NumberResearch Membership · Data 09/19/2026

Recent thousands-block assignments

2 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 425
NEW CINGULAR WIRELESS PCS, LLC 2
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
2006-12-11 425-502-2XXX 2000–2999Assigned T-MOBILE USA, INC. 6529 BELLEVUE WA
2006-12-01 425-286-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 BOTHELL WA
2006-12-01 425-791-4XXX 4000–4999Assigned T-MOBILE USA, INC. 6529 EVERETT WA
2006-12-01 425-791-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 EVERETT WA
2006-12-01 425-791-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 EVERETT WA
2006-12-01 425-791-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 EVERETT WA
2006-11-29 425-502-7XXX 7000–7999Assigned COMCAST IP PHONE, LLC 318J BELLEVUE WA
2006-11-29 425-502-8XXX 8000–8999Assigned COMCAST IP PHONE, LLC 318J BELLEVUE WA
2006-11-29 425-502-9XXX 9000–9999Assigned COMCAST IP PHONE, LLC 318J BELLEVUE WA
2006-11-29 425-677-7XXX 7000–7999Assigned COMCAST IP PHONE, LLC 318J ISSAQUAH WA
2006-11-29 425-677-8XXX 8000–8999Assigned COMCAST IP PHONE, LLC 318J ISSAQUAH WA
2006-11-29 425-948-6XXX 6000–6999Assigned COMCAST IP PHONE, LLC 318J SILVERLAKE WA
2006-11-29 425-948-7XXX 7000–7999Assigned COMCAST IP PHONE, LLC 318J SILVERLAKE WA
2006-11-16 425-322-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 EVERETT WA
2006-11-10 425-361-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 HALLS LAKE WA
2006-11-07 425-502-0XXX 0000–0999Assigned T-MOBILE USA, INC. 6529 BELLEVUE WA
2006-10-31 425-250-5XXX 5000–5999Assigned ELECTRIC LIGHTWAVE LLC DBA ALLSTREAM 7173 KIRKLAND WA
2006-10-31 425-512-0XXX 0000–0999Assigned COMCAST IP PHONE, LLC 318J EVERETT WA
2006-10-23 425-245-3XXX 3000–3999Assigned T-MOBILE USA, INC. 6529 HALLS LAKE WA
2006-10-20 425-791-0XXX 0000–0999Assigned T-MOBILE USA, INC. 6529 EVERETT WA
2006-10-20 425-791-1XXX 1000–1999Assigned T-MOBILE USA, INC. 6529 EVERETT WA
2006-10-20 425-791-2XXX 2000–2999Assigned T-MOBILE USA, INC. 6529 EVERETT WA
2006-10-20 425-896-8XXX 8000–8999Assigned COMCAST IP PHONE, LLC 318J KIRKLAND WA
2006-10-20 425-898-4XXX 4000–4999Assigned COMCAST IP PHONE, LLC 318J KIRKLAND WA
2006-10-16 425-446-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 EVERETT WA
2006-10-16 425-446-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 EVERETT WA
2006-10-16 425-446-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 EVERETT WA
2006-10-16 425-446-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 EVERETT WA
2006-10-13 425-457-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 BELLEVUE WA
2006-10-13 425-457-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 BELLEVUE WA
2006-10-13 425-457-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 BELLEVUE WA
2006-10-13 425-457-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 BELLEVUE WA
2006-10-13 425-457-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 BELLEVUE WA
2006-10-13 425-457-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 BELLEVUE WA
2006-10-09 425-408-7XXX 7000–7999Assigned ELECTRIC LIGHTWAVE LLC DBA ALLSTREAM 7173 BOTHELL WA
2006-10-06 425-636-4XXX 4000–4999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - WA 7274 KIRKLAND WA
2006-10-06 425-636-5XXX 5000–5999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - WA 7274 KIRKLAND WA
2006-10-06 425-636-7XXX 7000–7999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - WA 7274 KIRKLAND WA
2006-10-06 425-949-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 BOTHELL WA
2006-10-05 425-457-5XXX 5000–5999Assigned QWEST CORPORATION 9638 BELLEVUE WA
2006-09-28 425-614-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 BELLEVUE WA
2006-09-26 425-638-3XXX 3000–3999Assigned T-MOBILE USA, INC. 6529 BELLEVUE WA
2006-09-26 425-638-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 BELLEVUE WA
2006-09-21 425-295-2XXX 2000–2999Assigned ONVOY, LLC - WA 483E ISSAQUAH WA
2006-09-18 425-322-3XXX 3000–3999Assigned COMCAST IP PHONE, LLC 318J EVERETT WA
2006-09-18 425-322-4XXX 4000–4999Assigned COMCAST IP PHONE, LLC 318J EVERETT WA
2006-09-18 425-322-5XXX 5000–5999Assigned COMCAST IP PHONE, LLC 318J EVERETT WA
2006-09-14 425-361-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 HALLS LAKE WA
2006-09-14 425-361-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 HALLS LAKE WA
2006-09-07 425-292-1XXX 1000–1999Assigned ONVOY, LLC - WA 483E NORTH BEND WA

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.