NumberResearch Membership · Data 09/20/2026

Recent thousands-block assignments

2 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 781
NEW CINGULAR WIRELESS PCS, LLC - DC 1
CELLCO PARTNERSHIP DBA VERIZON WIRELESS - 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
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Recent thousands-block assignments
AssignedThousands-blockLast 4 digitsStatusAssigneeOCNRate centerState
2011-10-31 781-731-5XXX 5000–5999Assigned OMNIPOINT MIAMI E LICENSE, LLC 6889 LYNN MA
2011-10-21 781-652-4XXX 4000–4999Assigned U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 671J LEXINGTON MA
2011-10-10 781-924-8XXX 8000–8999Assigned PAETEC ITEL, LLC 829J HANOVER MA
2011-10-04 781-457-8XXX 8000–8999Assigned OMNIPOINT MIAMI E LICENSE, LLC 6889 LEXINGTON MA
2011-10-04 781-795-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 6387 WALTHAM MA
2011-10-04 781-907-0XXX 0000–0999Assigned METROPCS, INC. 5562 WALTHAM MA
2011-09-22 781-606-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 MELROSE MA
2011-09-16 781-352-8XXX 8000–8999Assigned LEVEL 3 COMMUNICATIONS, LLC - MA 4018 NORWOOD MA
2011-09-14 781-816-2XXX 2000–2999Assigned BANDWIDTH.COM CLEC, LLC - MA 990E SAUGUS MA
2011-09-08 781-780-8XXX 8000–8999Assigned LEVEL 3 COMMUNICATIONS, LLC - MA 4018 LYNN MA
2011-09-07 781-426-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 6387 REVERE MA
2011-08-26 781-780-9XXX 9000–9999Assigned COMCAST IP PHONE, LLC 318J LYNN MA
2011-08-11 781-422-3XXX 3000–3999Assigned COMCAST IP PHONE, LLC 318J KINGSTON MA
2011-07-27 781-810-3XXX 3000–3999Assigned PAETEC ITEL, LLC 829J WALTHAM MA
2011-07-27 781-810-5XXX 5000–5999Assigned PAETEC ITEL, LLC 829J WALTHAM MA
2011-07-27 781-810-7XXX 7000–7999Assigned PAETEC ITEL, LLC 829J WALTHAM MA
2011-07-25 781-803-1XXX 1000–1999Assigned PAETEC ITEL, LLC 829J WEYMOUTH MA
2011-07-20 781-399-5XXX 5000–5999Assigned BANDWIDTH.COM CLEC, LLC - MA 990E MALDEN MA
2011-07-06 781-670-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 6387 READING MA
2011-07-06 781-879-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 6387 LEXINGTON MA
2011-07-06 781-960-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 6387 MEDFORD MA
2011-07-01 781-375-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 DEDHAM MA
2011-07-01 781-375-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 DEDHAM MA
2011-07-01 781-375-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 DEDHAM MA
2011-06-28 781-333-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 MALDEN MA
2011-06-28 781-957-1XXX 1000–1999Assigned PEERLESS NETWORK OF MASSACHUSETTS, LLC - MA 268F MEDFORD MA
2011-06-24 781-265-4XXX 4000–4999Assigned PAETEC ITEL, LLC 829J BURLINGTON MA
2011-06-17 781-287-9XXX 9000–9999Assigned PEERLESS NETWORK OF MASSACHUSETTS, LLC - MA 268F WOBURN MA
2011-06-17 781-780-0XXX 0000–0999Assigned PEERLESS NETWORK OF MASSACHUSETTS, LLC - MA 268F LYNN MA
2011-06-17 781-810-0XXX 0000–0999Assigned PEERLESS NETWORK OF MASSACHUSETTS, LLC - MA 268F WALTHAM MA
2011-06-17 781-999-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 6387 LEXINGTON MA
2011-06-13 781-803-6XXX 6000–6999Assigned COMCAST IP PHONE, LLC 318J WEYMOUTH MA
2011-06-08 781-903-1XXX 1000–1999Assigned PAETEC ITEL, LLC 829J HINGHAM MA
2011-06-07 781-392-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 WALTHAM MA
2011-06-07 781-392-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 WALTHAM MA
2011-06-07 781-392-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 WALTHAM MA
2011-06-07 781-936-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 KINGSTON MA
2011-05-31 781-281-9XXX 9000–9999Assigned BANDWIDTH.COM CLEC, LLC - MA 990E WOBURN MA
2011-05-31 781-435-7XXX 7000–7999Assigned BANDWIDTH.COM CLEC, LLC - MA 990E STONEHAM MA
2011-05-31 781-437-4XXX 4000–4999Assigned BANDWIDTH.COM CLEC, LLC - MA 990E RANDOLPH MA
2011-05-31 781-664-9XXX 9000–9999Assigned BANDWIDTH.COM CLEC, LLC - MA 990E BRAINTREE MA
2011-05-31 781-731-9XXX 9000–9999Assigned BANDWIDTH.COM CLEC, LLC - MA 990E LYNN MA
2011-05-26 781-584-0XXX 0000–0999Assigned OMNIPOINT MIAMI E LICENSE, LLC 6889 LYNN MA
2011-05-24 781-795-7XXX 7000–7999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 WALTHAM MA
2011-05-24 781-795-8XXX 8000–8999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 WALTHAM MA
2011-05-23 781-364-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 6387 CANTON MA
2011-05-23 781-702-2XXX 2000–2999Assigned PAETEC ITEL, LLC 829J NORWOOD MA
2011-05-23 781-707-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 6387 NEEDHAM MA
2011-05-23 781-715-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 6387 LYNN MA
2011-05-23 781-733-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 6387 NORWELL 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.