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
2011-05-17 918-209-5XXX 5000–5999Assigned COMCAST IP PHONE, LLC 318J JENKS OK
2011-05-13 918-214-8XXX 8000–8999Assigned BTC BROADBAND, INC. 669B BARTLESVL OK
2011-05-13 918-887-1XXX 1000–1999Assigned VALOR TELECOM TX.LP-OK DBA WINDSTREAM COMM SW 1165 COWETA OK
2011-05-13 918-928-6XXX 6000–6999Assigned BANDWIDTH.COM CLEC, LLC - OK 119F OWASSO OK
2011-05-13 918-928-8XXX 8000–8999Assigned BANDWIDTH.COM CLEC, LLC - OK 119F OWASSO OK
2011-05-10 918-876-5XXX 5000–5999Assigned LEVEL 3 COMMUNICATIONS, LLC - OK 5257 BARTLESVL OK
2011-05-09 918-710-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OK 5813 TULSA OK
2011-05-09 918-710-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OK 5813 TULSA OK
2011-05-09 918-710-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OK 5813 TULSA OK
2011-05-03 918-710-2XXX 2000–2999Assigned LEVEL 3 COMMUNICATIONS, LLC - OK 5257 TULSA OK
2011-05-03 918-710-3XXX 3000–3999Assigned LEVEL 3 COMMUNICATIONS, LLC - OK 5257 TULSA OK
2011-04-26 918-710-4XXX 4000–4999Assigned COMCAST IP PHONE, LLC 318J TULSA OK
2011-04-25 918-892-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 TULSA OK
2011-04-25 918-892-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 TULSA OK
2011-04-19 918-777-0XXX 0000–0999Assigned T-MOBILE USA, INC. 6529 OKMULGEE OK
2011-04-19 918-777-1XXX 1000–1999Assigned T-MOBILE USA, INC. 6529 OKMULGEE OK
2011-04-06 918-844-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 DRUMRIGHT OK
2011-04-05 918-771-3XXX 3000–3999Assigned LEVEL 3 COMMUNICATIONS, LLC - OK 5257 BRISTOW OK
2011-03-25 918-718-0XXX 0000–0999Assigned T-MOBILE USA, INC. 6529 TAHLEQUAH OK
2011-03-25 918-718-2XXX 2000–2999Assigned T-MOBILE USA, INC. 6529 TAHLEQUAH OK
2011-03-22 918-310-3XXX 3000–3999Assigned T-MOBILE USA, INC. 6529 MUSKOGEE OK
2011-03-22 918-310-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 MUSKOGEE OK
2011-03-15 918-804-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 TULSA OK
2011-03-15 918-804-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 TULSA OK
2011-03-15 918-804-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 TULSA OK
2011-03-15 918-804-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 TULSA OK
2011-03-15 918-804-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 TULSA OK
2011-03-15 918-804-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 TULSA OK
2011-03-15 918-804-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 TULSA OK
2011-03-15 918-804-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 TULSA OK
2011-03-15 918-961-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 MIAMI OK
2011-03-10 918-710-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OK 5813 TULSA OK
2011-03-10 918-926-1XXX 1000–1999Assigned T-MOBILE USA, INC. 6529 CHECOTAH OK
2011-03-10 918-970-2XXX 2000–2999Assigned COMCAST IP PHONE, LLC 318J BIXBY OK
2011-03-10 918-977-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OK 5813 BARTLESVL OK
2011-03-03 918-235-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 SALLISAW OK
2011-02-15 918-641-4XXX 4000–4999Assigned BANDWIDTH.COM CLEC, LLC - OK 119F TULSA OK
2011-02-15 918-732-9XXX 9000–9999Assigned BANDWIDTH.COM CLEC, LLC - OK 119F TULSA OK
2011-02-14 918-710-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OK 5813 TULSA OK
2011-02-14 918-710-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OK 5813 TULSA OK
2011-02-09 918-321-7XXX 7000–7999Assigned COMCAST IP PHONE, LLC 318J KIEFER OK
2011-02-04 918-932-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OK 5813 TULSA OK
2011-02-04 918-932-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OK 5813 TULSA OK
2011-02-02 918-932-8XXX 8000–8999Assigned AT&T ENTERPRISES, LLC 516C TULSA OK
2011-01-28 918-777-4XXX 4000–4999Assigned ONVOY, LLC - OK 409F OKMULGEE OK
2011-01-28 918-777-7XXX 7000–7999Assigned ONVOY, LLC - OK 409F OKMULGEE OK
2011-01-26 918-644-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 TULSA OK
2011-01-26 918-644-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 TULSA OK
2011-01-19 918-893-2XXX 2000–2999Assigned COMCAST IP PHONE, LLC 318J BROKENARRW OK
2011-01-18 918-804-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 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.