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 207
CONSOLIDATED COMM OF NO. NEW ENGLAND-ME 263
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
2015-06-03 207-569 0–9 XXXall 10 · 5 holders which blocks → CONSOLIDATED COMM OF NO. NEW ENGLAND-ME 5111 KENNEBUNK ME
2004-01-30 207-662 0–9 XXXwhole prefix which blocks → CONSOLIDATED COMM OF NO. NEW ENGLAND-ME 5111 PORTLAND ME
— 207-201 not yet reported which blocks → CONSOLIDATED COMM OF NO. NEW ENGLAND-ME 5111 XXXXXXXXXX ME
— 207-202 not yet reported which blocks → CONSOLIDATED COMM OF NO. NEW ENGLAND-ME 5111 XXXXXXXXXX ME
— 207-223 1XXX3XXX6XXX7XXX8XXX · 3 holders which blocks → CONSOLIDATED COMM OF NO. NEW ENGLAND-ME 5111 WINTERPORT ME
— 207-230 3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 6 holders which blocks → CONSOLIDATED COMM OF NO. NEW ENGLAND-ME 5111 CAMDEN ME
— 207-236 not yet reported which blocks → CONSOLIDATED COMM OF NO. NEW ENGLAND-ME 5111 CAMDEN ME
— 207-238 0XXX1XXX5XXX6XXX8XXX · 5 holders which blocks → CONSOLIDATED COMM OF NO. NEW ENGLAND-ME 5111 FAIRFIELD ME
— 207-244 1XXX2XXX6XXX8XXX · 3 holders which blocks → CONSOLIDATED COMM OF NO. NEW ENGLAND-ME 5111 SOUTHWEHBR ME
— 207-253 9XXX which blocks → CONSOLIDATED COMM OF NO. NEW ENGLAND-ME 5111 PORTLAND ME
— 207-255 7XXX which blocks → CONSOLIDATED COMM OF NO. NEW ENGLAND-ME 5111 MACHIAS ME
— 207-259 0XXX1XXX4XXX5XXX6XXX7XXX9XXX · 7 holders which blocks → CONSOLIDATED COMM OF NO. NEW ENGLAND-ME 5111 MACHIAS ME
— 207-260 not yet reported which blocks → CONSOLIDATED COMM OF NO. NEW ENGLAND-ME 5111 XXXXXXXXXX ME
— 207-262 not yet reported which blocks → CONSOLIDATED COMM OF NO. NEW ENGLAND-ME 5111 BANGOR ME
— 207-275 6XXX7XXX8XXX9XXX · 2 holders which blocks → CONSOLIDATED COMM OF NO. NEW ENGLAND-ME 5111 BANGOR ME
— 207-276 2XXX8XXX · 2 holders which blocks → CONSOLIDATED COMM OF NO. NEW ENGLAND-ME 5111 NORTHETHBR ME
— 207-282 not yet reported which blocks → CONSOLIDATED COMM OF NO. NEW ENGLAND-ME 5111 BIDDEFORD ME
— 207-283 5XXX which blocks → CONSOLIDATED COMM OF NO. NEW ENGLAND-ME 5111 BIDDEFORD ME
— 207-284 none assigned yet which blocks → CONSOLIDATED COMM OF NO. NEW ENGLAND-ME 5111 BIDDEFORD ME
— 207-285 1XXX2XXX5XXX6XXX8XXX · 4 holders which blocks → CONSOLIDATED COMM OF NO. NEW ENGLAND-ME 5111 CORINTH ME
— 207-286 none assigned yet which blocks → CONSOLIDATED COMM OF NO. NEW ENGLAND-ME 5111 BIDDEFORD ME
— 207-287 0XXX which blocks → CONSOLIDATED COMM OF NO. NEW ENGLAND-ME 5111 AUGUSTA ME
— 207-288 7XXX which blocks → CONSOLIDATED COMM OF NO. NEW ENGLAND-ME 5111 BAR HARBOR ME
— 207-294 none assigned yet which blocks → CONSOLIDATED COMM OF NO. NEW ENGLAND-ME 5111 BIDDEFORD ME
— 207-324 not yet reported which blocks → CONSOLIDATED COMM OF NO. NEW ENGLAND-ME 5111 SANFORD ME
— 207-325 1XXX2XXX6XXX7XXX · 4 holders which blocks → CONSOLIDATED COMM OF NO. NEW ENGLAND-ME 5111 LIMESTONE ME
— 207-326 1XXX5XXX7XXX · 3 holders which blocks → CONSOLIDATED COMM OF NO. NEW ENGLAND-ME 5111 CASTINE ME
— 207-327 0XXX9XXX · 2 holders which blocks → CONSOLIDATED COMM OF NO. NEW ENGLAND-ME 5111 BRADFORD ME
— 207-328 5XXX7XXX9XXX · 3 holders which blocks → CONSOLIDATED COMM OF NO. NEW ENGLAND-ME 5111 LIMESTONE ME
— 207-338 7XXX which blocks → CONSOLIDATED COMM OF NO. NEW ENGLAND-ME 5111 BELFAST ME
— 207-339 1XXX3XXX5XXX6XXX · 4 holders which blocks → CONSOLIDATED COMM OF NO. NEW ENGLAND-ME 5111 SO LEBANON ME
— 207-344 1XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 4 holders which blocks → CONSOLIDATED COMM OF NO. NEW ENGLAND-ME 5111 LEWISTON ME
— 207-345 1XXX2XXX4XXX5XXX6XXX7XXX8XXX · 5 holders which blocks → CONSOLIDATED COMM OF NO. NEW ENGLAND-ME 5111 MECHANCFLS ME
— 207-346 0XXX1XXX2XXX4XXX5XXX6XXX7XXX8XXX9XXX · 3 holders which blocks → CONSOLIDATED COMM OF NO. NEW ENGLAND-ME 5111 MECHANCFLS ME
— 207-348 1XXX3XXX4XXX8XXX · 4 holders which blocks → CONSOLIDATED COMM OF NO. NEW ENGLAND-ME 5111 DEER ISLE ME
— 207-351 0XXX4XXX5XXX6XXX7XXX8XXX9XXX · 5 holders which blocks → CONSOLIDATED COMM OF NO. NEW ENGLAND-ME 5111 YORK ME
— 207-353 not yet reported which blocks → CONSOLIDATED COMM OF NO. NEW ENGLAND-ME 5111 LISBON FLS ME
— 207-354 1XXX3XXX4XXX5XXX · 4 holders which blocks → CONSOLIDATED COMM OF NO. NEW ENGLAND-ME 5111 THOMASTON ME
— 207-359 1XXX7XXX9XXX · 3 holders which blocks → CONSOLIDATED COMM OF NO. NEW ENGLAND-ME 5111 SEDGWICK ME
— 207-361 0XXX3XXX4XXX5XXX6XXX8XXX · 6 holders which blocks → CONSOLIDATED COMM OF NO. NEW ENGLAND-ME 5111 YORK ME
— 207-363 not yet reported which blocks → CONSOLIDATED COMM OF NO. NEW ENGLAND-ME 5111 YORK ME
— 207-364 1XXX6XXX · 2 holders which blocks → CONSOLIDATED COMM OF NO. NEW ENGLAND-ME 5111 RUMFORD ME
— 207-367 1XXX3XXX4XXX6XXX7XXX8XXX9XXX · 4 holders which blocks → CONSOLIDATED COMM OF NO. NEW ENGLAND-ME 5111 DEER ISLE ME
— 207-368 6XXX7XXX8XXX · 3 holders which blocks → CONSOLIDATED COMM OF NO. NEW ENGLAND-ME 5111 NEWPORT ME
— 207-369 4XXX5XXX6XXX7XXX · 4 holders which blocks → CONSOLIDATED COMM OF NO. NEW ENGLAND-ME 5111 RUMFORD ME
— 207-371 0XXX1XXX3XXX4XXX5XXX6XXX7XXX8XXX · 5 holders which blocks → CONSOLIDATED COMM OF NO. NEW ENGLAND-ME 5111 BATH ME
— 207-372 1XXX2XXX4XXX · 3 holders which blocks → CONSOLIDATED COMM OF NO. NEW ENGLAND-ME 5111 TENANTSHBR ME
— 207-373 5XXX7XXX8XXX9XXX · 3 holders which blocks → CONSOLIDATED COMM OF NO. NEW ENGLAND-ME 5111 BRUNSWICK ME
— 207-374 1XXX6XXX7XXX8XXX · 4 holders which blocks → CONSOLIDATED COMM OF NO. NEW ENGLAND-ME 5111 BLUE HILL ME
— 207-375 0XXX1XXX3XXX5XXX7XXX · 5 holders which blocks → CONSOLIDATED COMM OF NO. NEW ENGLAND-ME 5111 SABATTUS ME

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.