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
2019-08-29 570-908-7XXX 7000–7999Assigned COMCAST IP PHONE, LLC 318J PITTSTON PA
2019-08-28 570-722-4XXX 4000–4999Assigned TELNYX LLC 073H WHITEHAVEN PA
2019-08-28 570-921-8XXX 8000–8999Assigned METROPCS, INC. 5562 SCRANTON PA
2019-08-28 570-921-9XXX 9000–9999Assigned METROPCS, INC. 5562 SCRANTON PA
2019-08-28 570-995-4XXX 4000–4999Assigned METROPCS, INC. 5562 TROUT RUN PA
2019-08-21 570-882-4XXX 4000–4999Assigned ONVOY, LLC - PA 547E SAYRE PA
2019-08-21 570-882-5XXX 5000–5999Assigned ONVOY, LLC - PA 547E SAYRE PA
2019-08-21 570-918-3XXX 3000–3999Assigned ONVOY, LLC - PA 547E QUAKERLAKE PA
2019-08-14 570-331-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 KINGSTON PA
2019-07-29 570-734-7XXX 7000–7999Assigned ONVOY, LLC - PA 547E LAKEWOOD PA
2019-06-20 570-665-3XXX 3000–3999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - PA 7309 TUNKHANNCK PA
2019-06-20 570-697-7XXX 7000–7999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - PA 7309 WYOMING PA
2019-06-20 570-699-4XXX 4000–4999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - PA 7309 TOWANDA PA
2019-06-19 570-513-4XXX 4000–4999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - PA 7309 MANSFIELD PA
2019-05-28 570-953-2XXX 2000–2999Assigned PEERLESS NETWORK OF PENNSYLVANIA, LLC - PA 967E DANVILLE PA
2019-05-28 570-964-0XXX 0000–0999Assigned PEERLESS NETWORK OF PENNSYLVANIA, LLC - PA 967E SAYRE PA
2019-05-24 570-512-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - PA 7309 TROY PA
2019-05-21 570-936-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - PA 7309 CARBONDALE PA
2019-04-04 570-405-2XXX 2000–2999Assigned ONVOY, LLC - PA 547E ASHLAND PA
2019-04-04 570-405-3XXX 3000–3999Assigned ONVOY, LLC - PA 547E ASHLAND PA
2019-04-04 570-487-4XXX 4000–4999Assigned COMCAST IP PHONE, LLC 318J OLYPHANT PA
2019-03-26 570-832-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - PA 6392 MILFORD PA
2019-03-13 570-627-4XXX 4000–4999Assigned CORE COMMUNICATIONS, INC. - PA 3806 TOWANDA PA
2019-03-13 570-627-5XXX 5000–5999Assigned CORE COMMUNICATIONS, INC. - PA 3806 TOWANDA PA
2019-03-13 570-627-7XXX 7000–7999Assigned CORE COMMUNICATIONS, INC. - PA 3806 TOWANDA PA
2019-03-13 570-737-7XXX 7000–7999Assigned CORE COMMUNICATIONS, INC. - PA 3806 SPRINGVL PA
2019-03-13 570-737-8XXX 8000–8999Assigned CORE COMMUNICATIONS, INC. - PA 3806 SPRINGVL PA
2019-03-13 570-746-5XXX 5000–5999Assigned CORE COMMUNICATIONS, INC. - PA 3806 WYALUSING PA
2019-03-12 570-237-4XXX 4000–4999Assigned CORE COMMUNICATIONS, INC. - PA 3806 PITTSTON PA
2019-03-12 570-237-8XXX 8000–8999Assigned CORE COMMUNICATIONS, INC. - PA 3806 PITTSTON PA
2019-03-12 570-247-4XXX 4000–4999Assigned CORE COMMUNICATIONS, INC. - PA 3806 ROME PA
2019-03-12 570-247-6XXX 6000–6999Assigned CORE COMMUNICATIONS, INC. - PA 3806 ROME PA
2019-03-11 570-256-2XXX 2000–2999Assigned CORE COMMUNICATIONS, INC. - PA 3806 MUHLENBURG PA
2019-03-11 570-667-7XXX 7000–7999Assigned CORE COMMUNICATIONS, INC. - PA 3806 MUHLENBURG PA
2019-03-11 570-736-3XXX 3000–3999Assigned CORE COMMUNICATIONS, INC. - PA 3806 NANTICOKE PA
2019-03-11 570-736-4XXX 4000–4999Assigned CORE COMMUNICATIONS, INC. - PA 3806 NANTICOKE PA
2019-03-11 570-890-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - PA 7315 SAYRE PA
2019-03-08 570-376-6XXX 6000–6999Assigned CORE COMMUNICATIONS, INC. - PA 3806 MIDLEBYCTR PA
2019-03-08 570-532-6XXX 6000–6999Assigned CORE COMMUNICATIONS, INC. - PA 3806 LIBERTY PA
2019-03-08 570-545-4XXX 4000–4999Assigned CORE COMMUNICATIONS, INC. - PA 3806 MANSFIELD PA
2019-03-07 570-378-4XXX 4000–4999Assigned CORE COMMUNICATIONS, INC. - PA 3806 LAKEWINOLA PA
2019-03-07 570-732-6XXX 6000–6999Assigned CORE COMMUNICATIONS, INC. - PA 3806 JIM THORPE PA
2019-03-07 570-732-7XXX 7000–7999Assigned CORE COMMUNICATIONS, INC. - PA 3806 JIM THORPE PA
2019-03-07 570-744-7XXX 7000–7999Assigned CORE COMMUNICATIONS, INC. - PA 3806 LE RAYSVL PA
2019-03-07 570-827-7XXX 7000–7999Assigned CORE COMMUNICATIONS, INC. - PA 3806 LAWRENCEVL PA
2019-03-07 570-967-5XXX 5000–5999Assigned CORE COMMUNICATIONS, INC. - PA 3806 LAWSVILLE PA
2019-03-06 570-438-6XXX 6000–6999Assigned CORE COMMUNICATIONS, INC. - PA 3806 BROOKLYN PA
2019-03-06 570-438-8XXX 8000–8999Assigned CORE COMMUNICATIONS, INC. - PA 3806 BROOKLYN PA
2019-03-06 570-852-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 KINGSTON PA
2019-03-06 570-953-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 DANVILLE 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.