NumberResearch Membership · Data 09/20/2026

Recent thousands-block assignments

3 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, last 30 days — NPA 631
CSC WIRELESS, LLC 3
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
2020-07-24 631-720-4XXX 4000–4999Assigned OMNIPOINT COMMUNICATIONS, INC. - NY 6622 BRENTWOOD NY
2020-07-24 631-720-5XXX 5000–5999Assigned OMNIPOINT COMMUNICATIONS, INC. - NY 6622 BRENTWOOD NY
2020-07-24 631-720-6XXX 6000–6999Assigned OMNIPOINT COMMUNICATIONS, INC. - NY 6622 BRENTWOOD NY
2020-07-24 631-966-0XXX 0000–0999Assigned OMNIPOINT COMMUNICATIONS, INC. - NY 6622 BRENTWOOD NY
2020-07-17 631-540-3XXX 3000–3999Assigned ONVOY SPECTRUM, LLC 624H MATTITUCK NY
2020-07-17 631-540-4XXX 4000–4999Assigned ONVOY SPECTRUM, LLC 624H MATTITUCK NY
2020-07-17 631-540-5XXX 5000–5999Assigned ONVOY SPECTRUM, LLC 624H MATTITUCK NY
2020-07-17 631-540-6XXX 6000–6999Assigned ONVOY SPECTRUM, LLC 624H MATTITUCK NY
2020-07-10 631-966-6XXX 6000–6999Assigned FRACTEL, LLC 965H BRENTWOOD NY
2020-06-12 631-519-8XXX 8000–8999Assigned ONVOY, LLC- NY 384C E FIRE IS NY
2020-06-12 631-519-9XXX 9000–9999Assigned ONVOY, LLC- NY 384C E FIRE IS NY
2020-06-12 631-817-3XXX 3000–3999Assigned ONVOY, LLC- NY 384C FIREISLAND NY
2020-06-12 631-817-4XXX 4000–4999Assigned ONVOY, LLC- NY 384C FIREISLAND NY
2020-06-11 631-720-0XXX 0000–0999Assigned OMNIPOINT COMMUNICATIONS, INC. - NY 6622 BRENTWOOD NY
2020-06-11 631-720-1XXX 1000–1999Assigned OMNIPOINT COMMUNICATIONS, INC. - NY 6622 BRENTWOOD NY
2020-06-11 631-720-2XXX 2000–2999Assigned OMNIPOINT COMMUNICATIONS, INC. - NY 6622 BRENTWOOD NY
2020-06-11 631-720-3XXX 3000–3999Assigned OMNIPOINT COMMUNICATIONS, INC. - NY 6622 BRENTWOOD NY
2020-05-29 631-646-1XXX 1000–1999Assigned ONVOY, LLC- NY 384C SAYVILLE NY
2020-05-29 631-646-2XXX 2000–2999Assigned ONVOY, LLC- NY 384C SAYVILLE NY
2020-05-26 631-272-0XXX 0000–0999Assigned ONVOY, LLC- NY 384C CENTRAISLP NY
2020-05-26 631-272-1XXX 1000–1999Assigned ONVOY, LLC- NY 384C CENTRAISLP NY
2020-05-26 631-380-1XXX 1000–1999Assigned ONVOY, LLC- NY 384C STONYBROOK NY
2020-05-26 631-380-4XXX 4000–4999Assigned ONVOY, LLC- NY 384C STONYBROOK NY
2020-05-26 631-557-5XXX 5000–5999Assigned ONVOY, LLC- NY 384C AMAGANSETT NY
2020-05-26 631-557-6XXX 6000–6999Assigned ONVOY, LLC- NY 384C AMAGANSETT NY
2020-05-15 631-720-7XXX 7000–7999Assigned OMNIPOINT COMMUNICATIONS, INC. - NY 6622 BRENTWOOD NY
2020-05-15 631-720-8XXX 8000–8999Assigned OMNIPOINT COMMUNICATIONS, INC. - NY 6622 BRENTWOOD NY
2020-05-15 631-720-9XXX 9000–9999Assigned OMNIPOINT COMMUNICATIONS, INC. - NY 6622 BRENTWOOD NY
2020-05-13 631-301-3XXX 3000–3999Assigned VONAGE AMERICA LLC 197D FARMINGDL NY
2020-05-13 631-301-4XXX 4000–4999Assigned VONAGE AMERICA LLC 197D FARMINGDL NY
2020-05-13 631-540-1XXX 1000–1999Assigned ONVOY, LLC- NY 384C MATTITUCK NY
2020-05-13 631-540-2XXX 2000–2999Assigned ONVOY, LLC- NY 384C MATTITUCK NY
2020-05-12 631-436-8XXX 8000–8999Assigned OMNIPOINT COMMUNICATIONS, INC. - NY 6622 BRENTWOOD NY
2020-05-12 631-508-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY 6959 RIVERHEAD NY
2020-05-06 631-209-6XXX 6000–6999Assigned IP HORIZON LLC 515J SHOREHAM NY
2020-05-06 631-257-9XXX 9000–9999Assigned IP HORIZON LLC 515J SMITHTOWN NY
2020-05-06 631-301-8XXX 8000–8999Assigned IP HORIZON LLC 515J FARMINGDL NY
2020-05-06 631-313-1XXX 1000–1999Assigned IP HORIZON LLC 515J ISLIP NY
2020-05-06 631-479-5XXX 5000–5999Assigned IP HORIZON LLC 515J HUNTINGTON NY
2020-05-06 631-628-9XXX 9000–9999Assigned IP HORIZON LLC 515J NORTHPORT NY
2020-05-06 631-908-0XXX 0000–0999Assigned IP HORIZON LLC 515J PATCHOGUE NY
2020-05-06 631-939-0XXX 0000–0999Assigned IP HORIZON LLC 515J RIVERHEAD NY
2020-05-06 631-984-9XXX 9000–9999Assigned IP HORIZON LLC 515J DEER PARK NY
2020-05-01 631-250-2XXX 2000–2999Assigned ONVOY, LLC- NY 384C ST JAMES NY
2020-05-01 631-250-5XXX 5000–5999Assigned ONVOY, LLC- NY 384C ST JAMES NY
2020-05-01 631-366-7XXX 7000–7999Assigned ONVOY, LLC- NY 384C SMITHTOWN NY
2020-05-01 631-366-8XXX 8000–8999Assigned ONVOY, LLC- NY 384C SMITHTOWN NY
2020-05-01 631-515-6XXX 6000–6999Assigned ONVOY, LLC- NY 384C SHELTER IS NY
2020-05-01 631-529-1XXX 1000–1999Assigned ONVOY, LLC- NY 384C ORIENT NY
2020-05-01 631-529-4XXX 4000–4999Assigned ONVOY, LLC- NY 384C ORIENT NY

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.