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 937
BRIGHTSPEED OF NORTHWEST OHIO, INC. 55
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
2001-05-29 937-755 1XXX2XXX4XXX5XXX7XXX · 5 holders which blocks → BRIGHTSPEED OF NORTHWEST OHIO, INC. 0661 NEWMADISON OH
2001-05-22 937-404 1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 5 holders which blocks → BRIGHTSPEED OF NORTHWEST OHIO, INC. 0661 BELLEFNTAN OH
2001-05-17 937-421 1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 6 holders which blocks → BRIGHTSPEED OF NORTHWEST OHIO, INC. 0661 JACKSONCTR OH
— 937-246 1XXX5XXX6XXX7XXX8XXX9XXX · 4 holders which blocks → BRIGHTSPEED OF NORTHWEST OHIO, INC. 0661 RAYMOND OH
— 937-273 3XXX4XXX6XXX7XXX9XXX · 4 holders which blocks → BRIGHTSPEED OF NORTHWEST OHIO, INC. 0661 ELDORADO OH
— 937-292 5XXX which blocks → BRIGHTSPEED OF NORTHWEST OHIO, INC. 0661 BELLEFNTAN OH
— 937-295 not yet reported which blocks → BRIGHTSPEED OF NORTHWEST OHIO, INC. 0661 FT LORAMIE OH
— 937-316 not yet reported which blocks → BRIGHTSPEED OF NORTHWEST OHIO, INC. 0661 GREENVILLE OH
— 937-337 1XXX2XXX7XXX · 2 holders which blocks → BRIGHTSPEED OF NORTHWEST OHIO, INC. 0661 ANSONIA OH
— 937-338 not yet reported which blocks → BRIGHTSPEED OF NORTHWEST OHIO, INC. 0661 ROSSBURG OH
— 937-348 1XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 5 holders which blocks → BRIGHTSPEED OF NORTHWEST OHIO, INC. 0661 MAGNETCSPG OH
— 937-349 1XXX5XXX6XXX7XXX8XXX · 4 holders which blocks → BRIGHTSPEED OF NORTHWEST OHIO, INC. 0661 MILFORDCTR OH
— 937-354 1XXX5XXX6XXX7XXX8XXX · 5 holders which blocks → BRIGHTSPEED OF NORTHWEST OHIO, INC. 0661 MT VICTORY OH
— 937-355 1XXX2XXX5XXX6XXX7XXX8XXX · 2 holders which blocks → BRIGHTSPEED OF NORTHWEST OHIO, INC. 0661 WMANSFIELD OH
— 937-358 1XXX3XXX5XXX6XXX7XXX8XXX9XXX · 3 holders which blocks → BRIGHTSPEED OF NORTHWEST OHIO, INC. 0661 YORKCENTER OH
— 937-362 1XXX7XXX · 2 holders which blocks → BRIGHTSPEED OF NORTHWEST OHIO, INC. 0661 ROSEWOOD OH
— 937-363 not yet reported which blocks → BRIGHTSPEED OF NORTHWEST OHIO, INC. 0661 RIDGEWAY OH
— 937-394 not yet reported which blocks → BRIGHTSPEED OF NORTHWEST OHIO, INC. 0661 ANNA OH
— 937-437 9XXX which blocks → BRIGHTSPEED OF NORTHWEST OHIO, INC. 0661 NEW PARIS OH
— 937-447 1XXX6XXX · 2 holders which blocks → BRIGHTSPEED OF NORTHWEST OHIO, INC. 0661 GETTYSBURG OH
— 937-448 3XXX4XXX7XXX8XXX9XXX · 4 holders which blocks → BRIGHTSPEED OF NORTHWEST OHIO, INC. 0661 BRADFORD OH
— 937-452 2XXX4XXX5XXX6XXX8XXX · 5 holders which blocks → BRIGHTSPEED OF NORTHWEST OHIO, INC. 0661 CAMDEN OH
— 937-456 not yet reported which blocks → BRIGHTSPEED OF NORTHWEST OHIO, INC. 0661 EATON OH
— 937-464 not yet reported which blocks → BRIGHTSPEED OF NORTHWEST OHIO, INC. 0661 BELLE CTR OH
— 937-465 not yet reported which blocks → BRIGHTSPEED OF NORTHWEST OHIO, INC. 0661 W LIBERTY OH
— 937-468 1XXX3XXX4XXX5XXX6XXX8XXX · 4 holders which blocks → BRIGHTSPEED OF NORTHWEST OHIO, INC. 0661 RUSHSYLVAN OH
— 937-472 5XXX8XXX · 2 holders which blocks → BRIGHTSPEED OF NORTHWEST OHIO, INC. 0661 EATON OH
— 937-492 not yet reported which blocks → BRIGHTSPEED OF NORTHWEST OHIO, INC. 0661 SIDNEY OH
— 937-493 not yet reported which blocks → BRIGHTSPEED OF NORTHWEST OHIO, INC. 0661 SIDNEY OH
— 937-494 not yet reported which blocks → BRIGHTSPEED OF NORTHWEST OHIO, INC. 0661 SIDNEY OH
— 937-497 not yet reported which blocks → BRIGHTSPEED OF NORTHWEST OHIO, INC. 0661 SIDNEY OH
— 937-498 not yet reported which blocks → BRIGHTSPEED OF NORTHWEST OHIO, INC. 0661 SIDNEY OH
— 937-526 2XXX which blocks → BRIGHTSPEED OF NORTHWEST OHIO, INC. 0661 VERSAILLES OH
— 937-547 not yet reported which blocks → BRIGHTSPEED OF NORTHWEST OHIO, INC. 0661 GREENVILLE OH
— 937-548 not yet reported which blocks → BRIGHTSPEED OF NORTHWEST OHIO, INC. 0661 GREENVILLE OH
— 937-578 none assigned yet which blocks → BRIGHTSPEED OF NORTHWEST OHIO, INC. 0661 MARYSVILLE OH
— 937-585 not yet reported which blocks → BRIGHTSPEED OF NORTHWEST OHIO, INC. 0661 DE GRAFF OH
— 937-592 not yet reported which blocks → BRIGHTSPEED OF NORTHWEST OHIO, INC. 0661 BELLEFNTAN OH
— 937-593 not yet reported which blocks → BRIGHTSPEED OF NORTHWEST OHIO, INC. 0661 BELLEFNTAN OH
— 937-596 not yet reported which blocks → BRIGHTSPEED OF NORTHWEST OHIO, INC. 0661 JACKSONCTR OH
— 937-599 not yet reported which blocks → BRIGHTSPEED OF NORTHWEST OHIO, INC. 0661 BELLEFNTAN OH
— 937-642 not yet reported which blocks → BRIGHTSPEED OF NORTHWEST OHIO, INC. 0661 MARYSVILLE OH
— 937-644 not yet reported which blocks → BRIGHTSPEED OF NORTHWEST OHIO, INC. 0661 MARYSVILLE OH
— 937-645 none assigned yet which blocks → BRIGHTSPEED OF NORTHWEST OHIO, INC. 0661 MARYSVILLE OH
— 937-666 1XXX6XXX7XXX8XXX · 4 holders which blocks → BRIGHTSPEED OF NORTHWEST OHIO, INC. 0661 E LIBERTY OH
— 937-678 2XXX which blocks → BRIGHTSPEED OF NORTHWEST OHIO, INC. 0661 WMANCHESTR OH
— 937-686 not yet reported which blocks → BRIGHTSPEED OF NORTHWEST OHIO, INC. 0661 HUNTSVILLE OH
— 937-692 not yet reported which blocks → BRIGHTSPEED OF NORTHWEST OHIO, INC. 0661 ARCANUM OH
— 937-693 not yet reported which blocks → BRIGHTSPEED OF NORTHWEST OHIO, INC. 0661 BOTKINS OH
— 937-747 1XXX4XXX6XXX7XXX · 4 holders which blocks → BRIGHTSPEED OF NORTHWEST OHIO, INC. 0661 NO LEWISBG OH

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.