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 |
|---|---|---|---|---|---|---|
| 2022-03-16 | 228-286 | 0–9 XXXall 10 · 2 holders which blocks → | PAETEC ITEL, LLC | 829J | BILOXI | MS |
| 2008-02-13 | 228-295 | 0–9 XXXall 10 · 4 holders which blocks → | PAETEC ITEL, LLC | 829J | BILOXI | MS |
| 2005-04-26 | 228-707 | 0XXX1XXX2XXX3XXX4XXX5XXX6XXX7XXX · 2 holders which blocks → | PAETEC ITEL, LLC | 829J | PEARLINGTN | MS |
| 2005-04-26 | 228-901 | 0XXX1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX · 4 holders which blocks → | PAETEC ITEL, LLC | 829J | HURLEY | MS |
| 2005-01-14 | 228-456 | 1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX · 3 holders which blocks → | PAETEC ITEL, LLC | 829J | BILOXI | MS |
| 2005-01-14 | 228-567 | 2XXX3XXX4XXX5XXX7XXX8XXX · 3 holders which blocks → | PAETEC ITEL, LLC | 829J | PASCAGOULA | MS |
| 2005-01-14 | 228-678 | 1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX which blocks → | PAETEC ITEL, LLC | 829J | GULFPORT | MS |
| 2001-09-25 | 228-245 | not yet reported which blocks → | PAETEC ITEL, LLC | 829J | PASSCHRSTN | MS |
| 2001-09-07 | 228-246 | not yet reported which blocks → | PAETEC ITEL, LLC | 829J | MOSS POINT | MS |
| 2001-05-10 | 228-244 | not yet reported which blocks → | PAETEC ITEL, LLC | 829J | OCEAN SPG | MS |
| 2001-05-02 | 228-236 | 0XXX4XXX5XXX6XXX7XXX8XXX9XXX · 2 holders which blocks → | PAETEC ITEL, LLC | 829J | GULFPORT | MS |
| 2001-02-27 | 228-233 | 0XXX4XXX5XXX6XXX7XXX8XXX9XXX which blocks → | PAETEC ITEL, LLC | 829J | BILOXI | MS |
| — | 228-230 | not yet reported which blocks → | PAETEC ITEL, LLC | 829J | OCEAN SPG | MS |
| — | 228-252 | 2XXX3XXX4XXX5XXX6XXX8XXX which blocks → | PAETEC ITEL, LLC | 829J | BAYSTLOUIS | MS |
| — | 228-282 | 0–9 XXXall 10 · 5 holders which blocks → | PAETEC ITEL, LLC | 829J | OCEAN SPG | MS |
| — | 228-312 | not yet reported which blocks → | PAETEC ITEL, LLC | 829J | PASCAGOULA | MS |
| — | 228-349 | 1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX which blocks → | PAETEC ITEL, LLC | 829J | BILOXI | MS |
| — | 228-407 | 1XXX2XXX3XXX4XXX6XXX · 2 holders which blocks → | PAETEC ITEL, LLC | 829J | PASCAGOULA | MS |
| — | 228-460 | 0XXX1XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 8 holders which blocks → | PAETEC ITEL, LLC | 829J | MOSS POINT | MS |
| — | 228-546 | 0XXX1XXX2XXX4XXX5XXX6XXX7XXX8XXX · 2 holders which blocks → | PAETEC ITEL, LLC | 829J | BILOXI | MS |
| — | 228-549 | 0XXX3XXX5XXX6XXX · 3 holders which blocks → | PAETEC ITEL, LLC | 829J | PASCAGOULA | MS |
| — | 228-679 | 4XXX5XXX6XXX7XXX8XXX9XXX · 4 holders which blocks → | PAETEC ITEL, LLC | 829J | GULFPORT | MS |
| — | 228-701 | not yet reported which blocks → | PAETEC ITEL, LLC | 829J | GULFPORT | MS |
| — | 228-702 | not yet reported which blocks → | PAETEC ITEL, LLC | 829J | BILOXI | MS |
| — | 228-797 | 0XXX1XXX5XXX6XXX7XXX8XXX9XXX · 2 holders which blocks → | PAETEC ITEL, LLC | 829J | BAYSTLOUIS | MS |
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.