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
2006-08-14 631-612-4XXX 4000–4999Assigned OMNIPOINT COMMUNICATIONS, INC. - NY 6622 BABYLON NY
2006-08-08 631-574-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 RIVERHEAD NY
2006-07-31 631-548-5XXX 5000–5999Assigned LEVEL 3 COMMUNICATIONS, LLC - NY 4006 RIVERHEAD NY
2006-07-27 631-206-6XXX 6000–6999Assigned LEVEL 3 COMMUNICATIONS, LLC - NY 4006 BAY SHORE NY
2006-07-26 631-649-3XXX 3000–3999Assigned PAETEC ITEL, LLC 829J BABYLON NY
2006-07-21 631-791-7XXX 7000–7999Assigned PAETEC ITEL, LLC 829J PTJEFFERSN NY
2006-07-18 631-487-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY 6959 BRENTWOOD NY
2006-07-18 631-487-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY 6959 BRENTWOOD NY
2006-07-18 631-487-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY 6959 BRENTWOOD NY
2006-07-18 631-487-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY 6959 BRENTWOOD NY
2006-07-18 631-487-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY 6959 BRENTWOOD NY
2006-07-18 631-487-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY 6959 BRENTWOOD NY
2006-07-18 631-487-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY 6959 BRENTWOOD NY
2006-07-12 631-702-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - NY 4006 SOUTHAMPTN NY
2006-07-12 631-880-7XXX 7000–7999Assigned CSC VOICE, LLC 612K SELDEN NY
2006-07-07 631-702-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 SOUTHAMPTN NY
2006-07-07 631-903-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 SOUTHAMPTN NY
2006-06-28 631-702-4XXX 4000–4999Assigned TC SYSTEMS, INC. - NY 7140 SOUTHAMPTN NY
2006-06-28 631-808-2XXX 2000–2999Assigned TC SYSTEMS, INC. - NY 7140 SAG HARBOR NY
2006-06-28 631-876-8XXX 8000–8999Assigned TC SYSTEMS, INC. - NY 7140 SOUTHOLD NY
2006-06-12 631-768-7XXX 7000–7999Assigned PAETEC ITEL, LLC 829J FARMINGDL NY
2006-06-07 631-894-8XXX 8000–8999Assigned METROPCS, INC. 5562 BAY SHORE NY
2006-06-01 631-905-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY 6959 RIVERHEAD NY
2006-06-01 631-905-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY 6959 RIVERHEAD NY
2006-05-30 631-456-8XXX 8000–8999Assigned METROPCS, INC. 5562 BRENTWOOD NY
2006-05-26 631-205-8XXX 8000–8999Assigned OMNIPOINT COMMUNICATIONS, INC. - NY 6622 YAPHANK NY
2006-05-26 631-512-9XXX 9000–9999Assigned METROPCS, INC. 5562 SELDEN NY
2006-05-24 631-504-6XXX 6000–6999Assigned CSC VOICE, LLC 612K YAPHANK NY
2006-05-17 631-712-7XXX 7000–7999Assigned PAETEC ITEL, LLC 829J FARMINGDL NY
2006-05-17 631-712-8XXX 8000–8999Assigned PAETEC ITEL, LLC 829J FARMINGDL NY
2006-05-17 631-712-9XXX 9000–9999Assigned PAETEC ITEL, LLC 829J FARMINGDL NY
2006-05-10 631-612-1XXX 1000–1999Assigned OMNIPOINT COMMUNICATIONS, INC. - NY 6622 BABYLON NY
2006-04-19 631-604-5XXX 5000–5999Assigned CSC VOICE, LLC 612K E HAMPTON NY
2006-04-19 631-662-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 HUNTINGTON NY
2006-04-19 631-662-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 HUNTINGTON NY
2006-04-19 631-662-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 HUNTINGTON NY
2006-04-11 631-602-3XXX 3000–3999Assigned LEVEL 3 COMMUNICATIONS, LLC - NY 4006 SHELTER IS NY
2006-04-11 631-625-3XXX 3000–3999Assigned LEVEL 3 COMMUNICATIONS, LLC - NY 4006 ORIENT NY
2006-03-31 631-559-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 BRENTWOOD NY
2006-03-31 631-559-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 BRENTWOOD NY
2006-03-31 631-559-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 BRENTWOOD NY
2006-03-31 631-559-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 BRENTWOOD NY
2006-03-31 631-604-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - NY 4006 E HAMPTON NY
2006-03-27 631-704-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 BRENTWOOD NY
2006-03-27 631-704-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 BRENTWOOD NY
2006-03-27 631-704-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 BRENTWOOD NY
2006-03-27 631-704-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 BRENTWOOD NY
2006-03-27 631-965-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 RIVERHEAD NY
2006-03-27 631-965-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 RIVERHEAD NY
2006-03-27 631-965-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 RIVERHEAD 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.