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 |
|---|---|---|---|---|---|---|
| — | 781-722 | 7XXX8XXX · 2 holders which blocks → | PAETEC ITEL, LLC | 829J | WINCHESTER | MA |
| — | 781-726 | 0XXX1XXX2XXX3XXX4XXX5XXX8XXX · 3 holders which blocks → | PAETEC ITEL, LLC | 829J | NEEDHAM | MA |
| — | 781-746 | 6XXX7XXX8XXX9XXX · 2 holders which blocks → | PAETEC ITEL, LLC | 829J | CANTON | MA |
| — | 781-761 | 3XXX4XXX5XXX8XXX · 4 holders which blocks → | PAETEC ITEL, LLC | 829J | LEXINGTON | MA |
| — | 781-783 | 0XXX1XXX2XXX3XXX4XXX5XXX7XXX8XXX9XXX · 4 holders which blocks → | PAETEC ITEL, LLC | 829J | HINGHAM | MA |
| — | 781-810 | 0XXX3XXX4XXX5XXX7XXX8XXX · 4 holders which blocks → | PAETEC ITEL, LLC | 829J | WALTHAM | MA |
| — | 781-831 | 0XXX1XXX2XXX3XXX4XXX5XXX7XXX8XXX9XXX · 3 holders which blocks → | PAETEC ITEL, LLC | 829J | KINGSTON | MA |
| — | 781-838 | 0XXX1XXX2XXX3XXX4XXX5XXX7XXX8XXX9XXX · 3 holders which blocks → | PAETEC ITEL, LLC | 829J | WINCHESTER | MA |
| — | 781-850 | 2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 4 holders which blocks → | PAETEC ITEL, LLC | 829J | STONEHAM | MA |
| — | 781-873 | 2XXX5XXX6XXX7XXX8XXX9XXX · 3 holders which blocks → | PAETEC ITEL, LLC | 829J | MALDEN | MA |
| — | 781-884 | 7XXX8XXX which blocks → | PAETEC ITEL, LLC | 829J | BRAINTREE | MA |
| — | 781-897 | none assigned yet which blocks → | PAETEC ITEL, LLC | 829J | WOBURN | MA |
| — | 781-916 | 8XXX9XXX · 2 holders which blocks → | PAETEC ITEL, LLC | 829J | WALTHAM | MA |
| — | 781-927 | 3XXX4XXX5XXX8XXX9XXX · 4 holders which blocks → | PAETEC ITEL, LLC | 829J | WEYMOUTH | MA |
| — | 781-928 | 8XXX which blocks → | PAETEC ITEL, LLC | 829J | WAKEFIELD | MA |
| — | 781-936 | 2XXX3XXX5XXX6XXX7XXX8XXX · 4 holders which blocks → | PAETEC ITEL, LLC | 829J | KINGSTON | MA |
| — | 781-957 | 1XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 5 holders which blocks → | PAETEC ITEL, LLC | 829J | MEDFORD | MA |
| — | 781-960 | 3XXX4XXX5XXX7XXX8XXX · 2 holders which blocks → | PAETEC ITEL, LLC | 829J | MEDFORD | MA |
| — | 781-966 | not yet reported which blocks → | PAETEC ITEL, LLC | 829J | WALTHAM | MA |
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.