NumberResearch Membership · Data 09/20/2026

Recent thousands-block assignments

0 blocks assigned in the last 30 days · from the daily NANPA thousands-block report, 09/20/2026

Full prefixes (NXX) Thousands-blocks (1,000-number pools)

Most carrier growth happens here, not at the prefix level: under number pooling, carriers receive individual 1,000-number blocks (e.g. 626-470-0XXX) within already-assigned prefixes. Assignments are initial assignments — the current serving carrier of individual numbers may differ due to portability.

Most active assignees, all time — NPA 541
PEERLESS NETWORK OF OREGON, LLC - OR 31
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 thousands-block assignments
AssignedThousands-blockLast 4 digitsStatusAssigneeOCNRate centerState
2023-03-22 541-320-0XXX 0000–0999Assigned PEERLESS NETWORK OF OREGON, LLC - OR 157F SUMPTER OR
2021-06-28 541-876-0XXX 0000–0999Assigned PEERLESS NETWORK OF OREGON, LLC - OR 157F LAPINE OR
2021-06-28 541-970-3XXX 3000–3999Assigned PEERLESS NETWORK OF OREGON, LLC - OR 157F PENDLETON OR
2020-12-14 541-717-9XXX 9000–9999Assigned PEERLESS NETWORK OF OREGON, LLC - OR 157F BAKER OR
2020-02-20 541-645-2XXX 2000–2999Assigned PEERLESS NETWORK OF OREGON, LLC - OR 157F HOOD RIVER OR
2018-11-27 541-436-8XXX 8000–8999Assigned PEERLESS NETWORK OF OREGON, LLC - OR 157F HOOD RIVER OR
2018-11-20 541-304-8XXX 8000–8999Assigned PEERLESS NETWORK OF OREGON, LLC - OR 157F PENDLETON OR
2018-11-20 541-800-4XXX 4000–4999Assigned PEERLESS NETWORK OF OREGON, LLC - OR 157F STANFIELD OR
2018-11-20 541-904-6XXX 6000–6999Assigned PEERLESS NETWORK OF OREGON, LLC - OR 157F SISTERS OR
2018-11-20 541-907-5XXX 5000–5999Assigned PEERLESS NETWORK OF OREGON, LLC - OR 157F LAPINE OR
2018-11-07 541-919-9XXX 9000–9999Assigned PEERLESS NETWORK OF OREGON, LLC - OR 157F ATHENA OR
2018-09-05 541-919-8XXX 8000–8999Assigned PEERLESS NETWORK OF OREGON, LLC - OR 157F ATHENA OR
2015-03-17 541-809-0XXX 0000–0999Assigned PEERLESS NETWORK OF OREGON, LLC - OR 157F MILTONFWTR OR
2014-09-23 541-800-0XXX 0000–0999Assigned PEERLESS NETWORK OF OREGON, LLC - OR 157F STANFIELD OR
2014-09-18 541-275-8XXX 8000–8999Assigned PEERLESS NETWORK OF OREGON, LLC - OR 157F UMATILLA OR
2014-09-18 541-320-9XXX 9000–9999Assigned PEERLESS NETWORK OF OREGON, LLC - OR 157F SUMPTER OR
2014-09-18 541-777-8XXX 8000–8999Assigned PEERLESS NETWORK OF OREGON, LLC - OR 157F MADRAS OR
2014-09-18 541-803-5XXX 5000–5999Assigned PEERLESS NETWORK OF OREGON, LLC - OR 157F CULVER OR
2014-09-18 541-903-9XXX 9000–9999Assigned PEERLESS NETWORK OF OREGON, LLC - OR 157F PRINEVILLE OR
2014-09-18 541-904-9XXX 9000–9999Assigned PEERLESS NETWORK OF OREGON, LLC - OR 157F SISTERS OR
2014-09-18 541-907-0XXX 0000–0999Assigned PEERLESS NETWORK OF OREGON, LLC - OR 157F LAPINE OR
2014-09-18 541-970-9XXX 9000–9999Assigned PEERLESS NETWORK OF OREGON, LLC - OR 157F PENDLETON OR
2013-11-25 541-288-9XXX 9000–9999Assigned PEERLESS NETWORK OF OREGON, LLC - OR 157F THE DALLES OR
2013-11-25 541-399-8XXX 8000–8999Assigned PEERLESS NETWORK OF OREGON, LLC - OR 157F HOOD RIVER OR
2013-11-19 541-303-8XXX 8000–8999Assigned PEERLESS NETWORK OF OREGON, LLC - OR 157F HERMISTON OR
2013-11-04 541-699-0XXX 0000–0999Assigned PEERLESS NETWORK OF OREGON, LLC - OR 157F REDMOND OR
2013-10-15 541-403-9XXX 9000–9999Assigned PEERLESS NETWORK OF OREGON, LLC - OR 157F BAKER OR
2013-10-15 541-566-4XXX 4000–4999Assigned PEERLESS NETWORK OF OREGON, LLC - OR 157F ATHENA OR
2013-10-15 541-638-9XXX 9000–9999Assigned PEERLESS NETWORK OF OREGON, LLC - OR 157F BLACKBUTTE OR
2013-10-15 541-948-8XXX 8000–8999Assigned PEERLESS NETWORK OF OREGON, LLC - OR 157F BEND OR
2006-09-20 541-526-9XXX 9000–9999Assigned PEERLESS NETWORK OF OREGON, LLC - OR 157F REDMOND OR

Source: NANPA Thousands Block Assignment Report (All Regions, Public), file date 09/20/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.