NumberResearch Membership · Data 09/20/2026

Recent thousands-block assignments

8 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 570
MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7
ONVOY, LLC - PA 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
2005-05-27 570-285-3XXX 3000–3999Assigned SERVICE ELECTRIC TELEPHONE COMPANY, LLC 8320 KINGSTON PA
2005-05-27 570-317-2XXX 2000–2999Assigned SERVICE ELECTRIC TELEPHONE COMPANY, LLC 8320 BLOOMSBURG PA
2005-05-27 570-356-6XXX 6000–6999Assigned SERVICE ELECTRIC TELEPHONE COMPANY, LLC 8320 CATAWISSA PA
2005-05-27 570-373-2XXX 2000–2999Assigned SERVICE ELECTRIC TELEPHONE COMPANY, LLC 8320 KULPMONT PA
2005-05-27 570-497-4XXX 4000–4999Assigned SERVICE ELECTRIC TELEPHONE COMPANY, LLC 8320 HAZLETON PA
2005-05-27 570-554-4XXX 4000–4999Assigned SERVICE ELECTRIC TELEPHONE COMPANY, LLC 8320 MT CARMEL PA
2005-05-27 570-636-8XXX 8000–8999Assigned SERVICE ELECTRIC TELEPHONE COMPANY, LLC 8320 FREELAND PA
2005-05-27 570-773-5XXX 5000–5999Assigned SERVICE ELECTRIC TELEPHONE COMPANY, LLC 8320 MAHANOY CY PA
2005-05-27 570-794-6XXX 6000–6999Assigned SERVICE ELECTRIC TELEPHONE COMPANY, LLC 8320 FRACKVILLE PA
2005-05-27 570-929-7XXX 7000–7999Assigned SERVICE ELECTRIC TELEPHONE COMPANY, LLC 8320 MCADOO PA
2005-05-27 570-985-1XXX 1000–1999Assigned SERVICE ELECTRIC TELEPHONE COMPANY, LLC 8320 ASHLAND PA
2005-05-11 570-274-9XXX 9000–9999Assigned D&E/OMNIPOINT WIREL JOINT VENT LP DBA PCS ONE 6846 SUNBURY PA
2005-05-10 570-367-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - PA 6392 LOCK HAVEN PA
2005-05-10 570-447-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - PA 6392 WILLIAMSPT PA
2005-05-10 570-447-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - PA 6392 WILLIAMSPT PA
2005-05-10 570-484-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - PA 6392 LOCK HAVEN PA
2005-04-28 570-706-3XXX 3000–3999Assigned CTSI, INC. - PA 7513 WILKSBARRE PA
2005-04-25 570-244-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 WILLIAMSPT PA
2005-04-25 570-447-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 WILLIAMSPT PA
2005-04-14 570-412-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - PA 6392 MILTON PA
2005-04-14 570-447-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - PA 6392 WILLIAMSPT PA
2005-04-14 570-706-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - PA 6392 WILKSBARRE PA
2005-04-14 570-854-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - PA 6392 BLOOMSBURG PA
2005-04-14 570-872-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - PA 6392 STROUDSBG PA
2005-04-14 570-872-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - PA 6392 STROUDSBG PA
2005-04-06 570-213-5XXX 5000–5999Assigned LEVEL 3 COMMUNICATIONS, LLC - PA 4007 STROUDSBG PA
2005-03-22 570-906-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 SCRANTON PA
2005-03-18 570-832-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - PA 4007 MILFORD PA
2005-03-18 570-877-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - PA 6392 SCRANTON PA
2005-03-18 570-877-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - PA 6392 SCRANTON PA
2005-03-18 570-877-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - PA 6392 SCRANTON PA
2005-03-17 570-766-7XXX 7000–7999Assigned OMNIPOINT COMMUNICATIONS ENTERPRISES, LP 6626 CARBONDALE PA
2005-03-15 570-428-7XXX 7000–7999Assigned WINDSTREAM D & E SYSTEMS, INC. - PA 4114 MILTON PA
2005-03-11 570-863-5XXX 5000–5999Assigned WINDSTREAM D & E SYSTEMS, INC. - PA 4114 SUNBURY PA
2005-03-08 570-237-2XXX 2000–2999Assigned OMNIPOINT COMMUNICATIONS ENTERPRISES, LP 6626 PITTSTON PA
2005-03-08 570-872-5XXX 5000–5999Assigned OMNIPOINT COMMUNICATIONS ENTERPRISES, LP 6626 STROUDSBG PA
2005-03-07 570-367-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - PA 6392 LOCK HAVEN PA
2005-03-07 570-367-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - PA 6392 LOCK HAVEN PA
2005-03-07 570-371-1XXX 1000–1999Assigned METROPCS, INC. 5562 WILKSBARRE PA
2005-02-28 570-877-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 SCRANTON PA
2005-02-28 570-877-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 SCRANTON PA
2005-02-17 570-504-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 SCRANTON PA
2005-02-17 570-504-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 SCRANTON PA
2005-02-17 570-561-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 SCRANTON PA
2005-02-17 570-704-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 WILKSBARRE PA
2005-02-17 570-704-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 WILKSBARRE PA
2005-02-17 570-704-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 WILKSBARRE PA
2005-02-17 570-704-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 WILKSBARRE PA
2005-02-15 570-433-8XXX 8000–8999Assigned LEVEL 3 COMMUNICATIONS, LLC - PA 4007 LOYALSOCK PA
2005-02-15 570-998-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - PA 4007 TROUT RUN PA

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.