NumberResearch Membership · Data 09/19/2026

Recent thousands-block assignments

5 blocks assigned in the last 30 days · from the daily NANPA thousands-block report, 09/19/2026

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 240
BANDWIDTH.COM CLEC, LLC - MD 3
OPENTACT INC. 1
ONVOY, LLC - MD 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
2022-11-15 240-518-2XXX 2000–2999Assigned ONVOY, LLC - MD 876D WALDORF MD
2022-11-15 240-518-3XXX 3000–3999Assigned ONVOY, LLC - MD 876D WALDORF MD
2022-11-15 240-733-4XXX 4000–4999Assigned OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 6855 ASHTON236 MD
2022-11-15 240-941-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 WSHNGTNZN2 MD
2022-11-15 240-941-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 WSHNGTNZN2 MD
2022-11-15 240-947-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 MYERSVILLE MD
2022-11-15 240-947-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 MYERSVILLE MD
2022-11-15 240-947-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 MYERSVILLE MD
2022-11-15 240-960-3XXX 3000–3999Assigned OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 6855 WSHNGTNZN4 MD
2022-11-09 240-967-0XXX 0000–0999Assigned BOOST SUBSCRIBERCO L.L.C. 490J CUMBERLAND MD
2022-11-08 240-730-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - MD 7325 HAGERSTOWN MD
2022-11-08 240-794-0XXX 0000–0999Assigned COMMIO, LLC 939H LXTNPKGRML MD
2022-11-08 240-861-1XXX 1000–1999Assigned OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 6855 ASHTON236 MD
2022-11-08 240-919-0XXX 0000–0999Assigned OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 6855 ASHTON236 MD
2022-11-08 240-960-0XXX 0000–0999Assigned OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 6855 WSHNGTNZN4 MD
2022-11-08 240-960-1XXX 1000–1999Assigned OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 6855 WSHNGTNZN4 MD
2022-11-08 240-960-2XXX 2000–2999Assigned OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 6855 WSHNGTNZN4 MD
2022-11-08 240-968-0XXX 0000–0999Assigned COMMIO, LLC 939H LAUREL236 MD
2022-11-07 240-930-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 6395 LAUREL238 MD
2022-11-07 240-934-1XXX 1000–1999Assigned COMMIO, LLC 939H MIDDLETOWN MD
2022-11-07 240-969-0XXX 0000–0999Assigned COMMIO, LLC 939H WALKERSVL MD
2022-11-07 240-969-1XXX 1000–1999Assigned COMMIO, LLC 939H WALKERSVL MD
2022-11-04 240-943-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - MD 071F FROSTBURG MD
2022-11-02 240-963-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 WSHNGTNZN3 MD
2022-11-02 240-963-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 WSHNGTNZN3 MD
2022-11-01 240-961-4XXX 4000–4999Assigned ONVOY, LLC - MD 876D POOLESVL MD
2022-11-01 240-961-5XXX 5000–5999Assigned ONVOY, LLC - MD 876D POOLESVL MD
2022-10-31 240-819-9XXX 9000–9999Assigned ONVOY, LLC - MD 876D WILLIAMSPT MD
2022-10-28 240-359-6XXX 6000–6999Assigned ONVOY, LLC - MD 876D INDIANHEAD MD
2022-10-28 240-359-7XXX 7000–7999Assigned ONVOY, LLC - MD 876D INDIANHEAD MD
2022-10-28 240-940-6XXX 6000–6999Assigned METROPCS, INC. 5562 WSHNGTNZN4 MD
2022-10-21 240-799-5XXX 5000–5999Assigned METROPCS, INC. 5562 BRANDYWINE MD
2022-10-21 240-968-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 LAUREL236 MD
2022-10-21 240-968-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 LAUREL236 MD
2022-10-21 240-968-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 LAUREL236 MD
2022-10-21 240-968-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 LAUREL236 MD
2022-10-21 240-968-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 LAUREL236 MD
2022-10-19 240-243-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 GAITHERSBG MD
2022-10-19 240-306-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 GAITHERSBG MD
2022-10-19 240-410-4XXX 4000–4999Assigned OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 6855 CUMBERLAND MD
2022-10-19 240-807-6XXX 6000–6999Assigned METROPCS, INC. 5562 CUMBERLAND MD
2022-10-19 240-941-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 6395 WSHNGTNZN2 MD
2022-10-19 240-967-9XXX 9000–9999Assigned METROPCS, INC. 5562 CUMBERLAND MD
2022-10-18 240-924-9XXX 9000–9999Assigned COMMIO, LLC 939H MOUNT AIRY MD
2022-10-18 240-963-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - MD 071F WSHNGTNZN3 MD
2022-10-18 240-963-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - MD 071F WSHNGTNZN3 MD
2022-10-18 240-963-2XXX 2000–2999Assigned BANDWIDTH.COM CLEC, LLC - MD 071F WSHNGTNZN3 MD
2022-10-18 240-963-3XXX 3000–3999Assigned BANDWIDTH.COM CLEC, LLC - MD 071F WSHNGTNZN3 MD
2022-10-14 240-941-8XXX 8000–8999Assigned BANDWIDTH.COM CLEC, LLC - MD 071F WSHNGTNZN2 MD
2022-10-13 240-574-1XXX 1000–1999Assigned LEVEL 3 COMMUNICATIONS, LLC - MD 6119 FRIENDSVL MD

Source: NANPA Thousands Block Assignment Report (All Regions, Public), file date 09/19/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.