NumberResearch Membership · Data 09/19/2026

Recent thousands-block assignments

0 blocks assigned in the last 30 days · from the daily NANPA thousands-block report, 09/19/2026

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 206
PEERLESS NETWORK OF WASHINGTON, LLC - WA 73
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
2026-07-28 206-610-7XXX 7000–7999Assigned PEERLESS NETWORK OF WASHINGTON, LLC - WA 159F RICHMNDBCH WA
2025-08-19 206-862-3XXX 3000–3999Assigned PEERLESS NETWORK OF WASHINGTON, LLC - WA 159F SEATTLE WA
2025-02-25 206-881-9XXX 9000–9999Assigned PEERLESS NETWORK OF WASHINGTON, LLC - WA 159F SEATTLE WA
2023-09-01 206-837-6XXX 6000–6999Assigned PEERLESS NETWORK OF WASHINGTON, LLC - WA 159F SEATTLE WA
2023-03-30 206-776-0XXX 0000–0999Assigned PEERLESS NETWORK OF WASHINGTON, LLC - WA 159F SEATTLE WA
2023-02-07 206-828-6XXX 6000–6999Assigned PEERLESS NETWORK OF WASHINGTON, LLC - WA 159F RICHMNDBCH WA
2023-01-11 206-813-9XXX 9000–9999Assigned PEERLESS NETWORK OF WASHINGTON, LLC - WA 159F SEATTLE WA
2022-11-23 206-803-0XXX 0000–0999Assigned PEERLESS NETWORK OF WASHINGTON, LLC - WA 159F BAINBDG IS WA
2022-10-27 206-828-9XXX 9000–9999Assigned PEERLESS NETWORK OF WASHINGTON, LLC - WA 159F RICHMNDBCH WA
2022-08-24 206-796-9XXX 9000–9999Assigned PEERLESS NETWORK OF WASHINGTON, LLC - WA 159F SEATTLE WA
2022-07-07 206-944-7XXX 7000–7999Assigned PEERLESS NETWORK OF WASHINGTON, LLC - WA 159F DES MOINES WA
2022-05-27 206-776-9XXX 9000–9999Assigned PEERLESS NETWORK OF WASHINGTON, LLC - WA 159F SEATTLE WA
2022-03-21 206-746-6XXX 6000–6999Assigned PEERLESS NETWORK OF WASHINGTON, LLC - WA 159F BAINBDG IS WA
2022-01-07 206-791-6XXX 6000–6999Assigned PEERLESS NETWORK OF WASHINGTON, LLC - WA 159F SEATTLE WA
2021-08-31 206-944-1XXX 1000–1999Assigned PEERLESS NETWORK OF WASHINGTON, LLC - WA 159F DES MOINES WA
2021-08-30 206-710-9XXX 9000–9999Assigned PEERLESS NETWORK OF WASHINGTON, LLC - WA 159F SEATTLE WA
2021-08-30 206-758-9XXX 9000–9999Assigned PEERLESS NETWORK OF WASHINGTON, LLC - WA 159F BAINBDG IS WA
2021-04-06 206-670-9XXX 9000–9999Assigned PEERLESS NETWORK OF WASHINGTON, LLC - WA 159F SEATTLE WA
2021-02-04 206-537-4XXX 4000–4999Assigned PEERLESS NETWORK OF WASHINGTON, LLC - WA 159F BAINBDG IS WA
2020-10-05 206-558-9XXX 9000–9999Assigned PEERLESS NETWORK OF WASHINGTON, LLC - WA 159F BAINBDG IS WA
2020-10-05 206-627-4XXX 4000–4999Assigned PEERLESS NETWORK OF WASHINGTON, LLC - WA 159F DES MOINES WA
2020-07-31 206-635-7XXX 7000–7999Assigned PEERLESS NETWORK OF WASHINGTON, LLC - WA 159F SEATTLE WA
2020-04-02 206-289-9XXX 9000–9999Assigned PEERLESS NETWORK OF WASHINGTON, LLC - WA 159F RICHMNDBCH WA
2020-02-26 206-888-9XXX 9000–9999Assigned PEERLESS NETWORK OF WASHINGTON, LLC - WA 159F SEATTLE WA
2019-11-22 206-533-3XXX 3000–3999Assigned PEERLESS NETWORK OF WASHINGTON, LLC - WA 159F RICHMNDBCH WA
2019-10-02 206-537-0XXX 0000–0999Assigned PEERLESS NETWORK OF WASHINGTON, LLC - WA 159F BAINBDG IS WA
2019-08-09 206-741-0XXX 0000–0999Assigned PEERLESS NETWORK OF WASHINGTON, LLC - WA 159F SEATTLE WA
2018-11-28 206-401-7XXX 7000–7999Assigned PEERLESS NETWORK OF WASHINGTON, LLC - WA 159F RICHMNDBCH WA
2018-11-28 206-513-2XXX 2000–2999Assigned PEERLESS NETWORK OF WASHINGTON, LLC - WA 159F SEATTLE WA
2018-10-16 206-231-6XXX 6000–6999Assigned PEERLESS NETWORK OF WASHINGTON, LLC - WA 159F DES MOINES WA
2018-09-24 206-502-4XXX 4000–4999Assigned PEERLESS NETWORK OF WASHINGTON, LLC - WA 159F BAINBDG IS WA
2018-09-05 206-401-8XXX 8000–8999Assigned PEERLESS NETWORK OF WASHINGTON, LLC - WA 159F RICHMNDBCH WA
2018-08-22 206-636-1XXX 1000–1999Assigned PEERLESS NETWORK OF WASHINGTON, LLC - WA 159F SEATTLE WA
2018-05-03 206-531-7XXX 7000–7999Assigned PEERLESS NETWORK OF WASHINGTON, LLC - WA 159F SEATTLE WA
2017-07-14 206-401-1XXX 1000–1999Assigned PEERLESS NETWORK OF WASHINGTON, LLC - WA 159F RICHMNDBCH WA
2017-07-14 206-480-1XXX 1000–1999Assigned PEERLESS NETWORK OF WASHINGTON, LLC - WA 159F SEATTLE WA
2017-07-13 206-887-9XXX 9000–9999Assigned PEERLESS NETWORK OF WASHINGTON, LLC - WA 159F BAINBDG IS WA
2017-04-20 206-502-1XXX 1000–1999Assigned PEERLESS NETWORK OF WASHINGTON, LLC - WA 159F BAINBDG IS WA
2017-04-04 206-887-0XXX 0000–0999Assigned PEERLESS NETWORK OF WASHINGTON, LLC - WA 159F BAINBDG IS WA
2016-11-16 206-502-0XXX 0000–0999Assigned PEERLESS NETWORK OF WASHINGTON, LLC - WA 159F BAINBDG IS WA
2016-10-14 206-773-0XXX 0000–0999Assigned PEERLESS NETWORK OF WASHINGTON, LLC - WA 159F SEATTLE WA
2016-10-14 206-773-1XXX 1000–1999Assigned PEERLESS NETWORK OF WASHINGTON, LLC - WA 159F SEATTLE WA
2016-09-08 206-401-9XXX 9000–9999Assigned PEERLESS NETWORK OF WASHINGTON, LLC - WA 159F RICHMNDBCH WA
2016-09-08 206-785-0XXX 0000–0999Assigned PEERLESS NETWORK OF WASHINGTON, LLC - WA 159F SEATTLE WA
2016-07-06 206-487-7XXX 7000–7999Assigned PEERLESS NETWORK OF WASHINGTON, LLC - WA 159F SEATTLE WA
2016-03-31 206-485-9XXX 9000–9999Assigned PEERLESS NETWORK OF WASHINGTON, LLC - WA 159F SEATTLE WA
2016-03-22 206-823-3XXX 3000–3999Assigned PEERLESS NETWORK OF WASHINGTON, LLC - WA 159F BAINBDG IS WA
2016-01-15 206-899-2XXX 2000–2999Assigned PEERLESS NETWORK OF WASHINGTON, LLC - WA 159F BAINBDG IS WA
2015-11-12 206-899-0XXX 0000–0999Assigned PEERLESS NETWORK OF WASHINGTON, LLC - WA 159F BAINBDG IS WA
2015-08-05 206-397-1XXX 1000–1999Assigned PEERLESS NETWORK OF WASHINGTON, LLC - WA 159F SEATTLE WA

Source: NANPA Thousands Block Assignment Report (All Regions, Public), file date 09/19/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.