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
2019-08-15 631-301-2XXX 2000–2999Assigned ONVOY, LLC- NY 384C FARMINGDL NY
2019-08-15 631-309-2XXX 2000–2999Assigned ONVOY, LLC- NY 384C AMITYVILLE NY
2019-08-15 631-309-3XXX 3000–3999Assigned ONVOY, LLC- NY 384C AMITYVILLE NY
2019-08-15 631-314-3XXX 3000–3999Assigned ONVOY, LLC- NY 384C BABYLON NY
2019-08-15 631-314-5XXX 5000–5999Assigned ONVOY, LLC- NY 384C BABYLON NY
2019-08-15 631-544-2XXX 2000–2999Assigned ONVOY, LLC- NY 384C KINGS PARK NY
2019-08-15 631-670-5XXX 5000–5999Assigned ONVOY, LLC- NY 384C COMMACK NY
2019-08-15 631-690-2XXX 2000–2999Assigned ONVOY, LLC- NY 384C PATCHOGUE NY
2019-08-15 631-705-2XXX 2000–2999Assigned ONVOY, LLC- NY 384C ATLANTIC NY
2019-08-15 631-763-5XXX 5000–5999Assigned ONVOY, LLC- NY 384C COLDSPGHBR NY
2019-08-15 631-894-9XXX 9000–9999Assigned ONVOY, LLC- NY 384C BAY SHORE NY
2019-08-15 631-939-2XXX 2000–2999Assigned ONVOY, LLC- NY 384C RIVERHEAD NY
2019-07-26 631-939-3XXX 3000–3999Assigned METROPCS, INC. 5562 RIVERHEAD NY
2019-07-26 631-939-4XXX 4000–4999Assigned METROPCS, INC. 5562 RIVERHEAD NY
2019-06-28 631-809-6XXX 6000–6999Assigned METROPCS, INC. 5562 DEER PARK NY
2019-06-20 631-204-4XXX 4000–4999Assigned TELNYX LLC 073H SOUTHAMPTN NY
2019-06-18 631-716-4XXX 4000–4999Assigned BANDWIDTH.COM CLEC, LLC - NY 997E SELDEN NY
2019-06-12 631-809-7XXX 7000–7999Assigned METROPCS, INC. 5562 DEER PARK NY
2019-06-11 631-800-0XXX 0000–0999Assigned PEERLESS NETWORK OF NEW YORK, LLC - NY 155E SOUTHAMPTN NY
2019-06-03 631-314-2XXX 2000–2999Assigned CSC WIRELESS, LLC 425J BABYLON NY
2019-06-03 631-314-8XXX 8000–8999Assigned CSC WIRELESS, LLC 425J BABYLON NY
2019-06-03 631-314-9XXX 9000–9999Assigned CSC WIRELESS, LLC 425J BABYLON NY
2019-05-20 631-203-7XXX 7000–7999Assigned BANDWIDTH.COM CLEC, LLC - NY 997E CENTRAISLP NY
2019-05-15 631-809-4XXX 4000–4999Assigned CSC WIRELESS, LLC 425J DEER PARK NY
2019-05-15 631-809-5XXX 5000–5999Assigned CSC WIRELESS, LLC 425J DEER PARK NY
2019-05-13 631-846-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - NY 997E SELDEN NY
2019-05-06 631-247-3XXX 3000–3999Assigned CORETEL NEW YORK, INC. - NY 1215 FARMINGDL NY
2019-05-06 631-247-7XXX 7000–7999Assigned CORETEL NEW YORK, INC. - NY 1215 FARMINGDL NY
2019-05-06 631-264-8XXX 8000–8999Assigned CORETEL NEW YORK, INC. - NY 1215 AMITYVILLE NY
2019-05-06 631-266-7XXX 7000–7999Assigned CORETEL NEW YORK, INC. - NY 1215 W COMMACK NY
2019-05-06 631-266-9XXX 9000–9999Assigned CORETEL NEW YORK, INC. - NY 1215 W COMMACK NY
2019-05-06 631-272-3XXX 3000–3999Assigned CORETEL NEW YORK, INC. - NY 1215 CENTRAISLP NY
2019-05-06 631-272-4XXX 4000–4999Assigned CORETEL NEW YORK, INC. - NY 1215 CENTRAISLP NY
2019-05-06 631-292-3XXX 3000–3999Assigned CORETEL NEW YORK, INC. - NY 1215 KINGS PARK NY
2019-05-06 631-489-4XXX 4000–4999Assigned CORETEL NEW YORK, INC. - NY 1215 W COMMACK NY
2019-05-06 631-528-3XXX 3000–3999Assigned CORETEL NEW YORK, INC. - NY 1215 KINGS PARK NY
2019-05-06 631-534-2XXX 2000–2999Assigned CORETEL NEW YORK, INC. - NY 1215 COLDSPGHBR NY
2019-05-06 631-628-4XXX 4000–4999Assigned CORETEL NEW YORK, INC. - NY 1215 NORTHPORT NY
2019-05-06 631-628-7XXX 7000–7999Assigned CORETEL NEW YORK, INC. - NY 1215 NORTHPORT NY
2019-05-06 631-663-6XXX 6000–6999Assigned CORETEL NEW YORK, INC. - NY 1215 KINGS PARK NY
2019-05-06 631-763-4XXX 4000–4999Assigned CORETEL NEW YORK, INC. - NY 1215 COLDSPGHBR NY
2019-05-06 631-818-3XXX 3000–3999Assigned CORETEL NEW YORK, INC. - NY 1215 BABYLON NY
2019-05-06 631-818-4XXX 4000–4999Assigned CORETEL NEW YORK, INC. - NY 1215 BABYLON NY
2019-05-06 631-818-5XXX 5000–5999Assigned CORETEL NEW YORK, INC. - NY 1215 BABYLON NY
2019-05-06 631-818-7XXX 7000–7999Assigned CORETEL NEW YORK, INC. - NY 1215 BABYLON NY
2019-05-06 631-818-8XXX 8000–8999Assigned CORETEL NEW YORK, INC. - NY 1215 BABYLON NY
2019-05-06 631-818-9XXX 9000–9999Assigned CORETEL NEW YORK, INC. - NY 1215 BABYLON NY
2019-05-06 631-847-3XXX 3000–3999Assigned CORETEL NEW YORK, INC. - NY 1215 FARMINGDL NY
2019-05-06 631-925-9XXX 9000–9999Assigned CORETEL NEW YORK, INC. - NY 1215 NORTHPORT NY
2019-05-06 631-927-7XXX 7000–7999Assigned CORETEL NEW YORK, INC. - NY 1215 FARMINGDL 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.