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 |
|---|---|---|---|---|---|---|
| 2009-05-19 | 269-457 | 0XXX4XXX5XXX6XXX7XXX8XXX · 4 holders which blocks → | COMCAST IP PHONE, LLC | 318J | AUGUSTA | MI |
| 2009-05-19 | 269-761 | 0XXX7XXX · 2 holders which blocks → | COMCAST IP PHONE, LLC | 318J | HICKORYCOR | MI |
| 2008-11-20 | 269-430 | 0–9 XXXall 10 · 7 holders which blocks → | COMCAST IP PHONE, LLC | 318J | BELLEVUE | MI |
| 2008-04-09 | 269-282 | 0–9 XXXall 10 · 6 holders which blocks → | COMCAST IP PHONE, LLC | 318J | BATTLE CRK | MI |
| 2008-03-17 | 269-302 | 0XXX1XXX2XXX3XXX4XXX6XXX7XXX8XXX · 8 holders which blocks → | COMCAST IP PHONE, LLC | 318J | BANGOR | MI |
| 2007-08-24 | 269-281 | 0–9 XXXall 10 · 4 holders which blocks → | COMCAST IP PHONE, LLC | 318J | ST JOSEPH | MI |
| 2006-09-08 | 269-299 | 0–9 XXXall 10 · 9 holders which blocks → | COMCAST IP PHONE, LLC | 318J | LAWTON | MI |
| 2006-08-16 | 269-262 | 0–9 XXXall 10 · 5 holders which blocks → | COMCAST IP PHONE, LLC | 318J | NILES | MI |
| 2004-10-18 | 269-308 | 0–9 XXXall 10 · 6 holders which blocks → | COMCAST IP PHONE, LLC | 318J | HARTFORD | MI |
| — | 269-722 | 3XXX6XXX7XXX · 3 holders which blocks → | COMCAST IP PHONE, LLC | 318J | FENNVILLE | MI |
| — | 269-872 | 0XXX3XXX6XXX · 3 holders which blocks → | COMCAST IP PHONE, LLC | 318J | SOUTHHAVEN | MI |
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.