NumberResearch Membership · Data 09/29/2026

Recent prefix assignments

347 prefixes assigned in the last 30 days · from the daily NANPA CO code file, 09/29/2026

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, last 30 days
8X8, INC. 43
NEW CINGULAR WIRELESS PCS, LLC - DC 28
Rogers Communications Canada Inc. (Wireless) 23
NEW CINGULAR WIRELESS PCS, LLC - IL 23
ONVOY, LLC - CA 19
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
— 603-911 not yet reported which blocks → MULTIPLE OCN LISTING MULT XXXXXXXXXX NH
— 603-912 1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 5 holders which blocks → TERRA NOVA TELECOM INC. 145J SALEM NH
— 603-913 0XXX1XXX3XXX4XXX5XXX7XXX8XXX9XXX · 4 holders which blocks → PAETEC ITEL, LLC 829J MERRIMACK NH
— 603-922 2XXX4XXX6XXX7XXX9XXX · 5 holders which blocks → CONSOLIDATED COMM OF NO. NEW ENGLAND-NH 5113 NO STRATFD NH
— 603-923 0XXX1XXX2XXX3XXX5XXX7XXX8XXX9XXX · 2 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - NH 4017 ROCHESTER NH
— 603-924 not yet reported which blocks → CONSOLIDATED COMM OF NO. NEW ENGLAND-NH 5113 PETERBROGH NH
— 603-925 6XXX which blocks → FREEDOM RING COMMUNICATIONS, LLC 8468 PETERBROGH NH
— 603-926 not yet reported which blocks → CONSOLIDATED COMM OF NO. NEW ENGLAND-NH 5113 HAMPTON NH
— 603-927 6XXX which blocks → MERRIMACK COUNTY TEL. CO. 0047 SUTTON NH
— 603-928 1XXX7XXX · 2 holders which blocks → FREEDOM RING COMMUNICATIONS, LLC 8468 SUNCOOK NH
— 603-929 not yet reported which blocks → CONSOLIDATED COMM OF NO. NEW ENGLAND-NH 5113 HAMPTON NH
— 603-930 not yet reported which blocks → NEW CINGULAR WIRELESS PCS, LLC - DC 4036 NASHUA NH
— 603-932 0–9 XXXall 10 · 6 holders which blocks → ONVOY, LLC - NH 637E MANCHESTER NH
— 603-934 not yet reported which blocks → CONSOLIDATED COMM OF NO. NEW ENGLAND-NH 5113 FRANKLIN NH
— 603-935 0–9 XXXall 10 · 5 holders which blocks → COMCAST IP PHONE, LLC 318J MANCHESTER NH
— 603-938 1XXX9XXX which blocks → MERRIMACK COUNTY TEL. CO. 0047 BRADFORD NH
— 603-939 4XXX which blocks → CONSOLIDATED COMMUNICATIONS OF MAINE COMPANY 3316 EASTCONWAY NH
— 603-941 0XXX1XXX3XXX4XXX5XXX6XXX8XXX · 4 holders which blocks → MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NH 7778 WOLFEBORO NH
— 603-942 1XXX2XXX6XXX · 3 holders which blocks → CONSOLIDATED COMM OF NO. NEW ENGLAND-NH 5113 NORTHWOOD NH
— 603-943 5XXX7XXX8XXX which blocks → OMNIPOINT MIAMI E LICENSE, LLC 6889 NASHUA NH
— 603-947 7XXX which blocks → FREEDOM RING COMMUNICATIONS, LLC 8468 PLYMOUTH NH
— 603-950 not yet reported which blocks → NH
— 603-951 0XXX2XXX · 2 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - NH 4017 MILAN NH
— 603-952 0XXX1XXX2XXX3XXX5XXX6XXX7XXX8XXX9XXX · 3 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - NH 4017 SALEM NH
— 603-953 3XXX4XXX5XXX6XXX7XXX8XXX · 2 holders which blocks → PAETEC ITEL, LLC 829J DOVER NH
— 603-958 not yet reported which blocks → NH
— 603-959 not yet reported which blocks → NH
— 603-964 0XXX which blocks → CONSOLIDATED COMM OF NO. NEW ENGLAND-NH 5113 RYE BEACH NH
— 603-965 2XXX3XXX4XXX5XXX6XXX7XXX8XXX · 5 holders which blocks → PAETEC ITEL, LLC 829J DERRY NH
— 603-967 8XXX which blocks → LEVEL 3 COMMUNICATIONS, LLC - NH 4017 HAMPTON NH
— 603-968 0XXX1XXX4XXX5XXX6XXX · 4 holders which blocks → CONSOLIDATED COMM OF NO. NEW ENGLAND-NH 5113 ASHLAND NH
— 603-971 0XXX2XXX6XXX · 3 holders which blocks → FREEDOM RING COMMUNICATIONS, LLC 8468 RINDGE NH
— 603-974 0XXX3XXX5XXX7XXX8XXX9XXX · 4 holders which blocks → COMCAST IP PHONE, LLC 318J PLAISTOW NH
— 603-976 not yet reported which blocks → NH
— 603-989 2XXX7XXX8XXX · 3 holders which blocks → CONSOLIDATED COMM OF NO. NEW ENGLAND-NH 5113 PIKE NH
— 603-992 2XXX which blocks → LEVEL 3 COMMUNICATIONS, LLC - NH 4017 DANBURY NH
— 603-994 not yet reported which blocks → FREEDOM RING COMMUNICATIONS, LLC 8468 ROCHESTER NH
— 604-202 not yet reported which blocks → TELUS Mobility 8301 New Westminster —
— 604-204 not yet reported which blocks → TELUS 8086 Richmond —
— 604-205 not yet reported which blocks → TELUS 8086 Vancouver —
— 604-207 not yet reported which blocks → TELUS 8086 Richmond —
— 604-209 not yet reported which blocks → TELUS Mobility 8301 New Westminster —
— 604-214 not yet reported which blocks → TELUS 8086 Richmond —
— 604-215 not yet reported which blocks → TELUS 8086 Vancouver —
— 604-216 not yet reported which blocks → TELUS 8086 Vancouver —
— 604-217 not yet reported which blocks → Rogers Communications Canada Inc. (Wireless) 8821 Abbotsford —
— 604-218 not yet reported which blocks → Rogers Communications Canada Inc. (Wireless) 8821 Vancouver —
— 604-219 not yet reported which blocks → TELUS Mobility 8301 Vancouver —
— 604-220 not yet reported which blocks → TELUS Mobility 8301 Vancouver —
— 604-221 not yet reported which blocks → TELUS 8086 Vancouver —

Source: NANPA CO Code Assignments (Utilized, All States, Public), file date 09/29/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.