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 918
NEW CINGULAR WIRELESS PCS, LLC - IL 5
BOOST SUBSCRIBERCO L.L.C. 1
BANDWIDTH.COM CLEC, LLC - OK 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
2011-10-21 918-240-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OK 5813 TULSA OK
2011-10-21 918-240-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OK 5813 TULSA OK
2011-10-21 918-240-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OK 5813 TULSA OK
2011-10-21 918-240-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OK 5813 TULSA OK
2011-10-21 918-240-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OK 5813 TULSA OK
2011-10-21 918-383-5XXX 5000–5999Assigned AT&T ENTERPRISES, LLC 516C NEW HOME OK
2011-10-20 918-315-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OK 5813 SALLISAW OK
2011-10-19 918-226-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OK 5813 KANSAS OK
2011-10-19 918-893-7XXX 7000–7999Assigned COMCAST IP PHONE, LLC 318J BROKENARRW OK
2011-10-17 918-264-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OK 5813 TULSA OK
2011-10-17 918-264-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OK 5813 TULSA OK
2011-10-17 918-264-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OK 5813 TULSA OK
2011-10-17 918-264-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OK 5813 TULSA OK
2011-10-17 918-264-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OK 5813 TULSA OK
2011-10-17 918-280-1XXX 1000–1999Assigned TELEPORT COMMUNICATIONS AMERICA OK - LLC 530C TULSA OK
2011-10-12 918-210-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OK 5813 TULSA OK
2011-10-12 918-210-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OK 5813 TULSA OK
2011-10-12 918-772-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OK 5813 TAHLEQUAH OK
2011-10-05 918-210-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OK 5813 TULSA OK
2011-10-05 918-210-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OK 5813 TULSA OK
2011-10-05 918-210-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OK 5813 TULSA OK
2011-10-05 918-210-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OK 5813 TULSA OK
2011-09-21 918-565-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 TULSA OK
2011-09-21 918-565-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 TULSA OK
2011-09-21 918-565-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 TULSA OK
2011-09-21 918-565-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 TULSA OK
2011-09-21 918-613-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 TULSA OK
2011-09-21 918-613-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 TULSA OK
2011-09-21 918-613-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 TULSA OK
2011-09-21 918-730-0XXX 0000–0999Assigned T-MOBILE USA, INC. 6529 TULSA OK
2011-09-21 918-730-3XXX 3000–3999Assigned T-MOBILE USA, INC. 6529 TULSA OK
2011-09-21 918-730-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 TULSA OK
2011-09-21 918-730-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 TULSA OK
2011-09-21 918-730-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 TULSA OK
2011-09-21 918-804-0XXX 0000–0999Assigned T-MOBILE USA, INC. 6529 TULSA OK
2011-09-21 918-936-0XXX 0000–0999Assigned T-MOBILE USA, INC. 6529 TULSA OK
2011-09-21 918-936-1XXX 1000–1999Assigned T-MOBILE USA, INC. 6529 TULSA OK
2011-09-20 918-210-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OK 5813 TULSA OK
2011-09-20 918-210-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OK 5813 TULSA OK
2011-09-20 918-210-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OK 5813 TULSA OK
2011-09-20 918-210-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OK 5813 TULSA OK
2011-09-19 918-327-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 BARTLESVL OK
2011-09-13 918-380-7XXX 7000–7999Assigned AT&T ENTERPRISES, LLC 516C BRAGGS OK
2011-09-09 918-919-5XXX 5000–5999Assigned LEVEL 3 COMMUNICATIONS, LLC - OK 5257 MIAMI OK
2011-08-26 918-841-3XXX 3000–3999Assigned T-MOBILE USA, INC. 6529 BARTLESVL OK
2011-08-26 918-841-4XXX 4000–4999Assigned T-MOBILE USA, INC. 6529 BARTLESVL OK
2011-08-19 918-893-1XXX 1000–1999Assigned COMCAST IP PHONE, LLC 318J BROKENARRW OK
2011-08-15 918-644-0XXX 0000–0999Assigned T-MOBILE USA, INC. 6529 TULSA OK
2011-08-15 918-644-1XXX 1000–1999Assigned T-MOBILE USA, INC. 6529 TULSA OK
2011-08-15 918-644-2XXX 2000–2999Assigned T-MOBILE USA, INC. 6529 TULSA OK

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.