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 707
PEERLESS NETWORK OF CALIFORNIA, LLC - CA 16
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
Clear Download CSV ↓
Recent NPA-NXX prefix assignments
AssignedNPA-NXXThousands-blocks taken (last-4 opening)Code holderOCNRate centerState
2019-08-27 707-705 0XXX1XXX2XXX3XXX5XXX9XXX · 5 holders which blocks → PEERLESS NETWORK OF CALIFORNIA, LLC - CA 373F VALLEYFORD CA
2019-08-27 707-802 0–9 XXXall 10 · 7 holders which blocks → PEERLESS NETWORK OF CALIFORNIA, LLC - CA 373F MIDDLETOWN CA
2013-03-27 707-379 0–9 XXXall 10 · 7 holders which blocks → PEERLESS NETWORK OF CALIFORNIA, LLC - CA 373F VALLEYFORD CA
2013-03-25 707-306 0–9 XXXall 10 · 5 holders which blocks → PEERLESS NETWORK OF CALIFORNIA, LLC - CA 373F ANNAPOLIS CA
2013-03-18 707-368 0–9 XXXall 10 · 6 holders which blocks → PEERLESS NETWORK OF CALIFORNIA, LLC - CA 373F LEGGETT CA
2013-03-08 707-298 0–9 XXXall 10 · 4 holders which blocks → PEERLESS NETWORK OF CALIFORNIA, LLC - CA 373F EUREKA CA
2013-03-08 707-329 0–9 XXXall 10 · 8 holders which blocks → PEERLESS NETWORK OF CALIFORNIA, LLC - CA 373F SEBASTOPOL CA
2013-03-08 707-390 0–9 XXXall 10 · 7 holders which blocks → PEERLESS NETWORK OF CALIFORNIA, LLC - CA 373F PEPPERWOOD CA
2013-03-08 707-492 0–9 XXXall 10 · 6 holders which blocks → PEERLESS NETWORK OF CALIFORNIA, LLC - CA 373F NAPA CA
2013-03-08 707-617 0–9 XXXall 10 · 9 holders which blocks → PEERLESS NETWORK OF CALIFORNIA, LLC - CA 373F FORTUNA CA
2013-03-08 707-625 0–9 XXXall 10 · 8 holders which blocks → PEERLESS NETWORK OF CALIFORNIA, LLC - CA 373F FORESTVL CA
2013-03-08 707-663 0–9 XXXall 10 · 6 holders which blocks → PEERLESS NETWORK OF CALIFORNIA, LLC - CA 373F TMCV TMCV CA
2012-10-09 707-868 0–9 XXXall 10 · 3 holders which blocks → PEERLESS NETWORK OF CALIFORNIA, LLC - CA 373F TOMALES CA
— 707-381 0–9 XXXall 10 · 7 holders which blocks → PEERLESS NETWORK OF CALIFORNIA, LLC - CA 373F GEYSERVL CA
— 707-404 0XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 4 holders which blocks → PEERLESS NETWORK OF CALIFORNIA, LLC - CA 373F CLOVERDALE CA
— 707-902 0XXX1XXX2XXX3XXX7XXX8XXX9XXX · 5 holders which blocks → PEERLESS NETWORK OF CALIFORNIA, LLC - CA 373F HYDESVILLE CA

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.