NumberResearch Membership · Data 09/20/2026

Recent thousands-block assignments

7 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 267
ONVOY, LLC - PA 3
NEW CINGULAR WIRELESS PCS, LLC - DC 2
CELLCO PARTNERSHIP DBA VERIZON WIRELESS - PA 1
AHOI LLC 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
2018-10-15 267-557-9XXX 9000–9999Assigned CORE COMMUNICATIONS, INC. - PA 3806 PHPHSBZN42 PA
2018-10-15 267-594-0XXX 0000–0999Assigned CORE COMMUNICATIONS, INC. - PA 3806 PHPHSBZN44 PA
2018-10-15 267-695-0XXX 0000–0999Assigned CORE COMMUNICATIONS, INC. - PA 3806 LINELXNGTN PA
2018-10-15 267-705-1XXX 1000–1999Assigned CORE COMMUNICATIONS, INC. - PA 3806 PHPHSBZN33 PA
2018-10-15 267-705-3XXX 3000–3999Assigned CORE COMMUNICATIONS, INC. - PA 3806 PHPHSBZN33 PA
2018-10-15 267-705-7XXX 7000–7999Assigned CORE COMMUNICATIONS, INC. - PA 3806 PHPHSBZN33 PA
2018-10-15 267-705-8XXX 8000–8999Assigned CORE COMMUNICATIONS, INC. - PA 3806 PHPHSBZN33 PA
2018-10-15 267-705-9XXX 9000–9999Assigned CORE COMMUNICATIONS, INC. - PA 3806 PHPHSBZN33 PA
2018-10-15 267-720-3XXX 3000–3999Assigned CORE COMMUNICATIONS, INC. - PA 3806 PHPHSBZN44 PA
2018-10-15 267-720-4XXX 4000–4999Assigned CORE COMMUNICATIONS, INC. - PA 3806 PHPHSBZN44 PA
2018-10-15 267-720-6XXX 6000–6999Assigned CORE COMMUNICATIONS, INC. - PA 3806 PHPHSBZN44 PA
2018-10-15 267-720-7XXX 7000–7999Assigned CORE COMMUNICATIONS, INC. - PA 3806 PHPHSBZN44 PA
2018-10-15 267-720-8XXX 8000–8999Assigned CORE COMMUNICATIONS, INC. - PA 3806 PHPHSBZN44 PA
2018-10-15 267-851-9XXX 9000–9999Assigned CORE COMMUNICATIONS, INC. - PA 3806 PHPHSBZN38 PA
2018-10-15 267-859-1XXX 1000–1999Assigned CORE COMMUNICATIONS, INC. - PA 3806 PHPHSBZN42 PA
2018-10-15 267-859-3XXX 3000–3999Assigned CORE COMMUNICATIONS, INC. - PA 3806 PHPHSBZN42 PA
2018-10-15 267-859-5XXX 5000–5999Assigned CORE COMMUNICATIONS, INC. - PA 3806 PHPHSBZN42 PA
2018-10-15 267-859-6XXX 6000–6999Assigned CORE COMMUNICATIONS, INC. - PA 3806 PHPHSBZN42 PA
2018-10-15 267-878-1XXX 1000–1999Assigned CORE COMMUNICATIONS, INC. - PA 3806 PHPHSBZN42 PA
2018-10-15 267-878-2XXX 2000–2999Assigned CORE COMMUNICATIONS, INC. - PA 3806 PHPHSBZN42 PA
2018-10-15 267-878-5XXX 5000–5999Assigned CORE COMMUNICATIONS, INC. - PA 3806 PHPHSBZN42 PA
2018-10-15 267-878-6XXX 6000–6999Assigned CORE COMMUNICATIONS, INC. - PA 3806 PHPHSBZN42 PA
2018-10-15 267-913-0XXX 0000–0999Assigned CORE COMMUNICATIONS, INC. - PA 3806 PHPHSBZN38 PA
2018-10-15 267-913-1XXX 1000–1999Assigned CORE COMMUNICATIONS, INC. - PA 3806 PHPHSBZN38 PA
2018-10-15 267-913-4XXX 4000–4999Assigned CORE COMMUNICATIONS, INC. - PA 3806 PHPHSBZN38 PA
2018-10-15 267-913-6XXX 6000–6999Assigned CORE COMMUNICATIONS, INC. - PA 3806 PHPHSBZN38 PA
2018-10-15 267-913-7XXX 7000–7999Assigned CORE COMMUNICATIONS, INC. - PA 3806 PHPHSBZN38 PA
2018-10-15 267-913-8XXX 8000–8999Assigned CORE COMMUNICATIONS, INC. - PA 3806 PHPHSBZN38 PA
2018-10-15 267-913-9XXX 9000–9999Assigned CORE COMMUNICATIONS, INC. - PA 3806 PHPHSBZN38 PA
2018-10-15 267-955-7XXX 7000–7999Assigned CORE COMMUNICATIONS, INC. - PA 3806 LINELXNGTN PA
2018-10-15 267-955-8XXX 8000–8999Assigned CORE COMMUNICATIONS, INC. - PA 3806 LINELXNGTN PA
2018-10-15 267-956-0XXX 0000–0999Assigned CORE COMMUNICATIONS, INC. - PA 3806 LINELXNGTN PA
2018-10-11 267-509-1XXX 1000–1999Assigned CORE COMMUNICATIONS, INC. - PA 3806 BEDMINSTER PA
2018-10-11 267-509-2XXX 2000–2999Assigned CORE COMMUNICATIONS, INC. - PA 3806 BEDMINSTER PA
2018-10-11 267-842-2XXX 2000–2999Assigned CORE COMMUNICATIONS, INC. - PA 3806 DOYLESTOWN PA
2018-10-11 267-842-3XXX 3000–3999Assigned CORE COMMUNICATIONS, INC. - PA 3806 DOYLESTOWN PA
2018-10-11 267-842-4XXX 4000–4999Assigned CORE COMMUNICATIONS, INC. - PA 3806 DOYLESTOWN PA
2018-10-11 267-842-5XXX 5000–5999Assigned CORE COMMUNICATIONS, INC. - PA 3806 DOYLESTOWN PA
2018-10-11 267-842-6XXX 6000–6999Assigned CORE COMMUNICATIONS, INC. - PA 3806 DOYLESTOWN PA
2018-10-11 267-842-7XXX 7000–7999Assigned CORE COMMUNICATIONS, INC. - PA 3806 DOYLESTOWN PA
2018-10-11 267-842-9XXX 9000–9999Assigned CORE COMMUNICATIONS, INC. - PA 3806 DOYLESTOWN PA
2018-10-10 267-742-0XXX 0000–0999Assigned METROPCS, INC. 5562 DOYLESTOWN PA
2018-10-03 267-951-2XXX 2000–2999Assigned COMCAST IP PHONE, LLC 318J PHLDLPHZN1 PA
2018-10-01 267-951-0XXX 0000–0999Assigned NUSO, LLC 551G PHLDLPHZN1 PA
2018-10-01 267-951-1XXX 1000–1999Assigned NUSO, LLC 551G PHLDLPHZN1 PA
2018-09-27 267-764-1XXX 1000–1999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 PHLDLPHZN1 PA
2018-09-27 267-764-2XXX 2000–2999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 PHLDLPHZN1 PA
2018-09-26 267-448-3XXX 3000–3999Assigned ONVOY, LLC - PA 547E PHPHSBZN32 PA
2018-09-26 267-508-3XXX 3000–3999Assigned ONVOY, LLC - PA 547E PHPHSBZN32 PA
2018-09-21 267-704-9XXX 9000–9999Assigned BANDWIDTH.COM CLEC, LLC - PA 002F PHPHSBZN41 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.