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
2015-01-12 918-998-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 TULSA OK
2015-01-12 918-998-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 TULSA OK
2015-01-12 918-998-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 TULSA OK
2015-01-12 918-998-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 TULSA OK
2015-01-12 918-998-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 TULSA OK
2014-12-31 918-326-5XXX 5000–5999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J COLCORD OK
2014-12-26 918-940-0XXX 0000–0999Assigned METROPCS, INC. 5562 BROKENARRW OK
2014-12-23 918-940-3XXX 3000–3999Assigned COMCAST IP PHONE, LLC 318J BROKENARRW OK
2014-12-16 918-719-9XXX 9000–9999Assigned PEERLESS NETWORK OF OKLAHOMA, LLC - OK 384H COPAN OK
2014-12-10 918-291-1XXX 1000–1999Assigned PEERLESS NETWORK OF OKLAHOMA, LLC - OK 384H JENKS OK
2014-12-10 918-777-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 OKMULGEE OK
2014-12-09 918-721-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OK 5813 POTEAU OK
2014-12-04 918-262-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J WATTS OK
2014-12-04 918-436-3XXX 3000–3999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J POCOLA OK
2014-12-04 918-498-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J WUNIONTOWN OK
2014-12-03 918-626-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - OK 5257 CEDARS OK
2014-12-03 918-875-5XXX 5000–5999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J MOFFETT OK
2014-11-13 918-820-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 MCALESTER OK
2014-11-13 918-820-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 MCALESTER OK
2014-11-11 918-786-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - OK 119F GROVE OK
2014-11-05 918-940-2XXX 2000–2999Assigned COMCAST IP PHONE, LLC 318J BROKENARRW OK
2014-11-04 918-495-4XXX 4000–4999Assigned PAETEC ITEL, LLC 829J TULSA OK
2014-11-04 918-861-4XXX 4000–4999Assigned AT&T ENTERPRISES, LLC 516C TULSA OK
2014-10-30 918-931-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 TAHLEQUAH OK
2014-10-30 918-931-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 TAHLEQUAH OK
2014-10-29 918-986-9XXX 9000–9999Assigned COMCAST IP PHONE, LLC 318J TULSA OK
2014-10-28 918-964-2XXX 2000–2999Assigned T-MOBILE USA, INC. 6529 GROVE OK
2014-10-27 918-947-9XXX 9000–9999Assigned BANDWIDTH.COM CLEC, LLC - OK 119F TULSA OK
2014-10-27 918-982-6XXX 6000–6999Assigned BANDWIDTH.COM CLEC, LLC - OK 119F TULSA OK
2014-10-27 918-984-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - OK 119F TULSA OK
2014-10-27 918-984-4XXX 4000–4999Assigned BANDWIDTH.COM CLEC, LLC - OK 119F TULSA OK
2014-10-27 918-984-9XXX 9000–9999Assigned BANDWIDTH.COM CLEC, LLC - OK 119F TULSA OK
2014-10-27 918-986-7XXX 7000–7999Assigned BANDWIDTH.COM CLEC, LLC - OK 119F TULSA OK
2014-10-21 918-217-8XXX 8000–8999Assigned BANDWIDTH.COM CLEC, LLC - OK 119F SKIATOOK OK
2014-10-21 918-568-2XXX 2000–2999Assigned T-MOBILE USA, INC. 6529 TULSA OK
2014-10-21 918-568-3XXX 3000–3999Assigned T-MOBILE USA, INC. 6529 TULSA OK
2014-10-21 918-568-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 TULSA OK
2014-10-21 918-568-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 TULSA OK
2014-10-21 918-954-4XXX 4000–4999Assigned T-MOBILE USA, INC. 6529 TULSA OK
2014-10-21 918-954-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 TULSA OK
2014-10-21 918-954-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 TULSA OK
2014-10-21 918-954-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 TULSA OK
2014-10-21 918-954-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 TULSA OK
2014-10-21 918-954-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 TULSA OK
2014-10-14 918-934-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 TULSA OK
2014-10-14 918-934-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 TULSA OK
2014-10-14 918-934-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 TULSA OK
2014-10-14 918-934-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 TULSA OK
2014-10-14 918-934-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 TULSA OK
2014-10-14 918-934-7XXX 7000–7999Assigned 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.