NumberResearchRecent prefix assignments
27 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
Sep 2026
Aug 2026
Jul 2026
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Dec 2025
Nov 2025
Oct 2025
| Assigned | NPA-NXX | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|
| 917-392 | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | NWYRCYZN01 | NY | |
| 917-399 | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | NWYRCYZN01 | NY | |
| 917-420 | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | NWYRCYZN01 | NY | |
| 917-428 | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | NWYRCYZN01 | NY | |
| 917-434 | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | NWYRCYZN01 | NY | |
| 917-435 | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | NWYRCYZN10 | NY | |
| 917-445 | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | NWYRCYZN01 | NY | |
| 917-446 | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | NWYRCYZN01 | NY | |
| 917-455 | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | NWYRCYZN01 | NY | |
| 917-488 | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | NWYRCYZN01 | NY | |
| 917-499 | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | NWYRCYZN01 | NY | |
| 917-513 | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | NWYRCYZN01 | NY | |
| 917-514 | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | NWYRCYZN01 | NY | |
| 917-515 | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | NWYRCYZN10 | NY | |
| 917-520 | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | NWYRCYZN01 | NY | |
| 917-528 | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | NWYRCYZN01 | NY | |
| 917-539 | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | NWYRCYZN01 | NY | |
| 917-543 | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | NWYRCYZN01 | NY | |
| 917-544 | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | NWYRCYZN01 | NY | |
| 917-545 | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | NWYRCYZN01 | NY | |
| 917-558 | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | NWYRCYZN01 | NY | |
| 917-561 | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | NWYRCYZN10 | NY | |
| 917-562 | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | NWYRCYZN10 | NY | |
| 917-573 | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | NWYRCYZN01 | NY | |
| 917-587 | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | NWYRCYZN01 | NY | |
| 917-592 | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | NWYRCYZN01 | NY | |
| 917-593 | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | NWYRCYZN01 | NY | |
| 917-595 | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | NWYRCYZN01 | NY | |
| 917-601 | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | NWYRCYZN10 | NY | |
| 917-602 | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | NWYRCYZN10 | NY | |
| 917-603 | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | NWYRCYZN10 | NY | |
| 917-605 | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | NWYRCYZN01 | NY | |
| 917-628 | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | NWYRCYZN01 | NY | |
| 917-655 | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | NWYRCYZN01 | NY | |
| 917-657 | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | NWYRCYZN01 | NY | |
| 917-664 | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | NWYRCYZN01 | NY | |
| 917-678 | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | NWYRCYZN01 | NY | |
| 917-679 | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | NWYRCYZN01 | NY | |
| 917-680 | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | NWYRCYZN10 | NY | |
| 917-683 | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | NWYRCYZN08 | NY | |
| 917-684 | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | NWYRCYZN01 | NY | |
| 917-689 | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | NWYRCYZN01 | NY | |
| 917-690 | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | NWYRCYZN01 | NY | |
| 917-691 | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | NWYRCYZN01 | NY | |
| 917-704 | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | NWYRCYZN10 | NY | |
| 917-705 | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | NWYRCYZN10 | NY | |
| 917-714 | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | NWYRCYZN01 | NY | |
| 917-741 | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | NWYRCYZN10 | NY | |
| 917-742 | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | NWYRCYZN10 | NY | |
| 917-743 | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | NWYRCYZN01 | 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.