NumberResearch Membership · Data 09/20/2026

Recent thousands-block assignments

7 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 508
CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 4
PEERLESS NETWORK OF MASSACHUSETTS, LLC - MA 1
OMNIPOINT MIAMI E LICENSE, 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
2012-10-18 508-401-3XXX 3000–3999Assigned TC SYSTEMS, INC. 7135 WAYLAND MA
2012-10-18 508-469-7XXX 7000–7999Assigned TC SYSTEMS, INC. 7135 CHATHAM MA
2012-10-18 508-506-6XXX 6000–6999Assigned TC SYSTEMS, INC. 7135 OXFORD MA
2012-10-18 508-576-4XXX 4000–4999Assigned TC SYSTEMS, INC. 7135 NO ATTLEBO MA
2012-10-18 508-682-6XXX 6000–6999Assigned TC SYSTEMS, INC. 7135 EASTON MA
2012-10-18 508-694-2XXX 2000–2999Assigned PAETEC ITEL, LLC 829J DENNIS MA
2012-10-02 508-745-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 6387 NATICK MA
2012-10-02 508-927-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 6387 PLYMOUTH MA
2012-09-26 508-338-2XXX 2000–2999Assigned COMCAST IP PHONE, LLC 318J VINEYRDHVN MA
2012-09-21 508-392-4XXX 4000–4999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 CATAUMET MA
2012-08-30 508-375-3XXX 3000–3999Assigned BANDWIDTH.COM CLEC, LLC - MA 990E BARNSTABLE MA
2012-08-28 508-665-3XXX 3000–3999Assigned OMNIPOINT MIAMI E LICENSE, LLC 6889 FRAMINGHAM MA
2012-08-23 508-209-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 PLYMOUTH MA
2012-08-08 508-918-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 6387 FRANKLIN MA
2012-08-08 508-918-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 6387 FRANKLIN MA
2012-08-07 508-297-6XXX 6000–6999Assigned BANDWIDTH.COM CLEC, LLC - MA 990E EASTON MA
2012-08-03 508-203-3XXX 3000–3999Assigned LEVEL 3 COMMUNICATIONS, LLC - MA 4018 FOXBORO MA
2012-08-03 508-506-2XXX 2000–2999Assigned PAETEC ITEL, LLC 829J OXFORD MA
2012-07-18 508-598-8XXX 8000–8999Assigned OMNIPOINT MIAMI E LICENSE, LLC 6889 FRAMINGHAM MA
2012-07-18 508-656-7XXX 7000–7999Assigned OMNIPOINT MIAMI E LICENSE, LLC 6889 FRAMINGHAM MA
2012-07-18 508-739-3XXX 3000–3999Assigned OMNIPOINT MIAMI E LICENSE, LLC 6889 FRAMINGHAM MA
2012-06-26 508-782-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 6387 FRAMINGHAM MA
2012-06-25 508-731-7XXX 7000–7999Assigned CHARTER IP ENABLED SERVICES, LLC 792K OXFORD MA
2012-06-14 508-665-0XXX 0000–0999Assigned OMNIPOINT MIAMI E LICENSE, LLC 6889 FRAMINGHAM MA
2012-06-11 508-825-5XXX 5000–5999Assigned COMCAST IP PHONE, LLC 318J NANTUCKET MA
2012-06-05 508-782-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 6387 FRAMINGHAM MA
2012-06-05 508-918-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 6387 FRANKLIN MA
2012-06-05 508-948-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 6387 WESTBORO MA
2012-06-01 508-619-3XXX 3000–3999Assigned COMCAST IP PHONE, LLC 318J DENNIS MA
2012-05-25 508-372-3XXX 3000–3999Assigned PAETEC ITEL, LLC 829J WHITINSVL MA
2012-05-25 508-794-5XXX 5000–5999Assigned BANDWIDTH.COM CLEC, LLC - MA 990E MILLIS MA
2012-05-21 508-745-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 6387 NATICK MA
2012-05-08 508-386-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 6387 TAUNTON MA
2012-05-08 508-745-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 6387 NATICK MA
2012-05-08 508-782-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 6387 FRAMINGHAM MA
2012-05-01 508-859-8XXX 8000–8999Assigned CHARTER IP ENABLED SERVICES, LLC 792K LEICESTER MA
2012-04-24 508-745-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 6387 NATICK MA
2012-04-23 508-348-5XXX 5000–5999Assigned COMCAST IP PHONE, LLC 318J CHATHAM MA
2012-04-17 508-465-1XXX 1000–1999Assigned COMCAST IP PHONE, LLC 318J CARVER MA
2012-04-16 508-594-8XXX 8000–8999Assigned PEERLESS NETWORK OF MASSACHUSETTS, LLC - MA 268F MANSFIELD MA
2012-04-16 508-720-8XXX 8000–8999Assigned PEERLESS NETWORK OF MASSACHUSETTS, LLC - MA 268F NATICK MA
2012-04-16 508-919-8XXX 8000–8999Assigned PEERLESS NETWORK OF MASSACHUSETTS, LLC - MA 268F NORTHBORO MA
2012-04-13 508-297-9XXX 9000–9999Assigned PEERLESS NETWORK OF MASSACHUSETTS, LLC - MA 268F EASTON MA
2012-04-13 508-356-8XXX 8000–8999Assigned PEERLESS NETWORK OF MASSACHUSETTS, LLC - MA 268F CATAUMET MA
2012-04-13 508-659-8XXX 8000–8999Assigned PEERLESS NETWORK OF MASSACHUSETTS, LLC - MA 268F BRIDGEWTR MA
2012-04-13 508-980-0XXX 0000–0999Assigned PEERLESS NETWORK OF MASSACHUSETTS, LLC - MA 268F CHARLTON MA
2012-04-05 508-356-3XXX 3000–3999Assigned COMCAST IP PHONE, LLC 318J CATAUMET MA
2012-02-22 508-276-6XXX 6000–6999Assigned ONVOY, LLC - MA 892D WAYLAND MA
2012-02-22 508-557-7XXX 7000–7999Assigned ONVOY, LLC - MA 892D SEEKONK MA
2012-02-22 508-671-7XXX 7000–7999Assigned ONVOY, LLC - MA 892D WEBSTER MA

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.