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 240
PEERLESS NETWORK OF MARYLAND, LLC 120
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
2024-10-21 240-881-7XXX 7000–7999Assigned PEERLESS NETWORK OF MARYLAND, LLC 568G WSNG238Z13 MD
2023-09-28 240-649-8XXX 8000–8999Assigned PEERLESS NETWORK OF MARYLAND, LLC 568G SMITHSBURG MD
2023-09-27 240-769-9XXX 9000–9999Assigned PEERLESS NETWORK OF MARYLAND, LLC 568G KEEDYSVL MD
2023-09-27 240-933-9XXX 9000–9999Assigned PEERLESS NETWORK OF MARYLAND, LLC 568G BUCKEYSTN MD
2023-09-20 240-742-0XXX 0000–0999Assigned PEERLESS NETWORK OF MARYLAND, LLC 568G WSNG238Z14 MD
2023-08-23 240-881-9XXX 9000–9999Assigned PEERLESS NETWORK OF MARYLAND, LLC 568G WSNG238Z13 MD
2023-08-23 240-916-7XXX 7000–7999Assigned PEERLESS NETWORK OF MARYLAND, LLC 568G CUMBERLAND MD
2023-08-23 240-939-9XXX 9000–9999Assigned PEERLESS NETWORK OF MARYLAND, LLC 568G WSNGTNZN11 MD
2023-08-23 240-975-9XXX 9000–9999Assigned PEERLESS NETWORK OF MARYLAND, LLC 568G LAUREL238 MD
2023-08-23 240-983-9XXX 9000–9999Assigned PEERLESS NETWORK OF MARYLAND, LLC 568G HAGERSTOWN MD
2023-07-20 240-248-2XXX 2000–2999Assigned PEERLESS NETWORK OF MARYLAND, LLC 568G RIDGE MD
2023-06-27 240-518-0XXX 0000–0999Assigned PEERLESS NETWORK OF MARYLAND, LLC 568G WALDORF MD
2023-02-24 240-957-9XXX 9000–9999Assigned PEERLESS NETWORK OF MARYLAND, LLC 568G DAMASCS236 MD
2023-01-30 240-248-6XXX 6000–6999Assigned PEERLESS NETWORK OF MARYLAND, LLC 568G RIDGE MD
2023-01-30 240-966-9XXX 9000–9999Assigned PEERLESS NETWORK OF MARYLAND, LLC 568G WSNGTNZN16 MD
2022-10-10 240-961-3XXX 3000–3999Assigned PEERLESS NETWORK OF MARYLAND, LLC 568G POOLESVL MD
2022-04-20 240-201-5XXX 5000–5999Assigned PEERLESS NETWORK OF MARYLAND, LLC 568G RIDGE MD
2022-03-07 240-220-5XXX 5000–5999Assigned PEERLESS NETWORK OF MARYLAND, LLC 568G POOLESVL MD
2022-03-01 240-946-9XXX 9000–9999Assigned PEERLESS NETWORK OF MARYLAND, LLC 568G WSNG236Z14 MD
2021-11-30 240-269-1XXX 1000–1999Assigned PEERLESS NETWORK OF MARYLAND, LLC 568G WSNGTNZN16 MD
2021-11-29 240-220-6XXX 6000–6999Assigned PEERLESS NETWORK OF MARYLAND, LLC 568G POOLESVL MD
2021-11-03 240-248-5XXX 5000–5999Assigned PEERLESS NETWORK OF MARYLAND, LLC 568G RIDGE MD
2021-11-03 240-742-9XXX 9000–9999Assigned PEERLESS NETWORK OF MARYLAND, LLC 568G WSNG238Z14 MD
2021-11-03 240-785-9XXX 9000–9999Assigned PEERLESS NETWORK OF MARYLAND, LLC 568G OAKLAND MD
2021-06-17 240-768-5XXX 5000–5999Assigned PEERLESS NETWORK OF MARYLAND, LLC 568G NANJEMOY MD
2021-02-22 240-255-6XXX 6000–6999Assigned PEERLESS NETWORK OF MARYLAND, LLC 568G POOLESVL MD
2021-01-28 240-226-9XXX 9000–9999Assigned PEERLESS NETWORK OF MARYLAND, LLC 568G OAKLAND MD
2020-12-10 240-332-6XXX 6000–6999Assigned PEERLESS NETWORK OF MARYLAND, LLC 568G TOMPKINSVL MD
2020-10-01 240-799-8XXX 8000–8999Assigned PEERLESS NETWORK OF MARYLAND, LLC 568G BRANDYWINE MD
2020-09-30 240-226-3XXX 3000–3999Assigned PEERLESS NETWORK OF MARYLAND, LLC 568G OAKLAND MD
2020-09-30 240-656-6XXX 6000–6999Assigned PEERLESS NETWORK OF MARYLAND, LLC 568G FREDERICK MD
2020-08-08 240-539-5XXX 5000–5999Assigned PEERLESS NETWORK OF MARYLAND, LLC 568G WSHNGTNZN4 MD
2020-07-28 240-312-6XXX 6000–6999Assigned PEERLESS NETWORK OF MARYLAND, LLC 568G WSHNGTNZN5 MD
2020-07-28 240-331-7XXX 7000–7999Assigned PEERLESS NETWORK OF MARYLAND, LLC 568G WSHNGTNZN3 MD
2020-07-28 240-414-5XXX 5000–5999Assigned PEERLESS NETWORK OF MARYLAND, LLC 568G WSHNGTNZN6 MD
2020-05-26 240-312-5XXX 5000–5999Assigned PEERLESS NETWORK OF MARYLAND, LLC 568G WSHNGTNZN5 MD
2020-05-26 240-332-3XXX 3000–3999Assigned PEERLESS NETWORK OF MARYLAND, LLC 568G TOMPKINSVL MD
2020-05-26 240-859-4XXX 4000–4999Assigned PEERLESS NETWORK OF MARYLAND, LLC 568G ASHTON238 MD
2020-04-28 240-859-3XXX 3000–3999Assigned PEERLESS NETWORK OF MARYLAND, LLC 568G ASHTON238 MD
2020-03-23 240-266-3XXX 3000–3999Assigned PEERLESS NETWORK OF MARYLAND, LLC 568G WSNG236Z14 MD
2020-03-23 240-514-6XXX 6000–6999Assigned PEERLESS NETWORK OF MARYLAND, LLC 568G WSNGTNZN11 MD
2020-03-23 240-539-3XXX 3000–3999Assigned PEERLESS NETWORK OF MARYLAND, LLC 568G WSHNGTNZN4 MD
2020-03-23 240-695-9XXX 9000–9999Assigned PEERLESS NETWORK OF MARYLAND, LLC 568G WSHNGTNZN5 MD
2020-03-23 240-709-4XXX 4000–4999Assigned PEERLESS NETWORK OF MARYLAND, LLC 568G LAUREL236 MD
2020-03-17 240-331-3XXX 3000–3999Assigned PEERLESS NETWORK OF MARYLAND, LLC 568G WSHNGTNZN3 MD
2020-03-17 240-414-6XXX 6000–6999Assigned PEERLESS NETWORK OF MARYLAND, LLC 568G WSHNGTNZN6 MD
2020-03-17 240-591-0XXX 0000–0999Assigned PEERLESS NETWORK OF MARYLAND, LLC 568G HAGERSTOWN MD
2020-02-17 240-540-3XXX 3000–3999Assigned PEERLESS NETWORK OF MARYLAND, LLC 568G WSNG238Z13 MD
2020-02-17 240-653-3XXX 3000–3999Assigned PEERLESS NETWORK OF MARYLAND, LLC 568G LAUREL238 MD
2020-01-28 240-659-1XXX 1000–1999Assigned PEERLESS NETWORK OF MARYLAND, LLC 568G ASHTON236 MD

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.