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
2006-11-09 631-560-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY 6959 BRENTWOOD NY
2006-11-09 631-560-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY 6959 BRENTWOOD NY
2006-11-03 631-638-6XXX 6000–6999Assigned PAETEC ITEL, LLC 829J STONYBROOK NY
2006-11-01 631-729-6XXX 6000–6999Assigned CSC VOICE, LLC 612K ATLANTIC NY
2006-10-30 631-569-5XXX 5000–5999Assigned CSC VOICE, LLC 612K PATCHOGUE NY
2006-10-23 631-899-4XXX 4000–4999Assigned CSC VOICE, LLC 612K SAG HARBOR NY
2006-10-19 631-991-1XXX 1000–1999Assigned METROPCS, INC. 5562 LINDENHST NY
2006-10-13 631-617-5XXX 5000–5999Assigned CSC VOICE, LLC 612K BRENTWOOD NY
2006-10-13 631-617-6XXX 6000–6999Assigned CSC VOICE, LLC 612K BRENTWOOD NY
2006-10-12 631-623-3XXX 3000–3999Assigned PAETEC ITEL, LLC 829J W COMMACK NY
2006-10-11 631-259-5XXX 5000–5999Assigned PAETEC ITEL, LLC 829J SOUTHAMPTN NY
2006-10-11 631-512-4XXX 4000–4999Assigned PAETEC ITEL, LLC 829J SELDEN NY
2006-10-11 631-602-4XXX 4000–4999Assigned PAETEC ITEL, LLC 829J SHELTER IS NY
2006-10-11 631-616-3XXX 3000–3999Assigned PAETEC ITEL, LLC 829J PECONIC NY
2006-10-11 631-808-4XXX 4000–4999Assigned PAETEC ITEL, LLC 829J SAG HARBOR NY
2006-10-11 631-876-9XXX 9000–9999Assigned PAETEC ITEL, LLC 829J SOUTHOLD NY
2006-10-09 631-354-8XXX 8000–8999Assigned PAETEC ITEL, LLC 829J MATTITUCK NY
2006-10-09 631-604-3XXX 3000–3999Assigned PAETEC ITEL, LLC 829J E HAMPTON NY
2006-10-09 631-613-7XXX 7000–7999Assigned PAETEC ITEL, LLC 829J BRIDGEMPTN NY
2006-10-09 631-887-7XXX 7000–7999Assigned PAETEC ITEL, LLC 829J HAMPTNBAYS NY
2006-10-06 631-655-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY 6959 RIVERHEAD NY
2006-10-06 631-655-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY 6959 RIVERHEAD NY
2006-10-06 631-655-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY 6959 RIVERHEAD NY
2006-09-29 631-247-9XXX 9000–9999Assigned PAETEC ITEL, LLC 829J FARMINGDL NY
2006-09-29 631-297-7XXX 7000–7999Assigned PAETEC ITEL, LLC 829J CENTRAISLP NY
2006-09-29 631-297-9XXX 9000–9999Assigned PAETEC ITEL, LLC 829J CENTRAISLP NY
2006-09-29 631-930-1XXX 1000–1999Assigned PAETEC ITEL, LLC 829J CENTRAISLP NY
2006-09-20 631-560-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY 6959 BRENTWOOD NY
2006-09-20 631-560-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY 6959 BRENTWOOD NY
2006-09-20 631-560-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY 6959 BRENTWOOD NY
2006-09-20 631-560-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY 6959 BRENTWOOD NY
2006-09-12 631-487-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY 6959 BRENTWOOD NY
2006-09-12 631-487-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY 6959 BRENTWOOD NY
2006-09-12 631-487-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY 6959 BRENTWOOD NY
2006-08-29 631-456-5XXX 5000–5999Assigned CSC VOICE, LLC 612K BRENTWOOD NY
2006-08-29 631-593-8XXX 8000–8999Assigned CABLEVISION LIGHTPATH, INC. - NY 7126 GREENPORT NY
2006-08-24 631-456-6XXX 6000–6999Assigned METROPCS, INC. 5562 BRENTWOOD NY
2006-08-24 631-456-7XXX 7000–7999Assigned METROPCS, INC. 5562 BRENTWOOD NY
2006-08-23 631-509-5XXX 5000–5999Assigned CSC VOICE, LLC 612K PTJEFFERSN NY
2006-08-23 631-509-6XXX 6000–6999Assigned CSC VOICE, LLC 612K PTJEFFERSN NY
2006-08-21 631-905-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY 6959 RIVERHEAD NY
2006-08-21 631-905-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY 6959 RIVERHEAD NY
2006-08-15 631-512-8XXX 8000–8999Assigned METROPCS, INC. 5562 SELDEN NY
2006-08-15 631-991-5XXX 5000–5999Assigned METROPCS, INC. 5562 LINDENHST NY
2006-08-14 631-245-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 BRENTWOOD NY
2006-08-14 631-413-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 SELDEN NY
2006-08-14 631-413-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 SELDEN NY
2006-08-14 631-413-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 SELDEN NY
2006-08-14 631-413-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 SELDEN NY
2006-08-14 631-413-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 SELDEN 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.