NumberResearch Membership · Data 09/19/2026

Recent thousands-block assignments

14 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 413
CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 6
BANDWIDTH.COM CLEC, LLC - MA 5
NEW CINGULAR WIRELESS PCS, LLC - DC 1
MCIMETRO ACCESS TRANSMISSION SERVICES LLC 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
2023-04-20 413-593-8XXX 8000–8999Assigned ONVOY, LLC - MA 892D CHICOPEE MA
2023-04-14 413-966-8XXX 8000–8999Assigned TC SYSTEMS, INC. 7135 NORTHAMPTN MA
2023-03-29 413-343-2XXX 2000–2999Assigned ONVOY, LLC - MA 892D CHESTER MA
2023-03-27 413-229-4XXX 4000–4999Assigned ONVOY, LLC - MA 892D SHEFFIELD MA
2023-03-27 413-629-6XXX 6000–6999Assigned TERRA NOVA TELECOM INC. 145J PITTSFIELD MA
2023-03-22 413-479-6XXX 6000–6999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 GREENFIELD MA
2023-03-22 413-666-9XXX 9000–9999Assigned TC SYSTEMS, INC. 7135 GRANVILLE MA
2023-03-22 413-673-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 6387 GREATBNGTN MA
2023-03-17 413-435-4XXX 4000–4999Assigned ONVOY, LLC - MA 892D CHICOPEE MA
2023-03-10 413-288-8XXX 8000–8999Assigned HD CARRIER LLC 321J SPRINGFLD MA
2023-03-10 413-288-9XXX 9000–9999Assigned HD CARRIER LLC 321J SPRINGFLD MA
2023-03-07 413-390-2XXX 2000–2999Assigned LEVEL 3 COMMUNICATIONS, LLC - MA 4018 SPRINGFLD MA
2023-02-27 413-466-3XXX 3000–3999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 HOLYOKE MA
2023-02-07 413-440-6XXX 6000–6999Assigned BOOST SUBSCRIBERCO L.L.C. 490J HUNTINGTON MA
2023-01-31 413-867-3XXX 3000–3999Assigned PEERLESS NETWORK OF MASSACHUSETTS, LLC - MA 268F SPRINGFLD MA
2023-01-27 413-352-1XXX 1000–1999Assigned TC SYSTEMS, INC. 7135 SPRINGFLD MA
2023-01-27 413-352-2XXX 2000–2999Assigned TC SYSTEMS, INC. 7135 SPRINGFLD MA
2023-01-27 413-352-3XXX 3000–3999Assigned TC SYSTEMS, INC. 7135 SPRINGFLD MA
2023-01-27 413-352-4XXX 4000–4999Assigned TC SYSTEMS, INC. 7135 SPRINGFLD MA
2023-01-24 413-942-0XXX 0000–0999Assigned TC SYSTEMS, INC. 7135 COLRAIN MA
2023-01-19 413-430-0XXX 0000–0999Assigned NUSO, LLC 732J HOLYOKE MA
2023-01-13 413-416-2XXX 2000–2999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 AMHERST MA
2023-01-11 413-356-9XXX 9000–9999Assigned ONVOY, LLC - MA 892D CHICOPEE MA
2022-12-22 413-493-5XXX 5000–5999Assigned U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 671J HOLYOKE MA
2022-12-22 413-603-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 6387 NORTHADAMS MA
2022-12-13 413-418-6XXX 6000–6999Assigned U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 671J PITTSFIELD MA
2022-12-13 413-418-7XXX 7000–7999Assigned U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 671J PITTSFIELD MA
2022-12-12 413-462-6XXX 6000–6999Assigned TC SYSTEMS, INC. 7135 SANDISFLD MA
2022-12-12 413-476-3XXX 3000–3999Assigned TC SYSTEMS, INC. 7135 SHEFFIELD MA
2022-12-01 413-230-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 6387 AMHERST MA
2022-11-30 413-371-4XXX 4000–4999Assigned ONVOY, LLC - MA 892D BELCHERTN MA
2022-11-21 413-673-0XXX 0000–0999Assigned METROPCS, INC. 5562 GREATBNGTN MA
2022-11-17 413-352-7XXX 7000–7999Assigned U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 671J SPRINGFLD MA
2022-11-17 413-352-8XXX 8000–8999Assigned U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 671J SPRINGFLD MA
2022-11-16 413-268-8XXX 8000–8999Assigned TERRA NOVA TELECOM INC. 145J WILLIAMSBG MA
2022-11-16 413-269-0XXX 0000–0999Assigned TERRA NOVA TELECOM INC. 145J OTIS MA
2022-11-14 413-666-8XXX 8000–8999Assigned BOOST SUBSCRIBERCO L.L.C. 490J GRANVILLE MA
2022-11-07 413-390-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 6387 SPRINGFLD MA
2022-11-07 413-472-4XXX 4000–4999Assigned OMNIPOINT MIAMI E LICENSE, LLC 6889 HOLYOKE MA
2022-11-07 413-692-9XXX 9000–9999Assigned OMNIPOINT MIAMI E LICENSE, LLC 6889 PITTSFIELD MA
2022-10-25 413-319-6XXX 6000–6999Assigned ONVOY, LLC - MA 892D HOLYOKE MA
2022-10-18 413-279-0XXX 0000–0999Assigned COMMIO, LLC 939H WILBRAHAM MA
2022-10-18 413-371-9XXX 9000–9999Assigned COMMIO, LLC 939H BELCHERTN MA
2022-10-18 413-933-1XXX 1000–1999Assigned TWC IP ENABLED SERVICES, LLC 793K MONROE BDG MA
2022-10-07 413-440-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 6387 HUNTINGTON MA
2022-10-05 413-867-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 6387 SPRINGFLD MA
2022-10-05 413-867-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 6387 SPRINGFLD MA
2022-10-04 413-339-0XXX 0000–0999Assigned TERRA NOVA TELECOM INC. 145J CHARLEMONT MA
2022-10-04 413-432-6XXX 6000–6999Assigned TC SYSTEMS, INC. 7135 SPRINGFLD MA
2022-10-04 413-589-8XXX 8000–8999Assigned TERRA NOVA TELECOM INC. 145J LUDLOW MA

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.