |
| 315-471 | VERIZON NEW YORK, INC. | 9104 | SYRACUSE | NY | |
| 315-472 | VERIZON NEW YORK, INC. | 9104 | SYRACUSE | NY | |
| 315-473 | VERIZON NEW YORK, INC. | 9104 | SYRACUSE | NY | |
| 315-474 | VERIZON NEW YORK, INC. | 9104 | SYRACUSE | NY | |
| 315-475 | VERIZON NEW YORK, INC. | 9104 | SYRACUSE | NY | |
| 315-476 | VERIZON NEW YORK, INC. | 9104 | SYRACUSE | NY | |
| 315-477 | VERIZON NEW YORK, INC. | 9104 | SYRACUSE | NY | |
| 315-478 | VERIZON NEW YORK, INC. | 9104 | SYRACUSE | NY |
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.