NumberResearchRecent prefix assignments
0 prefixes assigned in the last 30 days · from the daily NANPA CO code file, 09/20/2026
The Code holder is who opened each NPA-NXX prefix — not necessarily who holds the numbers. A prefix is 10,000 numbers, but under pooling its ten 1,000-number blocks are handed out individually, often to different carriers; the code holder may hold only one block, or none. The Thousands-blocks column shows how the ten blocks are really split — click which blocks → to see who holds each 1,000-number block and its last-4-digit range. Assignments are initial assignments; the current serving carrier may differ due to portability.
| Assigned | NPA-NXX | Thousands-blocks taken (last-4 opening) | Code holder | OCN | Rate center | State |
|---|---|---|---|---|---|---|
| 2001-02-26 | 731-810 | not yet reported which blocks → | AENEAS COMMUNICATIONS, LLC - TN | 2891 | DECATURVL | TN |
| 2001-01-23 | 731-809 | not yet reported which blocks → | AENEAS COMMUNICATIONS, LLC - TN | 2891 | TIPTONVL | TN |
| — | 731-403 | not yet reported which blocks → | AENEAS COMMUNICATIONS, LLC - TN | 2891 | BOLIVAR | TN |
| — | 731-436 | not yet reported which blocks → | AENEAS COMMUNICATIONS, LLC - TN | 2891 | BELLS | TN |
| — | 731-480 | not yet reported which blocks → | AENEAS COMMUNICATIONS, LLC - TN | 2891 | GREENFIELD | TN |
| — | 731-520 | not yet reported which blocks → | AENEAS COMMUNICATIONS, LLC - TN | 2891 | HENDERSON | TN |
| — | 731-554 | not yet reported which blocks → | AENEAS COMMUNICATIONS, LLC - TN | 2891 | JACKSON | TN |
| — | 731-558 | not yet reported which blocks → | AENEAS COMMUNICATIONS, LLC - TN | 2891 | CAMDEN | TN |
| — | 731-562 | not yet reported which blocks → | AENEAS COMMUNICATIONS, LLC - TN | 2891 | HUMBOLDT | TN |
| — | 731-585 | not yet reported which blocks → | AENEAS COMMUNICATIONS, LLC - TN | 2891 | BROWNSVL | TN |
| — | 731-597 | not yet reported which blocks → | AENEAS COMMUNICATIONS, LLC - TN | 2891 | RIPLEY | TN |
| — | 731-625 | not yet reported which blocks → | AENEAS COMMUNICATIONS, LLC - TN | 2891 | HUNTINGDON | TN |
| — | 731-651 | not yet reported which blocks → | AENEAS COMMUNICATIONS, LLC - TN | 2891 | LEXINGTON | TN |
| — | 731-653 | not yet reported which blocks → | AENEAS COMMUNICATIONS, LLC - TN | 2891 | PARIS | TN |
| — | 731-654 | not yet reported which blocks → | AENEAS COMMUNICATIONS, LLC - TN | 2891 | SAVANNAH | TN |
| — | 731-698 | not yet reported which blocks → | AENEAS COMMUNICATIONS, LLC - TN | 2891 | UNION CITY | TN |
| — | 731-713 | not yet reported which blocks → | AENEAS COMMUNICATIONS, LLC - TN | 2891 | SELMER | TN |
| — | 731-894 | not yet reported which blocks → | AENEAS COMMUNICATIONS, LLC - TN | 2891 | DYERSBURG | TN |
Source: NANPA CO Code Assignments (Utilized, All States, Public), file date 09/20/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.