NumberResearch Membership · Data 09/20/2026

Recent prefix assignments

0 prefixes assigned in the last 30 days · from the daily NANPA CO code file, 09/20/2026

Full prefixes (NXX) Thousands-blocks (1,000-number pools)

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.

Most active assignees, all time — NPA 256
PAETEC ITEL, LLC 58
New assignments by month Sep 2026 Aug 2026 Jul 2026 Jun 2026 May 2026 Apr 2026 Mar 2026 Feb 2026 Jan 2026 Dec 2025 Nov 2025 Oct 2025
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Recent NPA-NXX prefix assignments
AssignedNPA-NXXThousands-blocks taken (last-4 opening)Code holderOCNRate centerState
2010-02-15 256-970 0–9 XXXall 10 · 5 holders which blocks → PAETEC ITEL, LLC 829J HUNTSVILLE AL
2006-06-15 256-818 0XXX1XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 5 holders which blocks → PAETEC ITEL, LLC 829J FRANCISCO AL
2005-04-25 256-222 0XXX1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX · 6 holders which blocks → PAETEC ITEL, LLC 829J SHEFFIELD AL
2004-03-19 256-250 1XXX2XXX3XXX4XXX5XXX8XXX which blocks → PAETEC ITEL, LLC 829J DECATUR AL
2003-06-06 256-850 0XXX1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX · 4 holders which blocks → PAETEC ITEL, LLC 829J MADISON AL
2003-05-20 256-607 1XXX3XXX4XXX5XXX7XXX8XXX9XXX · 5 holders which blocks → PAETEC ITEL, LLC 829J ROGERSVL AL
2003-03-19 256-408 3XXX4XXX5XXX7XXX8XXX9XXX · 3 holders which blocks → PAETEC ITEL, LLC 829J ASHLAND AL
2002-07-31 256-419 0XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 6 holders which blocks → PAETEC ITEL, LLC 829J ANNISTON AL
2002-07-31 256-459 0XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 6 holders which blocks → PAETEC ITEL, LLC 829J GADSDEN AL
2002-05-20 256-425 1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX which blocks → PAETEC ITEL, LLC 829J HUNTSVILLE AL
2001-11-16 256-713 not yet reported which blocks → PAETEC ITEL, LLC 829J HUNTSVILLE AL
2001-11-01 256-402 3XXX4XXX5XXX7XXX8XXX9XXX · 3 holders which blocks → PAETEC ITEL, LLC 829J DELTA AL
2001-10-22 256-380 3XXX4XXX5XXX7XXX8XXX · 3 holders which blocks → PAETEC ITEL, LLC 829J SKYLINE AL
— 256-241 not yet reported which blocks → PAETEC ITEL, LLC 829J ANNISTON AL
— 256-246 8XXX which blocks → PAETEC ITEL, LLC 829J FLORENCE AL
— 256-248 4XXX7XXX9XXX · 2 holders which blocks → PAETEC ITEL, LLC 829J SHEFFIELD AL
— 256-255 2XXX4XXX6XXX7XXX9XXX · 2 holders which blocks → PAETEC ITEL, LLC 829J CULLMAN AL
— 256-258 5XXX8XXX9XXX · 2 holders which blocks → PAETEC ITEL, LLC 829J MADISON AL
— 256-260 not yet reported which blocks → PAETEC ITEL, LLC 829J DECATUR AL
— 256-261 0XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX · 4 holders which blocks → PAETEC ITEL, LLC 829J HUNTSVILLE AL
— 256-262 3XXX4XXX7XXX8XXX9XXX · 3 holders which blocks → PAETEC ITEL, LLC 829J ATHENS AL
— 256-264 4XXX which blocks → PAETEC ITEL, LLC 829J GUNTERSVL AL
— 256-277 1XXX3XXX4XXX5XXX7XXX8XXX9XXX · 4 holders which blocks → PAETEC ITEL, LLC 829J RUSSELLVL AL
— 256-279 3XXX4XXX5XXX7XXX8XXX9XXX · 3 holders which blocks → PAETEC ITEL, LLC 829J ALBERTVL AL
— 256-281 1XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 6 holders which blocks → PAETEC ITEL, LLC 829J BOAZ AL
— 256-295 0XXX1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX · 2 holders which blocks → PAETEC ITEL, LLC 829J GADSDEN AL
— 256-299 3XXX5XXX7XXX8XXX9XXX · 2 holders which blocks → PAETEC ITEL, LLC 829J TALLADEGA AL
— 256-304 4XXX5XXX7XXX8XXX9XXX · 4 holders which blocks → PAETEC ITEL, LLC 829J FORT PAYNE AL
— 256-382 not yet reported which blocks → PAETEC ITEL, LLC 829J HUNTSVILLE AL
— 256-397 3XXX4XXX5XXX7XXX9XXX · 4 holders which blocks → PAETEC ITEL, LLC 829J ALEXANDRCY AL
— 256-401 5XXX7XXX8XXX9XXX · 3 holders which blocks → PAETEC ITEL, LLC 829J SYLACAUGA AL
— 256-424 1XXX2XXX3XXX5XXX which blocks → PAETEC ITEL, LLC 829J HUNTSVILLE AL
— 256-444 0XXX1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX · 5 holders which blocks → PAETEC ITEL, LLC 829J ATHENS AL
— 256-445 0XXX1XXX2XXX4XXX5XXX6XXX7XXX8XXX9XXX · 4 holders which blocks → PAETEC ITEL, LLC 829J DECATUR AL
— 256-456 5XXX which blocks → PAETEC ITEL, LLC 829J GADSDEN AL
— 256-522 1XXX3XXX4XXX5XXX7XXX8XXX9XXX · 4 holders which blocks → PAETEC ITEL, LLC 829J MOULTON AL
— 256-562 3XXX4XXX7XXX8XXX9XXX · 4 holders which blocks → PAETEC ITEL, LLC 829J HUNTSVILLE AL
— 256-567 3XXX4XXX5XXX7XXX8XXX9XXX · 2 holders which blocks → PAETEC ITEL, LLC 829J COURTLAND AL
— 256-573 1XXX3XXX4XXX5XXX7XXX8XXX9XXX · 4 holders which blocks → PAETEC ITEL, LLC 829J TOWN CREEK AL
— 256-576 1XXX3XXX4XXX5XXX7XXX8XXX9XXX · 5 holders which blocks → PAETEC ITEL, LLC 829J LEIGHTON AL
— 256-578 1XXX3XXX4XXX5XXX7XXX8XXX9XXX · 2 holders which blocks → PAETEC ITEL, LLC 829J RED BAY AL
— 256-588 3XXX4XXX5XXX7XXX8XXX9XXX · 3 holders which blocks → PAETEC ITEL, LLC 829J KILLEN AL
— 256-594 1XXX5XXX7XXX8XXX9XXX · 4 holders which blocks → PAETEC ITEL, LLC 829J SCOTTSBORO AL
— 256-598 3XXX5XXX7XXX8XXX9XXX · 2 holders which blocks → PAETEC ITEL, LLC 829J CHILDERSBG AL
— 256-624 0XXX1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX · 3 holders which blocks → PAETEC ITEL, LLC 829J ANNISTON AL
— 256-639 3XXX4XXX5XXX7XXX8XXX9XXX which blocks → PAETEC ITEL, LLC 829J OHATCHEE AL
— 256-644 4XXX5XXX7XXX · 3 holders which blocks → PAETEC ITEL, LLC 829J JACKSONVL AL
— 256-645 3XXX4XXX5XXX7XXX8XXX9XXX · 5 holders which blocks → PAETEC ITEL, LLC 829J PIEDMONT AL
— 256-691 1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 4 holders which blocks → PAETEC ITEL, LLC 829J ATTALLA AL
— 256-724 0XXX1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX · 7 holders which blocks → PAETEC ITEL, LLC 829J MADISON AL

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.