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 262
TELEPORT COMMUNICATIONS AMERICA, LLC WI 53
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
2020-08-20 262-810 0–9 XXXall 10 · 3 holders which blocks → TELEPORT COMMUNICATIONS AMERICA, LLC WI 7216 THIENSVL WI
2002-05-14 262-485 2XXX3XXX4XXX5XXX6XXX7XXX8XXX · 7 holders which blocks → TELEPORT COMMUNICATIONS AMERICA, LLC WI 7216 PALMYRA WI
2002-05-14 262-582 2XXX3XXX4XXX5XXX8XXX9XXX · 4 holders which blocks → TELEPORT COMMUNICATIONS AMERICA, LLC WI 7216 SULLIVAN WI
2002-05-14 262-982 0XXX1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX · 4 holders which blocks → TELEPORT COMMUNICATIONS AMERICA, LLC WI 7216 GENESEE WI
2002-01-15 262-354 0XXX1XXX2XXX3XXX4XXX5XXX7XXX8XXX9XXX · 7 holders which blocks → TELEPORT COMMUNICATIONS AMERICA, LLC WI 7216 OCONOMOWOC WI
2001-10-02 262-357 1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 5 holders which blocks → TELEPORT COMMUNICATIONS AMERICA, LLC WI 7216 WEST BEND WI
— 262-204 0XXX1XXX3XXX4XXX5XXX7XXX8XXX9XXX · 7 holders which blocks → TELEPORT COMMUNICATIONS AMERICA, LLC WI 7216 CEDARBURG WI
— 262-235 0XXX1XXX2XXX3XXX4XXX5XXX7XXX8XXX · 4 holders which blocks → TELEPORT COMMUNICATIONS AMERICA, LLC WI 7216 PTWASHIGTN WI
— 262-295 0XXX1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX · 6 holders which blocks → TELEPORT COMMUNICATIONS AMERICA, LLC WI 7216 GENOA CITY WI
— 262-317 9XXX which blocks → TELEPORT COMMUNICATIONS AMERICA, LLC WI 7216 MILWAUKZN2 WI
— 262-324 0XXX1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX · 7 holders which blocks → TELEPORT COMMUNICATIONS AMERICA, LLC WI 7216 PARKSIDE WI
— 262-326 0XXX1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX · 6 holders which blocks → TELEPORT COMMUNICATIONS AMERICA, LLC WI 7216 NORTH LAKE WI
— 262-368 0XXX1XXX3XXX4XXX5XXX6XXX7XXX9XXX · 8 holders which blocks → TELEPORT COMMUNICATIONS AMERICA, LLC WI 7216 MUKWONAGO WI
— 262-394 0XXX1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX · 4 holders which blocks → TELEPORT COMMUNICATIONS AMERICA, LLC WI 7216 WALWORTH WI
— 262-458 0XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 7 holders which blocks → TELEPORT COMMUNICATIONS AMERICA, LLC WI 7216 WHITEWATER WI
— 262-504 0XXX9XXX which blocks → TELEPORT COMMUNICATIONS AMERICA, LLC WI 7216 RACINE WI
— 262-506 0XXX4XXX8XXX · 2 holders which blocks → TELEPORT COMMUNICATIONS AMERICA, LLC WI 7216 WAUKESHA WI
— 262-509 0XXX1XXX7XXX9XXX · 3 holders which blocks → TELEPORT COMMUNICATIONS AMERICA, LLC WI 7216 MENOMONFLS WI
— 262-518 0XXX2XXX3XXX6XXX7XXX8XXX9XXX · 6 holders which blocks → TELEPORT COMMUNICATIONS AMERICA, LLC WI 7216 THIENSVL WI
— 262-528 1XXX2XXX3XXX5XXX6XXX7XXX8XXX · 5 holders which blocks → TELEPORT COMMUNICATIONS AMERICA, LLC WI 7216 MERTON WI
— 262-592 1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX · 5 holders which blocks → TELEPORT COMMUNICATIONS AMERICA, LLC WI 7216 EAGLE WI
— 262-612 0XXX3XXX5XXX6XXX7XXX9XXX · 4 holders which blocks → TELEPORT COMMUNICATIONS AMERICA, LLC WI 7216 KENOSHA WI
— 262-623 0XXX1XXX2XXX4XXX5XXX6XXX7XXX8XXX9XXX · 3 holders which blocks → TELEPORT COMMUNICATIONS AMERICA, LLC WI 7216 HUBERTUS WI
— 262-667 2XXX3XXX5XXX6XXX7XXX8XXX · 2 holders which blocks → TELEPORT COMMUNICATIONS AMERICA, LLC WI 7216 KEWASKUM WI
— 262-668 0XXX2XXX3XXX4XXX6XXX7XXX8XXX which blocks → TELEPORT COMMUNICATIONS AMERICA, LLC WI 7216 SLINGER WI
— 262-674 0XXX1XXX4XXX5XXX6XXX7XXX8XXX9XXX · 5 holders which blocks → TELEPORT COMMUNICATIONS AMERICA, LLC WI 7216 JACKSON WI
— 262-682 0XXX1XXX2XXX3XXX4XXX6XXX7XXX8XXX9XXX · 6 holders which blocks → TELEPORT COMMUNICATIONS AMERICA, LLC WI 7216 MUSKEGO WI
— 262-683 0XXX1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX · 3 holders which blocks → TELEPORT COMMUNICATIONS AMERICA, LLC WI 7216 ALLENTON WI
— 262-684 0XXX1XXX2XXX3XXX4XXX5XXX6XXX7XXX9XXX · 6 holders which blocks → TELEPORT COMMUNICATIONS AMERICA, LLC WI 7216 EAST TROY WI
— 262-685 0XXX1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX · 6 holders which blocks → TELEPORT COMMUNICATIONS AMERICA, LLC WI 7216 NEWBURG WI
— 262-686 0XXX1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX · 6 holders which blocks → TELEPORT COMMUNICATIONS AMERICA, LLC WI 7216 WILLIAMSBY WI
— 262-709 0XXX1XXX2XXX3XXX4XXX6XXX8XXX9XXX · 6 holders which blocks → TELEPORT COMMUNICATIONS AMERICA, LLC WI 7216 HARTFORD WI
— 262-725 0XXX1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX · 6 holders which blocks → TELEPORT COMMUNICATIONS AMERICA, LLC WI 7216 DELAVAN WI
— 262-726 1XXX2XXX3XXX4XXX6XXX7XXX8XXX · 6 holders which blocks → TELEPORT COMMUNICATIONS AMERICA, LLC WI 7216 DARIEN WI
— 262-804 0XXX1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX · 7 holders which blocks → TELEPORT COMMUNICATIONS AMERICA, LLC WI 7216 OCONOMOWOC WI
— 262-806 0XXX1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX · 5 holders which blocks → TELEPORT COMMUNICATIONS AMERICA, LLC WI 7216 BURLINGTON WI
— 262-808 0XXX1XXX3XXX5XXX6XXX7XXX8XXX9XXX · 2 holders which blocks → TELEPORT COMMUNICATIONS AMERICA, LLC WI 7216 WEST BEND WI
— 262-812 0XXX1XXX2XXX3XXX4XXX6XXX7XXX8XXX9XXX · 6 holders which blocks → TELEPORT COMMUNICATIONS AMERICA, LLC WI 7216 LAKEGENEVA WI
— 262-824 0XXX1XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 5 holders which blocks → TELEPORT COMMUNICATIONS AMERICA, LLC WI 7216 CALEDONIA WI
— 262-825 0XXX1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX · 2 holders which blocks → TELEPORT COMMUNICATIONS AMERICA, LLC WI 7216 MILWAUKZN2 WI
— 262-846 2XXX3XXX4XXX5XXX6XXX7XXX8XXX · 4 holders which blocks → TELEPORT COMMUNICATIONS AMERICA, LLC WI 7216 SALEM WI
— 262-854 0XXX4XXX5XXX7XXX8XXX · 4 holders which blocks → TELEPORT COMMUNICATIONS AMERICA, LLC WI 7216 SOMERS WI
— 262-864 0XXX1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX · 5 holders which blocks → TELEPORT COMMUNICATIONS AMERICA, LLC WI 7216 UNIONGROVE WI
— 262-869 0XXX1XXX2XXX4XXX5XXX6XXX7XXX8XXX · 6 holders which blocks → TELEPORT COMMUNICATIONS AMERICA, LLC WI 7216 TREVOR WI
— 262-872 0XXX2XXX3XXX4XXX5XXX6XXX8XXX · 6 holders which blocks → TELEPORT COMMUNICATIONS AMERICA, LLC WI 7216 TWIN LAKES WI
— 262-885 0XXX1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX · 4 holders which blocks → TELEPORT COMMUNICATIONS AMERICA, LLC WI 7216 SILVERLAKE WI
— 262-891 0XXX1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX · 6 holders which blocks → TELEPORT COMMUNICATIONS AMERICA, LLC WI 7216 BRISTOL WI
— 262-910 0XXX1XXX3XXX4XXX5XXX6XXX7XXX8XXX · 4 holders which blocks → TELEPORT COMMUNICATIONS AMERICA, LLC WI 7216 BIG BEND WI
— 262-912 0XXX1XXX2XXX4XXX5XXX6XXX9XXX · 3 holders which blocks → TELEPORT COMMUNICATIONS AMERICA, LLC WI 7216 HARTLAND WI
— 262-932 0XXX1XXX3XXX4XXX6XXX7XXX8XXX9XXX · 5 holders which blocks → TELEPORT COMMUNICATIONS AMERICA, LLC WI 7216 SUSSEX WI

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.