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
2015-07-23 918-523-4XXX 4000–4999Assigned METROPCS, INC. 5562 TULSA OK
2015-07-17 918-280-0XXX 0000–0999Assigned AT&T ENTERPRISES, LLC 516C TULSA OK
2015-07-15 918-552-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA OK - LLC 530C STIGLER OK
2015-07-15 918-578-8XXX 8000–8999Assigned TELEPORT COMMUNICATIONS AMERICA OK - LLC 530C SKIATOOK OK
2015-07-14 918-303-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA OK - LLC 530C PAWNEE OK
2015-07-14 918-340-6XXX 6000–6999Assigned LEVEL 3 COMMUNICATIONS, LLC - OK 5257 TULSA OK
2015-07-14 918-358-4XXX 4000–4999Assigned TELEPORT COMMUNICATIONS AMERICA OK - LLC 530C CLEVELAND OK
2015-07-10 918-940-5XXX 5000–5999Assigned COMCAST IP PHONE, LLC 318J BROKENARRW OK
2015-07-06 918-984-2XXX 2000–2999Assigned ONVOY, LLC - OK 409F TULSA OK
2015-07-06 918-992-9XXX 9000–9999Assigned ONVOY, LLC - OK 409F TULSA OK
2015-06-30 918-410-7XXX 7000–7999Assigned OKLAHOMA WINDSTREAM, INC. 2011 STILWELL OK
2015-06-30 918-564-7XXX 7000–7999Assigned OKLAHOMA WINDSTREAM, INC. 2011 POTEAU OK
2015-06-30 918-705-7XXX 7000–7999Assigned OKLAHOMA WINDSTREAM, INC. 2011 VIAN OK
2015-06-30 918-843-7XXX 7000–7999Assigned VALOR TELECOM TX.LP-OK DBA WINDSTREAM COMM SW 1165 CHECOTAH OK
2015-06-30 918-992-0XXX 0000–0999Assigned T-MOBILE USA, INC. 6529 TULSA OK
2015-06-19 918-716-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 OKEMAH OK
2015-06-19 918-843-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 CHECOTAH OK
2015-06-15 918-701-3XXX 3000–3999Assigned COMCAST IP PHONE, LLC 318J JENKS OK
2015-06-15 918-940-7XXX 7000–7999Assigned COMCAST IP PHONE, LLC 318J BROKENARRW OK
2015-06-15 918-940-8XXX 8000–8999Assigned COMCAST IP PHONE, LLC 318J BROKENARRW OK
2015-06-15 918-984-3XXX 3000–3999Assigned COMCAST IP PHONE, LLC 318J TULSA OK
2015-06-12 918-525-7XXX 7000–7999Assigned METROPCS, INC. 5562 TAHLEQUAH OK
2015-06-12 918-525-8XXX 8000–8999Assigned METROPCS, INC. 5562 TAHLEQUAH OK
2015-06-10 918-268-8XXX 8000–8999Assigned BANDWIDTH.COM CLEC, LLC - OK 119F HENRYETTA OK
2015-06-10 918-322-9XXX 9000–9999Assigned BANDWIDTH.COM CLEC, LLC - OK 119F KIEFER OK
2015-06-10 918-480-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - OK 119F SPERRY OK
2015-06-10 918-701-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - OK 119F JENKS OK
2015-06-10 918-862-2XXX 2000–2999Assigned BANDWIDTH.COM CLEC, LLC - OK 119F OILTON OK
2015-06-08 918-399-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 CUSHING OK
2015-06-01 918-324-3XXX 3000–3999Assigned BANDWIDTH.COM CLEC, LLC - OK 119F DEPEW OK
2015-06-01 918-358-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - OK 119F CLEVELAND OK
2015-06-01 918-416-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - OK 119F CATOOSA OK
2015-05-27 918-308-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - OK 119F HARTSHORNE OK
2015-05-27 918-383-2XXX 2000–2999Assigned BANDWIDTH.COM CLEC, LLC - OK 119F NEW HOME OK
2015-05-27 918-910-2XXX 2000–2999Assigned BANDWIDTH.COM CLEC, LLC - OK 119F MUSKOGEE OK
2015-05-26 918-285-7XXX 7000–7999Assigned UNITED STATES CELLULAR - OK 6272 CUSHING OK
2015-05-26 918-613-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 TULSA OK
2015-05-26 918-613-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 TULSA OK
2015-05-26 918-613-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 TULSA OK
2015-05-26 918-896-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 TULSA OK
2015-05-26 918-896-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 TULSA OK
2015-05-26 918-927-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 TULSA OK
2015-05-21 918-701-7XXX 7000–7999Assigned AT&T ENTERPRISES, LLC 516C JENKS OK
2015-05-14 918-490-9XXX 9000–9999Assigned AT&T ENTERPRISES, LLC 516C EUFAULA OK
2015-05-14 918-604-5XXX 5000–5999Assigned AT&T ENTERPRISES, LLC 516C PAWHUSKA OK
2015-05-14 918-731-5XXX 5000–5999Assigned AT&T ENTERPRISES, LLC 516C DEPEW OK
2015-05-14 918-917-1XXX 1000–1999Assigned AT&T ENTERPRISES, LLC 516C WILBURTON OK
2015-05-14 918-940-4XXX 4000–4999Assigned COMCAST IP PHONE, LLC 318J BROKENARRW OK
2015-05-11 918-701-2XXX 2000–2999Assigned COMCAST IP PHONE, LLC 318J JENKS OK
2015-05-04 918-219-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 AFTON 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.