NumberResearch Membership · Data 09/19/2026

Recent prefix assignments

0 prefixes assigned in the last 30 days · from the daily NANPA CO code file, 09/19/2026

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 248
METROPCS, INC. 49
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
2016-08-17 248-993 0XXX1XXX2XXX3XXX4XXX5XXX6XXX8XXX9XXX · 3 holders which blocks → METROPCS, INC. 5562 NORTHVILLE MI
2015-08-26 248-653 0–9 XXXall 10 · 4 holders which blocks → METROPCS, INC. 5562 HOLLY MI
2011-06-08 248-392 0–9 XXXall 10 · 5 holders which blocks → METROPCS, INC. 5562 PONTIAC MI
2011-05-16 248-602 0–9 XXXall 10 · 5 holders which blocks → METROPCS, INC. 5562 TROY MI
2011-05-13 248-278 0–9 XXXall 10 · 6 holders which blocks → METROPCS, INC. 5562 SOUTH LYON MI
2008-10-08 248-906 0XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 6 holders which blocks → METROPCS, INC. 5562 TROY MI
2008-10-02 248-812 0–9 XXXall 10 · 5 holders which blocks → METROPCS, INC. 5562 PONTIAC MI
2006-02-01 248-499 0–9 XXXall 10 · 5 holders which blocks → METROPCS, INC. 5562 PONTIAC MI
2002-03-12 248-974 0XXX1XXX2XXX3XXX4XXX · 2 holders which blocks → METROPCS, INC. 5562 NORTHVILLE MI
2001-12-28 248-497 0XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX · 2 holders which blocks → METROPCS, INC. 5562 SOUTHFIELD MI
2001-11-01 248-943 none assigned yet which blocks → METROPCS, INC. 5562 SOUTHFIELD MI
2001-08-27 248-979 1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 3 holders which blocks → METROPCS, INC. 5562 BIRMINGHAM MI
2001-05-24 248-830 3XXX5XXX which blocks → METROPCS, INC. 5562 PONTIAC MI
2001-03-26 248-939 4XXX5XXX8XXX9XXX · 3 holders which blocks → METROPCS, INC. 5562 FARMINGTON MI
— 248-212 0XXX which blocks → METROPCS, INC. 5562 PONTIAC MI
— 248-214 2XXX which blocks → METROPCS, INC. 5562 PONTIAC MI
— 248-240 none assigned yet which blocks → METROPCS, INC. 5562 HOLLY MI
— 248-249 none assigned yet which blocks → METROPCS, INC. 5562 HOLLY MI
— 248-277 0XXX1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX · 6 holders which blocks → METROPCS, INC. 5562 NORTHVILLE MI
— 248-342 none assigned yet which blocks → METROPCS, INC. 5562 PONTIAC MI
— 248-343 none assigned yet which blocks → METROPCS, INC. 5562 PONTIAC MI
— 248-361 none assigned yet which blocks → METROPCS, INC. 5562 SOUTHFIELD MI
— 248-388 none assigned yet which blocks → METROPCS, INC. 5562 SOUTHFIELD MI
— 248-390 none assigned yet which blocks → METROPCS, INC. 5562 PONTIAC MI
— 248-396 none assigned yet which blocks → METROPCS, INC. 5562 PONTIAC MI
— 248-431 none assigned yet which blocks → METROPCS, INC. 5562 PONTIAC MI
— 248-467 2XXX3XXX5XXX8XXX · 4 holders which blocks → METROPCS, INC. 5562 HOLLY MI
— 248-470 none assigned yet which blocks → METROPCS, INC. 5562 SOUTHFIELD MI
— 248-506 none assigned yet which blocks → METROPCS, INC. 5562 ROYAL OAK MI
— 248-521 none assigned yet which blocks → METROPCS, INC. 5562 SOUTHFIELD MI
— 248-632 0–9 XXXall 10 · 4 holders which blocks → METROPCS, INC. 5562 ROYAL OAK MI
— 248-640 none assigned yet which blocks → METROPCS, INC. 5562 SOUTHFIELD MI
— 248-667 0–9 XXXall 10 · 7 holders which blocks → METROPCS, INC. 5562 SOUTH LYON MI
— 248-747 0–9 XXXall 10 · 2 holders which blocks → METROPCS, INC. 5562 W BLOOMFLD MI
— 248-755 none assigned yet which blocks → METROPCS, INC. 5562 FARMINGTON MI
— 248-767 none assigned yet which blocks → METROPCS, INC. 5562 NORTHVILLE MI
— 248-789 none assigned yet which blocks → METROPCS, INC. 5562 SOUTHFIELD MI
— 248-842 none assigned yet which blocks → METROPCS, INC. 5562 PONTIAC MI
— 248-866 none assigned yet which blocks → METROPCS, INC. 5562 SOUTHFIELD MI
— 248-867 none assigned yet which blocks → METROPCS, INC. 5562 SOUTHFIELD MI
— 248-872 0XXX which blocks → METROPCS, INC. 5562 PONTIAC MI
— 248-875 0XXX which blocks → METROPCS, INC. 5562 PONTIAC MI
— 248-894 none assigned yet which blocks → METROPCS, INC. 5562 PONTIAC MI
— 248-895 none assigned yet which blocks → METROPCS, INC. 5562 PONTIAC MI
— 248-910 none assigned yet which blocks → METROPCS, INC. 5562 SOUTHFIELD MI
— 248-917 0XXX1XXX2XXX · 2 holders which blocks → METROPCS, INC. 5562 PONTIAC MI
— 248-935 none assigned yet which blocks → METROPCS, INC. 5562 PONTIAC MI
— 248-980 0XXX which blocks → METROPCS, INC. 5562 PONTIAC MI
— 248-981 0XXX which blocks → METROPCS, INC. 5562 PONTIAC MI

Source: NANPA CO Code Assignments (Utilized, All States, Public), file date 09/19/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.