NumberResearchRecent prefix assignments
16 prefixes assigned in September 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, September 2026
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| Assigned | NPA-NXX | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|
| 2026-09-16 | 667-557 | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | CATONSVL | MD |
| 2026-09-16 | 848-424 | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | DUNELLEN | NJ |
| 2026-09-16 | 856-736 | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | VINELAND | NJ |
| 2026-09-10 | 582-299 | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | BOALSBURG | PA |
| 2026-09-10 | 686-220 | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | CHESTER | VA |
| 2026-09-09 | 667-554 | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | COLUMBIA | MD |
| 2026-09-09 | 908-701 | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | ELIZABETH | NJ |
| 2026-09-03 | 551-440 | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | HACKENSACK | NJ |
| 2026-09-03 | 640-305 | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | ALLENTOWN | NJ |
| 2026-09-02 | 227-320 | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | LAUREL236 | MD |
| 2026-09-02 | 640-304 | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | ATLNTIC CY | NJ |
| 2026-09-02 | 681-564 | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | CHRLSTNZN1 | WV |
| 2026-09-02 | 681-565 | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | CHRLSTNZN1 | WV |
| 2026-09-02 | 948-274 | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | NRFOLKZON2 | VA |
| 2026-09-01 | 227-319 | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | WSNGTNZN10 | MD |
| 2026-09-01 | 848-422 | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | PERTHAMBOY | NJ |
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.