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
2004-08-18 347-431-5XXX 5000–5999Assigned OMNIPOINT COMMUNICATIONS, INC. - NY 6622 NWYRCYZN03 NY
2004-08-18 347-431-6XXX 6000–6999Assigned OMNIPOINT COMMUNICATIONS, INC. - NY 6622 NWYRCYZN03 NY
2004-08-17 347-297-5XXX 5000–5999Assigned PEERLESS NETWORK OF NEW YORK, LLC - NY 155E NWYRCYZN03 NY
2004-08-16 347-273-0XXX 0000–0999Assigned OMNIPOINT COMMUNICATIONS, INC. - NY 6622 NWYRCYZN15 NY
2004-08-16 347-273-5XXX 5000–5999Assigned OMNIPOINT COMMUNICATIONS, INC. - NY 6622 NWYRCYZN15 NY
2004-08-16 347-278-6XXX 6000–6999Assigned OMNIPOINT COMMUNICATIONS, INC. - NY 6622 NWYRCYZN06 NY
2004-08-16 347-278-7XXX 7000–7999Assigned OMNIPOINT COMMUNICATIONS, INC. - NY 6622 NWYRCYZN06 NY
2004-08-11 347-293-8XXX 8000–8999Assigned CSC VOICE, LLC 612K NWYRCYZN04 NY
2004-08-09 347-278-3XXX 3000–3999Assigned OMNIPOINT COMMUNICATIONS, INC. - NY 6622 NWYRCYZN06 NY
2004-08-09 347-278-4XXX 4000–4999Assigned OMNIPOINT COMMUNICATIONS, INC. - NY 6622 NWYRCYZN06 NY
2004-07-27 347-278-0XXX 0000–0999Assigned OMNIPOINT COMMUNICATIONS, INC. - NY 6622 NWYRCYZN06 NY
2004-07-27 347-278-1XXX 1000–1999Assigned OMNIPOINT COMMUNICATIONS, INC. - NY 6622 NWYRCYZN06 NY
2004-07-27 347-278-2XXX 2000–2999Assigned OMNIPOINT COMMUNICATIONS, INC. - NY 6622 NWYRCYZN06 NY
2004-07-26 347-558-7XXX 7000–7999Assigned METROPCS, INC. 5562 NWYRCYZN10 NY
2004-07-26 347-558-8XXX 8000–8999Assigned METROPCS, INC. 5562 NWYRCYZN10 NY
2004-07-14 347-220-5XXX 5000–5999Assigned OMNIPOINT COMMUNICATIONS, INC. - NY 6622 NWYRCYZN04 NY
2004-07-14 347-436-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY 6959 NWYRCYZN06 NY
2004-07-14 347-436-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY 6959 NWYRCYZN06 NY
2004-07-13 347-278-9XXX 9000–9999Assigned OMNIPOINT COMMUNICATIONS, INC. - NY 6622 NWYRCYZN06 NY
2004-07-07 347-225-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 NWYRCYZN06 NY
2004-07-07 347-225-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 NWYRCYZN06 NY
2004-07-07 347-225-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 NWYRCYZN06 NY
2004-07-07 347-225-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 NWYRCYZN06 NY
2004-07-07 347-225-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 NWYRCYZN06 NY
2004-07-07 347-225-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 NWYRCYZN06 NY
2004-07-07 347-225-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 NWYRCYZN06 NY
2004-07-06 347-220-2XXX 2000–2999Assigned OMNIPOINT COMMUNICATIONS, INC. - NY 6622 NWYRCYZN04 NY
2004-07-06 347-220-3XXX 3000–3999Assigned OMNIPOINT COMMUNICATIONS, INC. - NY 6622 NWYRCYZN04 NY
2004-07-06 347-224-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 NWYRCYZN05 NY
2004-06-30 347-539-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - NY 4006 NWYRCYZN12 NY
2004-06-30 347-594-5XXX 5000–5999Assigned LEVEL 3 COMMUNICATIONS, LLC - NY 4006 NWYRCYZN11 NY
2004-06-30 347-682-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - NY 4006 NWYRCYZN14 NY
2004-06-30 347-826-3XXX 3000–3999Assigned LEVEL 3 COMMUNICATIONS, LLC - NY 4006 NWYRCYZN13 NY
2004-06-30 347-983-5XXX 5000–5999Assigned LEVEL 3 COMMUNICATIONS, LLC - NY 4006 NWYRCYZN15 NY
2004-06-29 347-869-7XXX 7000–7999Assigned METROPCS, INC. 5562 NWYRCYZN12 NY
2004-06-10 347-534-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY 6959 NWYRCYZN06 NY
2004-06-04 347-332-3XXX 3000–3999Assigned OMNIPOINT COMMUNICATIONS, INC. - NY 6622 NWYRCYZN05 NY
2004-06-03 347-225-0XXX 0000–0999Assigned PAETEC ITEL, LLC 829J NWYRCYZN06 NY
2004-06-03 347-225-8XXX 8000–8999Assigned PAETEC ITEL, LLC 829J NWYRCYZN06 NY
2004-06-03 347-225-9XXX 9000–9999Assigned PAETEC ITEL, LLC 829J NWYRCYZN06 NY
2004-06-01 347-341-2XXX 2000–2999Assigned OMNIPOINT COMMUNICATIONS, INC. - NY 6622 NWYRCYZN05 NY
2004-06-01 347-341-3XXX 3000–3999Assigned OMNIPOINT COMMUNICATIONS, INC. - NY 6622 NWYRCYZN05 NY
2004-05-24 347-431-1XXX 1000–1999Assigned CSC VOICE, LLC 612K NWYRCYZN03 NY
2004-05-19 347-341-5XXX 5000–5999Assigned CSC VOICE, LLC 612K NWYRCYZN05 NY
2004-05-19 347-427-6XXX 6000–6999Assigned CSC VOICE, LLC 612K NWYRCYZN05 NY
2004-05-19 347-427-7XXX 7000–7999Assigned CSC VOICE, LLC 612K NWYRCYZN05 NY
2004-05-14 347-275-6XXX 6000–6999Assigned CSC VOICE, LLC 612K NWYRCYZN05 NY
2004-05-14 347-275-7XXX 7000–7999Assigned CSC VOICE, LLC 612K NWYRCYZN05 NY
2004-05-14 347-275-8XXX 8000–8999Assigned CSC VOICE, LLC 612K NWYRCYZN05 NY
2004-05-14 347-275-9XXX 9000–9999Assigned CSC VOICE, LLC 612K NWYRCYZN05 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.