NumberResearch Membership · Data 09/19/2026

Recent thousands-block assignments

1 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 617
BANDWIDTH.COM CLEC, LLC - MA 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
Clear Download CSV ↓
Recent thousands-block assignments
AssignedThousands-blockLast 4 digitsStatusAssigneeOCNRate centerState
2016-01-26 617-944-1XXX 1000–1999Assigned ONVOY, LLC - MA 892D EVERETT MA
2016-01-26 617-944-2XXX 2000–2999Assigned ONVOY, LLC - MA 892D EVERETT MA
2016-01-25 617-207-2XXX 2000–2999Assigned ONVOY, LLC - MA 892D WINTHROP MA
2016-01-19 617-668-5XXX 5000–5999Assigned TC SYSTEMS, INC. 7135 WATERTOWN MA
2016-01-19 617-890-6XXX 6000–6999Assigned ONVOY, LLC - MA 892D QUINCY MA
2016-01-19 617-890-7XXX 7000–7999Assigned ONVOY, LLC - MA 892D QUINCY MA
2016-01-15 617-398-4XXX 4000–4999Assigned ONVOY, LLC - MA 892D CHARLESTN MA
2016-01-15 617-681-9XXX 9000–9999Assigned ONVOY, LLC - MA 892D CHARLESTN MA
2016-01-15 617-941-3XXX 3000–3999Assigned ONVOY, LLC - MA 892D SOMERVILLE MA
2016-01-15 617-941-7XXX 7000–7999Assigned ONVOY, LLC - MA 892D SOMERVILLE MA
2016-01-15 617-944-5XXX 5000–5999Assigned ONVOY, LLC - MA 892D EVERETT MA
2016-01-15 617-944-6XXX 6000–6999Assigned ONVOY, LLC - MA 892D EVERETT MA
2016-01-14 617-415-4XXX 4000–4999Assigned ONVOY, LLC - MA 892D BRIGHTON MA
2016-01-14 617-415-7XXX 7000–7999Assigned ONVOY, LLC - MA 892D BRIGHTON MA
2016-01-14 617-925-5XXX 5000–5999Assigned ONVOY, LLC - MA 892D BRIGHTON MA
2016-01-07 617-202-2XXX 2000–2999Assigned ONVOY, LLC - MA 892D BRIGHTON MA
2016-01-06 617-829-9XXX 9000–9999Assigned ONVOY, LLC - MA 892D QUINCY MA
2015-12-28 617-321-0XXX 0000–0999Assigned PAETEC ITEL, LLC 829J WATERTOWN MA
2015-12-18 617-767-0XXX 0000–0999Assigned ONVOY, LLC - MA 892D SOMERVILLE MA
2015-12-17 617-657-2XXX 2000–2999Assigned ONVOY, LLC - MA 892D QUINCY MA
2015-12-02 617-944-4XXX 4000–4999Assigned BARR TELL USA, INC. - MA 732H EVERETT MA
2015-11-06 617-315-1XXX 1000–1999Assigned PEERLESS NETWORK OF MASSACHUSETTS, LLC - MA 268F SO BOSTON MA
2015-10-14 617-315-0XXX 0000–0999Assigned PEERLESS NETWORK OF MASSACHUSETTS, LLC - MA 268F SO BOSTON MA
2015-10-01 617-454-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 6387 NEWTON MA
2015-10-01 617-906-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 6387 BROOKLINE MA
2015-09-28 617-952-0XXX 0000–0999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 CHARLESTN MA
2015-09-16 617-505-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 6387 BROOKLINE MA
2015-09-08 617-454-5XXX 5000–5999Assigned PAETEC ITEL, LLC 829J NEWTON MA
2015-09-03 617-487-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 6387 BROOKLINE MA
2015-08-24 617-315-4XXX 4000–4999Assigned BANDWIDTH.COM CLEC, LLC - MA 990E SO BOSTON MA
2015-08-24 617-402-5XXX 5000–5999Assigned BANDWIDTH.COM CLEC, LLC - MA 990E WATERTOWN MA
2015-08-24 617-657-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - MA 990E QUINCY MA
2015-08-21 617-691-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 6387 QUINCY MA
2015-08-14 617-668-4XXX 4000–4999Assigned TC SYSTEMS, INC. 7135 WATERTOWN MA
2015-08-06 617-483-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 6387 QUINCY MA
2015-06-26 617-249-8XXX 8000–8999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 QUINCY MA
2015-06-19 617-991-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 6387 BROOKLINE MA
2015-06-01 617-483-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 6387 QUINCY MA
2015-06-01 617-992-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 6387 BROOKLINE MA
2015-06-01 617-992-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 6387 BROOKLINE MA
2015-05-20 617-356-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 6387 BOSTON MA
2015-05-20 617-657-7XXX 7000–7999Assigned HD CARRIER LLC 321J QUINCY MA
2015-04-30 617-207-0XXX 0000–0999Assigned PEERLESS NETWORK OF MASSACHUSETTS, LLC - MA 268F WINTHROP MA
2015-04-16 617-420-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - MA 990E EVERETT MA
2015-04-16 617-420-5XXX 5000–5999Assigned BANDWIDTH.COM CLEC, LLC - MA 990E EVERETT MA
2015-04-16 617-420-8XXX 8000–8999Assigned BANDWIDTH.COM CLEC, LLC - MA 990E EVERETT MA
2015-03-31 617-237-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 6387 QUINCY MA
2015-03-13 617-580-6XXX 6000–6999Assigned OMNIPOINT MIAMI E LICENSE, LLC 6889 CHARLESTN MA
2015-03-13 617-712-6XXX 6000–6999Assigned OMNIPOINT MIAMI E LICENSE, LLC 6889 CHARLESTN MA
2015-01-26 617-302-9XXX 9000–9999Assigned BANDWIDTH.COM CLEC, LLC - MA 990E QUINCY 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.