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
2023-07-12 445-278-8XXX 8000–8999Assigned ONVOY, LLC - PA 547E PHPHSBZN43 PA
2023-07-12 445-282-4XXX 4000–4999Assigned ONVOY, LLC - PA 547E DOYLESTOWN PA
2023-07-12 445-282-5XXX 5000–5999Assigned ONVOY, LLC - PA 547E DOYLESTOWN PA
2023-07-12 445-282-6XXX 6000–6999Assigned ONVOY, LLC - PA 547E DOYLESTOWN PA
2023-07-12 445-282-7XXX 7000–7999Assigned ONVOY, LLC - PA 547E DOYLESTOWN PA
2023-07-12 445-282-8XXX 8000–8999Assigned ONVOY, LLC - PA 547E DOYLESTOWN PA
2023-06-15 445-251-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 PHLDLPHZN1 PA
2023-06-15 445-251-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 PHLDLPHZN1 PA
2023-06-15 445-272-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 PHLDLPHZN1 PA
2023-06-15 445-272-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 PHLDLPHZN1 PA
2023-06-15 445-289-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 PHLDLPHZN1 PA
2023-06-15 445-622-2XXX 2000–2999Assigned TELNYX LLC 073H PHPHSBZN32 PA
2023-06-02 445-281-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 MORRISVL PA
2023-06-02 445-281-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 MORRISVL PA
2023-05-26 445-215-2XXX 2000–2999Assigned ONVOY, LLC - PA 547E PHLDLPHZN3 PA
2023-05-26 445-215-3XXX 3000–3999Assigned ONVOY, LLC - PA 547E PHLDLPHZN3 PA
2023-05-26 445-276-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - PA 002F PHPHSBZN33 PA
2023-05-26 445-276-2XXX 2000–2999Assigned BANDWIDTH.COM CLEC, LLC - PA 002F PHPHSBZN33 PA
2023-05-25 445-229-7XXX 7000–7999Assigned ONVOY, LLC - PA 547E YARDLEY PA
2023-05-25 445-266-3XXX 3000–3999Assigned ONVOY, LLC - PA 547E QUAKERTOWN PA
2023-05-25 445-266-4XXX 4000–4999Assigned ONVOY, LLC - PA 547E QUAKERTOWN PA
2023-05-25 445-273-4XXX 4000–4999Assigned ONVOY, LLC - PA 547E NEWTOWN PA
2023-05-25 445-276-8XXX 8000–8999Assigned ONVOY, LLC - PA 547E PHPHSBZN33 PA
2023-05-25 445-277-4XXX 4000–4999Assigned ONVOY, LLC - PA 547E PHLDLPHZN3 PA
2023-05-25 445-277-5XXX 5000–5999Assigned ONVOY, LLC - PA 547E PHLDLPHZN3 PA
2023-05-25 445-277-6XXX 6000–6999Assigned ONVOY, LLC - PA 547E PHLDLPHZN3 PA
2023-05-25 445-281-7XXX 7000–7999Assigned ONVOY, LLC - PA 547E MORRISVL PA
2023-05-25 445-500-7XXX 7000–7999Assigned ONVOY, LLC - PA 547E PHPHSBZN40 PA
2023-05-03 445-283-2XXX 2000–2999Assigned COMCAST IP PHONE, LLC 318J DUBLIN PA
2023-04-26 445-282-2XXX 2000–2999Assigned COMCAST IP PHONE, LLC 318J DOYLESTOWN PA
2023-04-26 445-282-3XXX 3000–3999Assigned COMCAST IP PHONE, LLC 318J DOYLESTOWN PA
2023-04-21 445-289-4XXX 4000–4999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 PHLDLPHZN1 PA
2023-04-21 445-289-5XXX 5000–5999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 PHLDLPHZN1 PA
2023-04-21 445-289-6XXX 6000–6999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 PHLDLPHZN1 PA
2023-04-21 445-289-7XXX 7000–7999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 PHLDLPHZN1 PA
2023-04-21 445-289-8XXX 8000–8999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 PHLDLPHZN1 PA
2023-04-20 445-281-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 MORRISVL PA
2023-04-20 445-281-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 MORRISVL PA
2023-04-20 445-281-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 MORRISVL PA
2023-04-20 445-281-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 MORRISVL PA
2023-04-20 445-281-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 MORRISVL PA
2023-04-20 445-281-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 MORRISVL PA
2023-04-10 445-282-9XXX 9000–9999Assigned BOOST SUBSCRIBERCO L.L.C. 490J DOYLESTOWN PA
2023-03-31 445-276-0XXX 0000–0999Assigned TELNYX LLC 073H PHPHSBZN33 PA
2023-03-27 445-254-8XXX 8000–8999Assigned ONVOY, LLC - PA 547E PHLDLPHZN4 PA
2023-03-27 445-254-9XXX 9000–9999Assigned ONVOY, LLC - PA 547E PHLDLPHZN4 PA
2023-03-23 445-278-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - PA 6392 PHPHSBZN43 PA
2023-03-16 445-259-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 MORRISVL PA
2023-03-16 445-259-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 MORRISVL PA
2023-03-16 445-281-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 MORRISVL 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.