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 573
PEERLESS NETWORK OF MISSOURI, LLC - MO 183
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
2026-05-21 573-965-6XXX 6000–6999Assigned PEERLESS NETWORK OF MISSOURI, LLC - MO 225F VERSAILLES MO
2025-01-28 573-314-7XXX 7000–7999Assigned PEERLESS NETWORK OF MISSOURI, LLC - MO 225F FRANKFORD MO
2025-01-28 573-394-7XXX 7000–7999Assigned PEERLESS NETWORK OF MISSOURI, LLC - MO 225F RISCO MO
2025-01-28 573-448-0XXX 0000–0999Assigned PEERLESS NETWORK OF MISSOURI, LLC - MO 225F GIDEON MO
2025-01-28 573-618-4XXX 4000–4999Assigned PEERLESS NETWORK OF MISSOURI, LLC - MO 225F MARBLEHILL MO
2025-01-28 573-757-3XXX 3000–3999Assigned PEERLESS NETWORK OF MISSOURI, LLC - MO 225F DEERING MO
2025-01-28 573-802-2XXX 2000–2999Assigned PEERLESS NETWORK OF MISSOURI, LLC - MO 225F RICHWOODS MO
2024-11-22 573-561-7XXX 7000–7999Assigned PEERLESS NETWORK OF MISSOURI, LLC - MO 225F FREDERCKTN MO
2024-11-22 573-908-3XXX 3000–3999Assigned PEERLESS NETWORK OF MISSOURI, LLC - MO 225F JACKSON MO
2024-11-22 573-990-5XXX 5000–5999Assigned PEERLESS NETWORK OF MISSOURI, LLC - MO 225F MALDEN MO
2024-10-03 573-692-8XXX 8000–8999Assigned PEERLESS NETWORK OF MISSOURI, LLC - MO 225F LKOZKOSBCH MO
2024-10-03 573-920-7XXX 7000–7999Assigned PEERLESS NETWORK OF MISSOURI, LLC - MO 225F ELDON MO
2024-10-03 573-961-9XXX 9000–9999Assigned PEERLESS NETWORK OF MISSOURI, LLC - MO 225F CHAFFEE MO
2024-01-24 573-504-9XXX 9000–9999Assigned PEERLESS NETWORK OF MISSOURI, LLC - MO 225F PUXICO MO
2024-01-24 573-813-9XXX 9000–9999Assigned PEERLESS NETWORK OF MISSOURI, LLC - MO 225F E PRAIRIE MO
2024-01-24 573-867-9XXX 9000–9999Assigned PEERLESS NETWORK OF MISSOURI, LLC - MO 225F ELSBERRY MO
2023-09-29 573-316-0XXX 0000–0999Assigned PEERLESS NETWORK OF MISSOURI, LLC - MO 225F CARDWELL MO
2023-07-26 573-309-7XXX 7000–7999Assigned PEERLESS NETWORK OF MISSOURI, LLC - MO 225F BELL CITY MO
2023-07-26 573-914-6XXX 6000–6999Assigned PEERLESS NETWORK OF MISSOURI, LLC - MO 225F CAPEGIRARD MO
2023-03-21 573-361-7XXX 7000–7999Assigned PEERLESS NETWORK OF MISSOURI, LLC - MO 225F ESSEX MO
2021-12-30 573-266-4XXX 4000–4999Assigned PEERLESS NETWORK OF MISSOURI, LLC - MO 225F OAK RIDGE MO
2021-02-23 573-800-7XXX 7000–7999Assigned PEERLESS NETWORK OF MISSOURI, LLC - MO 225F CENTER MO
2020-10-29 573-993-6XXX 6000–6999Assigned PEERLESS NETWORK OF MISSOURI, LLC - MO 225F CLARKSVL MO
2020-09-29 573-500-4XXX 4000–4999Assigned PEERLESS NETWORK OF MISSOURI, LLC - MO 225F CAMPBELL MO
2020-09-29 573-524-2XXX 2000–2999Assigned PEERLESS NETWORK OF MISSOURI, LLC - MO 225F MACKSCREEK MO
2020-06-01 573-398-0XXX 0000–0999Assigned PEERLESS NETWORK OF MISSOURI, LLC - MO 225F SCOTT CITY MO
2020-06-01 573-666-1XXX 1000–1999Assigned PEERLESS NETWORK OF MISSOURI, LLC - MO 225F BOWLNGGREN MO
2020-04-28 573-398-1XXX 1000–1999Assigned PEERLESS NETWORK OF MISSOURI, LLC - MO 225F SCOTT CITY MO
2019-08-27 573-426-7XXX 7000–7999Assigned PEERLESS NETWORK OF MISSOURI, LLC - MO 225F ROLLA MO
2019-02-26 573-534-5XXX 5000–5999Assigned PEERLESS NETWORK OF MISSOURI, LLC - MO 225F BONNETERRE MO
2019-02-26 573-542-4XXX 4000–4999Assigned PEERLESS NETWORK OF MISSOURI, LLC - MO 225F CHARLESTON MO
2018-11-27 573-273-5XXX 5000–5999Assigned PEERLESS NETWORK OF MISSOURI, LLC - MO 225F ADVANCE MO
2018-11-27 573-389-9XXX 9000–9999Assigned PEERLESS NETWORK OF MISSOURI, LLC - MO 225F OAK RIDGE MO
2018-11-01 573-583-7XXX 7000–7999Assigned PEERLESS NETWORK OF MISSOURI, LLC - MO 225F ORAN MO
2018-10-30 573-502-6XXX 6000–6999Assigned PEERLESS NETWORK OF MISSOURI, LLC - MO 225F GRAVOIS ML MO
2018-10-30 573-643-4XXX 4000–4999Assigned PEERLESS NETWORK OF MISSOURI, LLC - MO 225F MARSTON MO
2018-10-01 573-583-9XXX 9000–9999Assigned PEERLESS NETWORK OF MISSOURI, LLC - MO 225F ORAN MO
2016-11-17 573-738-9XXX 9000–9999Assigned PEERLESS NETWORK OF MISSOURI, LLC - MO 225F SENATH MO
2015-09-23 573-832-6XXX 6000–6999Assigned PEERLESS NETWORK OF MISSOURI, LLC - MO 225F VERSAILLES MO
2013-10-18 573-539-6XXX 6000–6999Assigned PEERLESS NETWORK OF MISSOURI, LLC - MO 225F VERSAILLES MO
2013-04-12 573-273-1XXX 1000–1999Assigned PEERLESS NETWORK OF MISSOURI, LLC - MO 225F ADVANCE MO
2013-04-12 573-273-2XXX 2000–2999Assigned PEERLESS NETWORK OF MISSOURI, LLC - MO 225F ADVANCE MO
2013-04-12 573-975-1XXX 1000–1999Assigned PEERLESS NETWORK OF MISSOURI, LLC - MO 225F MEXICO MO
2013-04-12 573-975-2XXX 2000–2999Assigned PEERLESS NETWORK OF MISSOURI, LLC - MO 225F MEXICO MO
2013-04-10 573-350-1XXX 1000–1999Assigned PEERLESS NETWORK OF MISSOURI, LLC - MO 225F DELTA MO
2013-04-10 573-350-6XXX 6000–6999Assigned PEERLESS NETWORK OF MISSOURI, LLC - MO 225F DELTA MO
2013-04-09 573-203-6XXX 6000–6999Assigned PEERLESS NETWORK OF MISSOURI, LLC - MO 225F SENATH MO
2013-04-09 573-203-9XXX 9000–9999Assigned PEERLESS NETWORK OF MISSOURI, LLC - MO 225F SENATH MO
2013-04-09 573-264-6XXX 6000–6999Assigned PEERLESS NETWORK OF MISSOURI, LLC - MO 225F SCOTT CITY MO
2013-04-09 573-264-7XXX 7000–7999Assigned PEERLESS NETWORK OF MISSOURI, LLC - MO 225F SCOTT CITY MO

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.