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 |
|---|---|---|---|---|---|---|
| 2021-03-10 | 804-547 | 0–9 XXXall 10 · 5 holders which blocks → | COMCAST IP PHONE, LLC | 318J | ASHLAND | VA |
| 2018-02-26 | 804-924 | 0–9 XXXall 10 · 7 holders which blocks → | COMCAST IP PHONE, LLC | 318J | MIDLOTHIAN | VA |
| 2018-02-14 | 804-522 | 0XXX1XXX2XXX3XXX4XXX5XXX6XXX8XXX9XXX · 4 holders which blocks → | COMCAST IP PHONE, LLC | 318J | MECHANCSVL | VA |
| 2017-08-30 | 804-791 | 0XXX2XXX3XXX5XXX7XXX8XXX9XXX · 5 holders which blocks → | COMCAST IP PHONE, LLC | 318J | GLOUCESTER | VA |
| 2014-01-17 | 804-299 | 0–9 XXXall 10 · 4 holders which blocks → | COMCAST IP PHONE, LLC | 318J | ASHLAND | VA |
| 2006-10-10 | 804-447 | 0–9 XXXwhole prefix which blocks → | COMCAST IP PHONE, LLC | 318J | RICHMOND | VA |
| 2006-06-23 | 804-308 | 0–9 XXXall 10 · 3 holders which blocks → | COMCAST IP PHONE, LLC | 318J | RICHMOND | VA |
| 2005-04-28 | 804-589 | 0–9 XXXall 10 · 5 holders which blocks → | COMCAST IP PHONE, LLC | 318J | LADYSMITH | VA |
| 2001-04-04 | 804-557 | 0–9 XXXall 10 · 6 holders which blocks → | COMCAST IP PHONE, LLC | 318J | PROVICFORG | VA |
| — | 804-234 | 1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 7 holders which blocks → | COMCAST IP PHONE, LLC | 318J | VARINA | VA |
| — | 804-269 | 0XXX1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX · 4 holders which blocks → | COMCAST IP PHONE, LLC | 318J | RICHMOND | VA |
| — | 804-303 | not yet reported which blocks → | COMCAST IP PHONE, LLC | 318J | RICHMOND | VA |
| — | 804-318 | 0XXX1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX · 6 holders which blocks → | COMCAST IP PHONE, LLC | 318J | CHESTER | VA |
| — | 804-326 | 3XXX4XXX5XXX6XXX7XXX8XXX · 4 holders which blocks → | COMCAST IP PHONE, LLC | 318J | SANDSTON | VA |
| — | 804-368 | 1XXX2XXX3XXX4XXX5XXX6XXX9XXX · 3 holders which blocks → | COMCAST IP PHONE, LLC | 318J | ASHLAND | VA |
| — | 804-507 | 2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 6 holders which blocks → | COMCAST IP PHONE, LLC | 318J | VARINA | VA |
| — | 804-562 | not yet reported which blocks → | COMCAST IP PHONE, LLC | 318J | RICHMOND | VA |
| — | 804-608 | 2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 6 holders which blocks → | COMCAST IP PHONE, LLC | 318J | BETHIA | VA |
| — | 804-708 | 1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX · 6 holders which blocks → | COMCAST IP PHONE, LLC | 318J | MANAKIN | VA |
| — | 804-716 | 3XXX4XXX5XXX6XXX7XXX8XXX which blocks → | COMCAST IP PHONE, LLC | 318J | RICHMOND | VA |
| — | 804-719 | 0XXX1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX · 5 holders which blocks → | COMCAST IP PHONE, LLC | 318J | ROCKVILLE | VA |
| — | 804-789 | 2XXX4XXX5XXX6XXX7XXX · 5 holders which blocks → | COMCAST IP PHONE, LLC | 318J | MECHANCSVL | VA |
| — | 804-803 | 1XXX2XXX3XXX4XXX5XXX6XXX7XXX9XXX · 3 holders which blocks → | COMCAST IP PHONE, LLC | 318J | OLD CHURCH | VA |
| — | 804-824 | 0XXX1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX · 2 holders which blocks → | COMCAST IP PHONE, LLC | 318J | GLOUCESTER | VA |
| — | 804-913 | 0XXX1XXX2XXX3XXX5XXX6XXX7XXX8XXX · 6 holders which blocks → | COMCAST IP PHONE, LLC | 318J | HANOVER | VA |
| — | 804-918 | not yet reported which blocks → | COMCAST IP PHONE, LLC | 318J | RICHMOND | VA |
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.