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 347
OMNIPOINT COMMUNICATIONS, INC. - NY 2064
METROPCS, INC. 1040
BANDWIDTH.COM CLEC, LLC - NY 794
CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY 525
NEW CINGULAR WIRELESS PCS, LLC - DC 480
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
2005-02-22 347-417-5XXX 5000–5999Assigned LEVEL 3 COMMUNICATIONS, LLC - NY 4006 NWYRCYZN06 NY
2005-02-22 347-527-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - NY 4006 NWYRCYZN08 NY
2005-02-22 347-561-3XXX 3000–3999Assigned TWC IP ENABLED SERVICES, LLC 793K NWYRCYZN10 NY
2005-02-22 347-561-4XXX 4000–4999Assigned TWC IP ENABLED SERVICES, LLC 793K NWYRCYZN10 NY
2005-02-22 347-561-5XXX 5000–5999Assigned TWC IP ENABLED SERVICES, LLC 793K NWYRCYZN10 NY
2005-02-22 347-561-6XXX 6000–6999Assigned TWC IP ENABLED SERVICES, LLC 793K NWYRCYZN10 NY
2005-02-22 347-813-4XXX 4000–4999Assigned TWC IP ENABLED SERVICES, LLC 793K NWYRCYZN08 NY
2005-02-18 347-407-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - NY 4006 NWYRCYZN06 NY
2005-02-18 347-407-8XXX 8000–8999Assigned LEVEL 3 COMMUNICATIONS, LLC - NY 4006 NWYRCYZN06 NY
2005-02-18 347-407-9XXX 9000–9999Assigned LEVEL 3 COMMUNICATIONS, LLC - NY 4006 NWYRCYZN06 NY
2005-02-16 347-398-6XXX 6000–6999Assigned METROPCS, INC. 5562 NWYRCYZN04 NY
2005-02-16 347-398-7XXX 7000–7999Assigned OMNIPOINT COMMUNICATIONS, INC. - NY 6622 NWYRCYZN04 NY
2005-02-16 347-589-2XXX 2000–2999Assigned OMNIPOINT COMMUNICATIONS, INC. - NY 6622 NWYRCYZN05 NY
2005-02-16 347-589-3XXX 3000–3999Assigned OMNIPOINT COMMUNICATIONS, INC. - NY 6622 NWYRCYZN05 NY
2005-02-16 347-589-4XXX 4000–4999Assigned OMNIPOINT COMMUNICATIONS, INC. - NY 6622 NWYRCYZN05 NY
2005-02-16 347-589-5XXX 5000–5999Assigned OMNIPOINT COMMUNICATIONS, INC. - NY 6622 NWYRCYZN05 NY
2005-02-16 347-589-9XXX 9000–9999Assigned OMNIPOINT COMMUNICATIONS, INC. - NY 6622 NWYRCYZN05 NY
2005-02-16 347-621-9XXX 9000–9999Assigned METROPCS, INC. 5562 NWYRCYZN04 NY
2005-02-15 347-576-3XXX 3000–3999Assigned METROPCS, INC. 5562 NWYRCYZN07 NY
2005-02-15 347-576-4XXX 4000–4999Assigned METROPCS, INC. 5562 NWYRCYZN07 NY
2005-02-15 347-576-5XXX 5000–5999Assigned METROPCS, INC. 5562 NWYRCYZN07 NY
2005-02-15 347-576-9XXX 9000–9999Assigned OMNIPOINT COMMUNICATIONS, INC. - NY 6622 NWYRCYZN07 NY
2005-02-14 347-405-5XXX 5000–5999Assigned CSC VOICE, LLC 612K NWYRCYZN06 NY
2005-02-14 347-405-6XXX 6000–6999Assigned CSC VOICE, LLC 612K NWYRCYZN06 NY
2005-02-14 347-405-7XXX 7000–7999Assigned CSC VOICE, LLC 612K NWYRCYZN06 NY
2005-02-14 347-405-8XXX 8000–8999Assigned CSC VOICE, LLC 612K NWYRCYZN06 NY
2005-02-14 347-405-9XXX 9000–9999Assigned CSC VOICE, LLC 612K NWYRCYZN06 NY
2005-02-14 347-406-5XXX 5000–5999Assigned CSC VOICE, LLC 612K NWYRCYZN06 NY
2005-02-14 347-406-6XXX 6000–6999Assigned CSC VOICE, LLC 612K NWYRCYZN06 NY
2005-02-14 347-406-7XXX 7000–7999Assigned CSC VOICE, LLC 612K NWYRCYZN06 NY
2005-02-14 347-406-8XXX 8000–8999Assigned CSC VOICE, LLC 612K NWYRCYZN06 NY
2005-02-14 347-406-9XXX 9000–9999Assigned CSC VOICE, LLC 612K NWYRCYZN06 NY
2005-02-10 347-226-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 NWYRCYZN03 NY
2005-02-10 347-226-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 NWYRCYZN03 NY
2005-02-10 347-226-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 NWYRCYZN03 NY
2005-02-10 347-291-2XXX 2000–2999Assigned OMNIPOINT COMMUNICATIONS, INC. - NY 6622 NWYRCYZN03 NY
2005-02-10 347-291-3XXX 3000–3999Assigned OMNIPOINT COMMUNICATIONS, INC. - NY 6622 NWYRCYZN03 NY
2005-02-10 347-291-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 NWYRCYZN03 NY
2005-02-10 347-291-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 NWYRCYZN03 NY
2005-02-10 347-291-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 NWYRCYZN03 NY
2005-02-10 347-291-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 NWYRCYZN03 NY
2005-02-09 347-621-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY 6959 NWYRCYZN04 NY
2005-02-08 347-220-4XXX 4000–4999Assigned OMNIPOINT COMMUNICATIONS, INC. - NY 6622 NWYRCYZN04 NY
2005-02-08 347-282-9XXX 9000–9999Assigned OMNIPOINT COMMUNICATIONS, INC. - NY 6622 NWYRCYZN04 NY
2005-02-08 347-329-6XXX 6000–6999Assigned OMNIPOINT COMMUNICATIONS, INC. - NY 6622 NWYRCYZN03 NY
2005-02-08 347-329-7XXX 7000–7999Assigned METROPCS, INC. 5562 NWYRCYZN03 NY
2005-02-08 347-329-8XXX 8000–8999Assigned METROPCS, INC. 5562 NWYRCYZN03 NY
2005-02-08 347-394-1XXX 1000–1999Assigned PAETEC ITEL, LLC 829J NWYRCYZN07 NY
2005-02-08 347-621-0XXX 0000–0999Assigned CSC VOICE, LLC 612K NWYRCYZN04 NY
2005-02-08 347-621-1XXX 1000–1999Assigned CSC VOICE, LLC 612K NWYRCYZN04 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.