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
2014-04-16 918-807-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 BRISTOW OK
2014-04-14 918-992-5XXX 5000–5999Assigned AT&T ENTERPRISES, LLC 516C TULSA OK
2014-04-10 918-506-6XXX 6000–6999Assigned PAETEC ITEL, LLC 829J TAHLEQUAH OK
2014-04-10 918-779-1XXX 1000–1999Assigned LEVEL 3 COMMUNICATIONS, LLC - OK 5257 TULSA OK
2014-04-10 918-992-2XXX 2000–2999Assigned LEVEL 3 COMMUNICATIONS, LLC - OK 5257 TULSA OK
2014-04-09 918-721-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OK 5813 POTEAU OK
2014-04-03 918-471-6XXX 6000–6999Assigned UNITED STATES CELLULAR - OK 6272 WILBURTON OK
2014-03-31 918-248-2XXX 2000–2999Assigned COMCAST IP PHONE, LLC 318J SAPULPA OK
2014-03-07 918-205-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - OK 119F COLLINSVL OK
2014-02-24 918-471-7XXX 7000–7999Assigned UNITED STATES CELLULAR - OK 6272 WILBURTON OK
2014-02-24 918-559-8XXX 8000–8999Assigned UNITED STATES CELLULAR - OK 6272 NOWATA OK
2014-02-21 918-817-0XXX 0000–0999Assigned T-MOBILE USA, INC. 6529 SALLISAW OK
2014-02-21 918-817-1XXX 1000–1999Assigned T-MOBILE USA, INC. 6529 SALLISAW OK
2014-02-12 918-233-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - OK 5257 SO CHETOPA OK
2014-02-07 918-506-2XXX 2000–2999Assigned T-MOBILE USA, INC. 6529 TAHLEQUAH OK
2014-02-07 918-506-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 TAHLEQUAH OK
2014-02-03 918-201-5XXX 5000–5999Assigned CSC VOICE, LLC 612K WAGONER OK
2014-02-03 918-201-7XXX 7000–7999Assigned CSC VOICE, LLC 612K WAGONER OK
2014-02-03 918-223-9XXX 9000–9999Assigned CSC VOICE, LLC 612K CUSHING OK
2014-02-03 918-268-2XXX 2000–2999Assigned CSC VOICE, LLC 612K HENRYETTA OK
2014-02-03 918-777-2XXX 2000–2999Assigned CSC VOICE, LLC 612K OKMULGEE OK
2014-02-03 918-801-7XXX 7000–7999Assigned CSC VOICE, LLC 612K GROVE OK
2014-02-03 918-844-1XXX 1000–1999Assigned CSC VOICE, LLC 612K DRUMRIGHT OK
2014-01-13 918-219-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 AFTON OK
2014-01-13 918-219-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 AFTON OK
2013-12-26 918-505-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - OK 5257 BROKENARRW OK
2013-12-20 918-869-4XXX 4000–4999Assigned PAETEC ITEL, LLC 829J MUSKOGEE OK
2013-12-20 918-947-7XXX 7000–7999Assigned COMCAST IP PHONE, LLC 318J TULSA OK
2013-12-10 918-676-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 FAIRLAND OK
2013-11-25 918-984-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 TULSA OK
2013-11-25 918-984-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 TULSA OK
2013-11-19 918-602-2XXX 2000–2999Assigned LEVEL 3 COMMUNICATIONS, LLC - OK 5257 COLLINSVL OK
2013-11-05 918-910-3XXX 3000–3999Assigned CSC VOICE, LLC 612K MUSKOGEE OK
2013-11-05 918-910-4XXX 4000–4999Assigned CSC VOICE, LLC 612K MUSKOGEE OK
2013-11-05 918-910-5XXX 5000–5999Assigned CSC VOICE, LLC 612K MUSKOGEE OK
2013-11-04 918-679-8XXX 8000–8999Assigned SOUTHWESTERN BELL 9533 CLAREMORE OK
2013-10-30 918-913-7XXX 7000–7999Assigned CSC VOICE, LLC 612K MUSKOGEE OK
2013-10-22 918-209-1XXX 1000–1999Assigned METROPCS, INC. 5562 JENKS OK
2013-10-22 918-262-0XXX 0000–0999Assigned METROPCS, INC. 5562 WATTS OK
2013-10-22 918-505-8XXX 8000–8999Assigned METROPCS, INC. 5562 BROKENARRW OK
2013-10-22 918-982-0XXX 0000–0999Assigned METROPCS, INC. 5562 TULSA OK
2013-10-22 918-982-1XXX 1000–1999Assigned METROPCS, INC. 5562 TULSA OK
2013-10-22 918-982-7XXX 7000–7999Assigned METROPCS, INC. 5562 TULSA OK
2013-10-22 918-982-8XXX 8000–8999Assigned METROPCS, INC. 5562 TULSA OK
2013-10-11 918-508-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 TULSA OK
2013-10-11 918-508-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 TULSA OK
2013-10-11 918-616-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 MUSKOGEE OK
2013-10-11 918-876-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 BARTLESVL OK
2013-10-11 918-876-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 BARTLESVL OK
2013-10-11 918-876-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 BARTLESVL 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.