NumberResearch Membership · Data 09/19/2026

Recent thousands-block assignments

45 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, last 30 days — NPA 640
NEW CINGULAR WIRELESS PCS, LLC - DC 26
ONVOY, LLC - NJ 15
EXIANT COMMUNICATIONS LLC 2
U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 1
AHOI LLC 1
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
2024-01-16 640-252-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NJ 6391 PRINCETON NJ
2023-12-18 640-243-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 TRENTON NJ
2023-11-30 640-253-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 LAWRENCEVL NJ
2023-11-30 640-253-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 LAWRENCEVL NJ
2023-11-30 640-253-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 LAWRENCEVL NJ
2023-11-30 640-253-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 LAWRENCEVL NJ
2023-11-30 640-253-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 LAWRENCEVL NJ
2023-11-30 640-253-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 LAWRENCEVL NJ
2023-11-30 640-253-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 LAWRENCEVL NJ
2023-11-30 640-253-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 LAWRENCEVL NJ
2023-11-30 640-253-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 LAWRENCEVL NJ
2023-11-29 640-345-5XXX 5000–5999Assigned METROPCS, INC. 5562 SEAIS CITY NJ
2023-11-16 640-246-6XXX 6000–6999Assigned VONAGE AMERICA LLC 197D TRENTON NJ
2023-11-15 640-252-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NJ 6391 PRINCETON NJ
2023-11-09 640-246-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 TRENTON NJ
2023-11-09 640-250-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NJ 6391 CRANBURY NJ
2023-11-09 640-250-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NJ 6391 CRANBURY NJ
2023-10-04 640-866-3XXX 3000–3999Assigned ONVOY, LLC - NJ 637C EGG HARBOR NJ
2023-10-04 640-866-4XXX 4000–4999Assigned ONVOY, LLC - NJ 637C EGG HARBOR NJ
2023-10-04 640-866-5XXX 5000–5999Assigned ONVOY, LLC - NJ 637C EGG HARBOR NJ
2023-10-04 640-866-7XXX 7000–7999Assigned ONVOY, LLC - NJ 637C EGG HARBOR NJ
2023-10-04 640-866-9XXX 9000–9999Assigned ONVOY, LLC - NJ 637C EGG HARBOR NJ
2023-10-02 640-223-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 PEMBERTON NJ
2023-09-27 640-249-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NJ 6391 NEW EGYPT NJ
2023-09-21 640-229-0XXX 0000–0999Assigned ONVOY, LLC - NJ 637C CRANBURY NJ
2023-09-21 640-231-0XXX 0000–0999Assigned ONVOY, LLC - NJ 637C BARNEGAT NJ
2023-09-21 640-231-1XXX 1000–1999Assigned ONVOY, LLC - NJ 637C BARNEGAT NJ
2023-09-21 640-232-0XXX 0000–0999Assigned ONVOY, LLC - NJ 637C BURLINGTON NJ
2023-09-21 640-232-1XXX 1000–1999Assigned ONVOY, LLC - NJ 637C BURLINGTON NJ
2023-09-21 640-233-0XXX 0000–0999Assigned ONVOY, LLC - NJ 637C MERCERVL NJ
2023-09-21 640-233-1XXX 1000–1999Assigned ONVOY, LLC - NJ 637C MERCERVL NJ
2023-09-21 640-234-0XXX 0000–0999Assigned ONVOY, LLC - NJ 637C PLAINSBORO NJ
2023-09-21 640-238-0XXX 0000–0999Assigned ONVOY, LLC - NJ 637C BURLINGTON NJ
2023-09-21 640-246-7XXX 7000–7999Assigned ONVOY, LLC - NJ 637C TRENTON NJ
2023-09-21 640-246-8XXX 8000–8999Assigned ONVOY, LLC - NJ 637C TRENTON NJ
2023-09-21 640-867-1XXX 1000–1999Assigned ONVOY, LLC - NJ 637C PRINCETON NJ
2023-09-21 640-867-8XXX 8000–8999Assigned ONVOY, LLC - NJ 637C PRINCETON NJ
2023-09-18 640-241-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 ATLNTIC CY NJ
2023-09-05 640-248-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 MOUNTHOLLY NJ
2023-09-05 640-867-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 PRINCETON NJ
2023-08-29 640-234-7XXX 7000–7999Assigned PEERLESS NETWORK OF NEW JERSEY, LLC - NJ 264F PLAINSBORO NJ
2023-08-28 640-235-1XXX 1000–1999Assigned COMMIO, LLC 939H LAWRENCEVL NJ
2023-08-28 640-235-2XXX 2000–2999Assigned COMMIO, LLC 939H LAWRENCEVL NJ
2023-08-28 640-235-3XXX 3000–3999Assigned COMMIO, LLC 939H LAWRENCEVL NJ
2023-08-28 640-235-4XXX 4000–4999Assigned COMMIO, LLC 939H LAWRENCEVL NJ
2023-08-28 640-235-5XXX 5000–5999Assigned COMMIO, LLC 939H LAWRENCEVL NJ
2023-08-23 640-251-9XXX 9000–9999Assigned OMNIPOINT COMMUNICATIONS ENTERPRISES, LP 6626 WILDWOOD NJ
2023-08-16 640-246-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 TRENTON NJ
2023-08-16 640-248-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NJ 6391 MOUNTHOLLY NJ
2023-08-10 640-248-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NJ 6391 MOUNTHOLLY NJ

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.