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
2003-03-11 508-502-1XXX 1000–1999Assigned VERIZON NEW ENGLAND INC. 9102 WORCESTER MA
2003-03-11 508-502-2XXX 2000–2999Assigned VERIZON NEW ENGLAND INC. 9102 WORCESTER MA
2003-03-11 508-502-3XXX 3000–3999Assigned VERIZON NEW ENGLAND INC. 9102 WORCESTER MA
2003-03-11 508-502-4XXX 4000–4999Assigned VERIZON NEW ENGLAND INC. 9102 WORCESTER MA
2003-03-11 508-502-5XXX 5000–5999Assigned VERIZON NEW ENGLAND INC. 9102 WORCESTER MA
2003-03-11 508-502-6XXX 6000–6999Assigned VERIZON NEW ENGLAND INC. 9102 WORCESTER MA
2003-03-11 508-502-9XXX 9000–9999Assigned VERIZON NEW ENGLAND INC. 9102 WORCESTER MA
2003-03-07 508-404-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 6387 WALPOLE MA
2003-03-07 508-436-1XXX 1000–1999Assigned TC SYSTEMS, INC. 7135 BROCKTON MA
2003-03-07 508-436-5XXX 5000–5999Assigned TC SYSTEMS, INC. 7135 BROCKTON MA
2003-03-07 508-436-8XXX 8000–8999Assigned TC SYSTEMS, INC. 7135 BROCKTON MA
2003-03-07 508-887-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 6387 GRAFTON MA
2003-03-07 508-887-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 6387 GRAFTON MA
2003-03-06 508-717-0XXX 0000–0999Assigned PAETEC ITEL, LLC 829J NEWBEDFORD MA
2003-03-05 508-281-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - MA 4018 MARLBORO MA
2003-02-04 508-558-9XXX 9000–9999Assigned OMNIPOINT MIAMI E LICENSE, LLC 6889 FALL RIVER MA
2003-02-03 508-525-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 6387 NEWBEDFORD MA
2003-02-03 508-525-9XXX 9000–9999Assigned METROPCS, INC. 5562 NEWBEDFORD MA
2003-02-03 508-934-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 6387 DOVER MA
2003-01-21 508-369-8XXX 8000–8999Assigned OMNIPOINT MIAMI E LICENSE, LLC 6889 MANSFIELD MA
2003-01-14 508-415-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 FALL RIVER MA
2003-01-14 508-415-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 FALL RIVER MA
2003-01-14 508-415-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 FALL RIVER MA
2003-01-14 508-415-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 FALL RIVER MA
2003-01-09 508-404-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 6387 WALPOLE MA
2003-01-09 508-887-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 6387 GRAFTON MA
2003-01-09 508-934-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 6387 DOVER MA
2002-12-20 508-425-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - MA 4018 WORCESTER MA
2002-12-20 508-436-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - MA 4018 BROCKTON MA
2002-12-20 508-525-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - MA 4018 NEWBEDFORD MA
2002-12-20 508-802-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - MA 4018 TAUNTON MA
2002-11-07 508-207-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 6387 NEWBEDFORD MA
2002-11-07 508-680-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 6387 NANTUCKET MA
2002-10-31 508-308-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 FRAMINGHAM MA
2002-10-31 508-308-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 FRAMINGHAM MA
2002-10-31 508-308-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 FRAMINGHAM MA
2002-10-31 508-308-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 FRAMINGHAM MA
2002-10-31 508-308-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 FRAMINGHAM MA
2002-10-31 508-415-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 FALL RIVER MA
2002-10-31 508-415-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 FALL RIVER MA
2002-10-31 508-415-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 FALL RIVER MA
2002-10-31 508-415-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 FALL RIVER MA
2002-10-31 508-415-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 FALL RIVER MA
2002-10-31 508-415-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 FALL RIVER MA
2002-10-31 508-446-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 FRANKLIN MA
2002-10-31 508-446-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 FRANKLIN MA
2002-10-31 508-446-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 FRANKLIN MA
2002-10-31 508-446-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 FRANKLIN MA
2002-10-31 508-446-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 FRANKLIN MA
2002-10-23 508-721-6XXX 6000–6999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 AUBURN 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.