NumberResearch Membership · Data 09/20/2026

Recent thousands-block assignments

19 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 445
ONVOY, LLC - PA 8
BANDWIDTH.COM CLEC, LLC - PA 5
NEW CINGULAR WIRELESS PCS, LLC - DC 4
EXIANT COMMUNICATIONS LLC 1
CELLCO PARTNERSHIP DBA VERIZON WIRELESS - 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
2019-08-02 445-400-2XXX 2000–2999Assigned VOIP INNOVATIONS, LLC 597F PHLDLPHZN2 PA
2019-08-01 445-333-4XXX 4000–4999Assigned BANDWIDTH.COM CLEC, LLC - PA 002F QUAKERTOWN PA
2019-08-01 445-900-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 PHPHSBZN40 PA
2019-08-01 445-900-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 PHPHSBZN40 PA
2019-07-26 445-900-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 PHPHSBZN40 PA
2019-07-11 445-500-3XXX 3000–3999Assigned BANDWIDTH.COM CLEC, LLC - PA 002F PHPHSBZN40 PA
2019-06-19 445-200-6XXX 6000–6999Assigned BANDWIDTH.COM CLEC, LLC - PA 002F QUAKERTOWN PA
2019-06-06 445-900-2XXX 2000–2999Assigned BANDWIDTH.COM CLEC, LLC - PA 002F PHPHSBZN40 PA
2019-05-15 445-300-6XXX 6000–6999Assigned ONVOY, LLC - PA 547E PHLDLPHZN1 PA
2019-05-15 445-300-7XXX 7000–7999Assigned ONVOY, LLC - PA 547E PHLDLPHZN1 PA
2019-05-15 445-300-8XXX 8000–8999Assigned ONVOY, LLC - PA 547E PHLDLPHZN1 PA
2019-05-15 445-300-9XXX 9000–9999Assigned ONVOY, LLC - PA 547E PHLDLPHZN1 PA
2019-05-08 445-200-5XXX 5000–5999Assigned BANDWIDTH.COM CLEC, LLC - PA 002F QUAKERTOWN PA
2019-05-01 445-300-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - PA 002F PHLDLPHZN1 PA
2019-05-01 445-300-2XXX 2000–2999Assigned BANDWIDTH.COM CLEC, LLC - PA 002F PHLDLPHZN1 PA
2019-05-01 445-300-4XXX 4000–4999Assigned BANDWIDTH.COM CLEC, LLC - PA 002F PHLDLPHZN1 PA
2019-05-01 445-300-5XXX 5000–5999Assigned BANDWIDTH.COM CLEC, LLC - PA 002F PHLDLPHZN1 PA
2019-04-29 445-900-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - PA 002F PHPHSBZN40 PA
2019-04-26 445-300-3XXX 3000–3999Assigned LEVEL 3 COMMUNICATIONS, LLC - PA 4007 PHLDLPHZN1 PA
2019-04-18 445-200-4XXX 4000–4999Assigned CORE COMMUNICATIONS, INC. - PA 3806 QUAKERTOWN PA
2019-04-04 445-544-8XXX 8000–8999Assigned COMCAST IP PHONE, LLC 318J PHLDLPHZN1 PA
2019-03-22 445-300-0XXX 0000–0999Assigned TERRA NOVA TELECOM INC. 145J PHLDLPHZN1 PA
2019-03-13 445-222-4XXX 4000–4999Assigned CORE COMMUNICATIONS, INC. - PA 3806 PENNSBURG PA
2019-03-13 445-222-5XXX 5000–5999Assigned CORE COMMUNICATIONS, INC. - PA 3806 PENNSBURG PA
2019-03-13 445-222-6XXX 6000–6999Assigned CORE COMMUNICATIONS, INC. - PA 3806 PENNSBURG PA
2019-03-13 445-222-7XXX 7000–7999Assigned CORE COMMUNICATIONS, INC. - PA 3806 PENNSBURG PA
2019-03-13 445-222-9XXX 9000–9999Assigned CORE COMMUNICATIONS, INC. - PA 3806 PENNSBURG PA
2019-03-13 445-666-4XXX 4000–4999Assigned CORE COMMUNICATIONS, INC. - PA 3806 GREEN LANE PA
2019-03-13 445-666-7XXX 7000–7999Assigned CORE COMMUNICATIONS, INC. - PA 3806 GREEN LANE PA
2019-03-07 445-444-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - PA 6392 PHLDLPHZN1 PA
2019-03-07 445-444-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - PA 6392 PHLDLPHZN1 PA
2019-01-30 445-444-9XXX 9000–9999Assigned METROPCS, INC. 5562 PHLDLPHZN1 PA
2019-01-30 445-500-5XXX 5000–5999Assigned METROPCS, INC. 5562 PHPHSBZN40 PA
2019-01-29 445-900-0XXX 0000–0999Assigned FRACTEL, LLC 965H PHPHSBZN40 PA
2019-01-23 445-444-8XXX 8000–8999Assigned ONVOY, LLC - PA 547E PHLDLPHZN1 PA
2019-01-09 445-200-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - PA 6392 QUAKERTOWN PA
2018-12-17 445-500-2XXX 2000–2999Assigned METROPCS, INC. 5562 PHPHSBZN40 PA
2018-12-10 445-666-3XXX 3000–3999Assigned BANDWIDTH.COM CLEC, LLC - PA 002F GREEN LANE PA
2018-11-13 445-600-8XXX 8000–8999Assigned IP HORIZON LLC 515J PHPHSBZN39 PA
2018-11-13 445-600-9XXX 9000–9999Assigned IP HORIZON LLC 515J PHPHSBZN39 PA
2018-10-31 445-222-8XXX 8000–8999Assigned TELNYX LLC 073H PENNSBURG PA
2018-10-31 445-666-8XXX 8000–8999Assigned TELNYX LLC 073H GREEN LANE PA
2018-10-29 445-200-3XXX 3000–3999Assigned BANDWIDTH.COM CLEC, LLC - PA 002F QUAKERTOWN PA
2018-10-22 445-800-4XXX 4000–4999Assigned PEERLESS NETWORK OF PENNSYLVANIA, LLC - PA 967E PHLDLPHZN3 PA
2018-10-17 445-999-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 HARLEYSVL PA
2018-08-30 445-544-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 PHLDLPHZN1 PA
2018-08-30 445-544-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 PHLDLPHZN1 PA
2018-08-30 445-544-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 PHLDLPHZN1 PA
2018-08-30 445-544-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 PHLDLPHZN1 PA
2018-08-30 445-544-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 PHLDLPHZN1 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.