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
2023-07-13 240-272-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 WSHNGTNZN2 MD
2023-07-13 240-340-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 WSHNGTNZN2 MD
2023-07-13 240-340-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 WSHNGTNZN2 MD
2023-07-13 240-340-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 WSHNGTNZN2 MD
2023-07-13 240-340-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 WSHNGTNZN2 MD
2023-07-13 240-445-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 WSHNGTNZN2 MD
2023-07-12 240-924-2XXX 2000–2999Assigned ONVOY, LLC - MD 876D MOUNT AIRY MD
2023-07-12 240-924-3XXX 3000–3999Assigned ONVOY, LLC - MD 876D MOUNT AIRY MD
2023-07-12 240-924-4XXX 4000–4999Assigned ONVOY, LLC - MD 876D MOUNT AIRY MD
2023-07-12 240-924-5XXX 5000–5999Assigned ONVOY, LLC - MD 876D MOUNT AIRY MD
2023-07-12 240-924-6XXX 6000–6999Assigned ONVOY, LLC - MD 876D MOUNT AIRY MD
2023-07-12 240-931-5XXX 5000–5999Assigned ONVOY, LLC - MD 876D FREDERICK MD
2023-07-12 240-931-6XXX 6000–6999Assigned ONVOY, LLC - MD 876D FREDERICK MD
2023-07-12 240-955-3XXX 3000–3999Assigned ONVOY, LLC - MD 876D LA PLATA MD
2023-07-12 240-955-4XXX 4000–4999Assigned ONVOY, LLC - MD 876D LA PLATA MD
2023-07-12 240-955-5XXX 5000–5999Assigned ONVOY, LLC - MD 876D LA PLATA MD
2023-07-12 240-955-6XXX 6000–6999Assigned ONVOY, LLC - MD 876D LA PLATA MD
2023-07-12 240-955-7XXX 7000–7999Assigned ONVOY, LLC - MD 876D LA PLATA MD
2023-07-12 240-966-8XXX 8000–8999Assigned ONVOY, LLC - MD 876D WSNGTNZN16 MD
2023-07-12 240-980-5XXX 5000–5999Assigned ONVOY, LLC - MD 876D LEONARDTN MD
2023-07-12 240-980-6XXX 6000–6999Assigned ONVOY, LLC - MD 876D LEONARDTN MD
2023-07-12 240-980-7XXX 7000–7999Assigned ONVOY, LLC - MD 876D LEONARDTN MD
2023-07-07 240-262-2XXX 2000–2999Assigned TERRA NOVA TELECOM INC. 145J LXTNPKGRML MD
2023-07-07 240-269-0XXX 0000–0999Assigned TERRA NOVA TELECOM INC. 145J WSNGTNZN16 MD
2023-07-07 240-290-7XXX 7000–7999Assigned TERRA NOVA TELECOM INC. 145J WSNGTNZN11 MD
2023-07-07 240-337-1XXX 1000–1999Assigned TERRA NOVA TELECOM INC. 145J WSHNGTNZN5 MD
2023-07-07 240-408-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 WSNGTNZN10 MD
2023-07-07 240-865-6XXX 6000–6999Assigned TERRA NOVA TELECOM INC. 145J WSNG238Z14 MD
2023-07-07 240-892-0XXX 0000–0999Assigned TERRA NOVA TELECOM INC. 145J WSNG236Z15 MD
2023-07-07 240-992-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 WSNGTNZN10 MD
2023-07-07 240-992-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 WSNGTNZN10 MD
2023-07-07 240-992-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 WSNGTNZN10 MD
2023-07-07 240-992-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 WSNGTNZN10 MD
2023-07-07 240-992-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 WSNGTNZN10 MD
2023-06-29 240-243-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 GAITHERSBG MD
2023-06-29 240-438-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 WSHNGTNZN3 MD
2023-06-28 240-735-7XXX 7000–7999Assigned BOOST SUBSCRIBERCO L.L.C. 490J BRUNSWICK MD
2023-06-27 240-518-0XXX 0000–0999Assigned PEERLESS NETWORK OF MARYLAND, LLC 568G WALDORF MD
2023-06-20 240-814-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 6395 LAUREL236 MD
2023-06-20 240-962-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 6395 LAUREL236 MD
2023-06-20 240-962-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 6395 LAUREL236 MD
2023-06-14 240-902-7XXX 7000–7999Assigned ONVOY, LLC - MD 876D DAMASCS240 MD
2023-06-14 240-905-8XXX 8000–8999Assigned ONVOY, LLC - MD 876D BRANDYWINE MD
2023-06-07 240-866-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 HAGERSTOWN MD
2023-06-07 240-989-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 MYERSVILLE MD
2023-06-07 240-989-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 MYERSVILLE MD
2023-06-07 240-989-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 MYERSVILLE MD
2023-06-07 240-989-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 MYERSVILLE MD
2023-06-07 240-989-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 MYERSVILLE MD
2023-06-05 240-966-7XXX 7000–7999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 WSNGTNZN16 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.