NumberResearch Membership · Data 09/25/2026

Recent prefix assignments

337 prefixes assigned in the last 30 days · from the daily NANPA CO code file, 09/25/2026

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
ONVOY, LLC - CA 26
NEW CINGULAR WIRELESS PCS, LLC - IL 25
U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 12
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
— 684-677 not yet reported which blocks → AMERICAN SAMOA TELECOMMUNICATIONS AUTHORITY 3900 AM SAMOA AS
— 684-684 not yet reported which blocks → AS
— 684-685 not yet reported which blocks → MULTIPLE OCN LISTING MULT XXXXXXXXXX AS
— 684-688 not yet reported which blocks → AMERICAN SAMOA TELECOMMUNICATIONS AUTHORITY 3900 AM SAMOA AS
— 684-691 not yet reported which blocks → AMERICAN SAMOA TELECOMMUNICATIONS AUTHORITY 3900 AM SAMOA AS
— 684-699 not yet reported which blocks → AMERICAN SAMOA TELECOMMUNICATIONS AUTHORITY 3900 AM SAMOA AS
— 684-700 not yet reported which blocks → MULTIPLE OCN LISTING MULT XXXXXXXXXX AS
— 684-711 not yet reported which blocks → MULTIPLE OCN LISTING MULT XXXXXXXXXX AS
— 684-731 not yet reported which blocks → AMERICAN SAMOA TELECOMMUNICATIONS AUTHORITY 909H AM SAMOA AS
— 684-733 not yet reported which blocks → AMERICAN SAMOA TELECOMMUNICATIONS AUTHORITY 909H AM SAMOA AS
— 684-770 not yet reported which blocks → AMERICAN SAMOA TELECOMMUNICATIONS AUTHORITY 909H AM SAMOA AS
— 684-811 not yet reported which blocks → MULTIPLE OCN LISTING MULT XXXXXXXXXX AS
— 684-911 not yet reported which blocks → MULTIPLE OCN LISTING MULT XXXXXXXXXX AS
— 684-950 not yet reported which blocks → MULTIPLE OCN LISTING MULT XXXXXXXXXX AS
— 684-958 not yet reported which blocks → MULTIPLE OCN LISTING MULT XXXXXXXXXX AS
— 684-959 not yet reported which blocks → MULTIPLE OCN LISTING MULT XXXXXXXXXX AS
— 684-976 not yet reported which blocks → MULTIPLE OCN LISTING MULT XXXXXXXXXX AS
— 684-988 not yet reported which blocks → AS
— 686-211 not yet reported which blocks → MULTIPLE OCN LISTING MULT XXXXXXXXXX VA
— 686-311 not yet reported which blocks → MULTIPLE OCN LISTING MULT XXXXXXXXXX VA
— 686-411 not yet reported which blocks → MULTIPLE OCN LISTING MULT XXXXXXXXXX VA
— 686-511 not yet reported which blocks → MULTIPLE OCN LISTING MULT XXXXXXXXXX VA
— 686-555 not yet reported which blocks → MULTIPLE OCN LISTING MULT DIR ASST VA
— 686-611 not yet reported which blocks → MULTIPLE OCN LISTING MULT XXXXXXXXXX VA
— 686-700 not yet reported which blocks → VA
— 686-711 not yet reported which blocks → MULTIPLE OCN LISTING MULT XXXXXXXXXX VA
— 686-811 not yet reported which blocks → MULTIPLE OCN LISTING MULT XXXXXXXXXX VA
— 686-911 not yet reported which blocks → MULTIPLE OCN LISTING MULT XXXXXXXXXX VA
— 686-950 not yet reported which blocks → VA
— 686-958 not yet reported which blocks → VA
— 686-959 not yet reported which blocks → VA
— 686-976 not yet reported which blocks → VA
— 689-211 not yet reported which blocks → MULTIPLE OCN LISTING MULT XXXXXXXXXX FL
— 689-215 0–9 XXXall 10 · 3 holders which blocks → ONVOY, LLC - FL 937C KISSIMMEE FL
— 689-248 0–9 XXXall 10 · 4 holders which blocks → AERIAL COMMUNICATIONS, INC. 6701 WINTERPARK FL
— 689-258 0–9 XXXwhole prefix which blocks → BANDWIDTH.COM CLEC, LLC - FL 982E ORLANDO FL
— 689-289 0–9 XXXall 10 · 6 holders which blocks → ONVOY SPECTRUM, LLC 624H MONTVERDE FL
— 689-311 not yet reported which blocks → MULTIPLE OCN LISTING MULT XXXXXXXXXX FL
— 689-411 not yet reported which blocks → MULTIPLE OCN LISTING MULT XXXXXXXXXX FL
— 689-511 not yet reported which blocks → MULTIPLE OCN LISTING MULT XXXXXXXXXX FL
— 689-555 not yet reported which blocks → MULTIPLE OCN LISTING MULT DIR ASST FL
— 689-611 not yet reported which blocks → MULTIPLE OCN LISTING MULT XXXXXXXXXX FL
— 689-700 not yet reported which blocks → FL
— 689-711 not yet reported which blocks → MULTIPLE OCN LISTING MULT XXXXXXXXXX FL
— 689-811 not yet reported which blocks → MULTIPLE OCN LISTING MULT XXXXXXXXXX FL
— 689-900 0–9 XXXall 10 · 7 holders which blocks → ONVOY, LLC - FL 937C GENEVA FL
— 689-911 not yet reported which blocks → MULTIPLE OCN LISTING MULT XXXXXXXXXX FL
— 689-950 not yet reported which blocks → FL
— 689-958 not yet reported which blocks → FL
— 689-959 not yet reported which blocks → FL

Source: NANPA CO Code Assignments (Utilized, All States, Public), file date 09/25/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.