NumberResearchRecent prefix assignments
0 prefixes assigned in the last 30 days · from the daily NANPA CO code file, 09/19/2026
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 |
|---|---|---|---|---|---|---|
| 2019-06-04 | 765-270 | 0XXX1XXX2XXX3XXX4XXX8XXX9XXX · 4 holders which blocks → | COMCAST IP PHONE, LLC | 318J | RICHMOND | IN |
| 2010-10-25 | 765-500 | not yet reported which blocks → | COMCAST IP PHONE, LLC | 318J | SHARPSVL | IN |
| 2010-04-02 | 765-402 | not yet reported which blocks → | COMCAST IP PHONE, LLC | 318J | ROMNEY | IN |
| 2010-04-02 | 765-408 | not yet reported which blocks → | COMCAST IP PHONE, LLC | 318J | TIPTON | IN |
| 2009-10-21 | 765-486 | 0XXX6XXX · 2 holders which blocks → | COMCAST IP PHONE, LLC | 318J | MARKLEVL | IN |
| 2009-02-04 | 765-380 | 0XXX1XXX2XXX3XXX4XXX5XXX6XXX8XXX9XXX · 5 holders which blocks → | COMCAST IP PHONE, LLC | 318J | FAIRMOUNT | IN |
| 2008-06-11 | 765-320 | not yet reported which blocks → | COMCAST IP PHONE, LLC | 318J | BATTLEGRND | IN |
| 2006-03-23 | 765-692 | 0XXX1XXX2XXX3XXX4XXX · 5 holders which blocks → | COMCAST IP PHONE, LLC | 318J | CONNERSVL | IN |
| 2005-08-17 | 765-838 | 0–9 XXXall 10 · 3 holders which blocks → | COMCAST IP PHONE, LLC | 318J | LAFAYETTE | IN |
| 2005-07-22 | 765-393 | 0–9 XXXall 10 · 5 holders which blocks → | COMCAST IP PHONE, LLC | 318J | ANDERSON | IN |
| — | 765-630 | 0–9 XXXall 10 · 5 holders which blocks → | COMCAST IP PHONE, LLC | 318J | GREENCASTL | IN |
Source: NANPA CO Code Assignments (Utilized, All States, Public), file date 09/19/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.