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
2005-01-14 918-876-1XXX 1000–1999Assigned LEVEL 3 COMMUNICATIONS, LLC - OK 5257 BARTLESVL OK
2005-01-06 918-347-6XXX 6000–6999Assigned LEVEL 3 COMMUNICATIONS, LLC - OK 5257 SAPULPA OK
2005-01-05 918-716-9XXX 9000–9999Assigned LEVEL 3 COMMUNICATIONS, LLC - OK 5257 OKEMAH OK
2004-12-28 918-398-8XXX 8000–8999Assigned ONVOY, LLC - OK 409F TULSA OK
2004-12-21 918-286-6XXX 6000–6999Assigned COMCAST IP PHONE, LLC 318J BROKENARRW OK
2004-12-21 918-286-7XXX 7000–7999Assigned COMCAST IP PHONE, LLC 318J BROKENARRW OK
2004-12-16 918-559-9XXX 9000–9999Assigned UNITED STATES CELLULAR - OK 6272 NOWATA OK
2004-12-15 918-876-0XXX 0000–0999Assigned LEVEL 3 COMMUNICATIONS, LLC - OK 5257 BARTLESVL OK
2004-12-02 918-770-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 TULSA OK
2004-12-02 918-770-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 TULSA OK
2004-12-02 918-770-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 TULSA OK
2004-12-02 918-770-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 TULSA OK
2004-12-02 918-770-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 TULSA OK
2004-11-23 918-728-7XXX 7000–7999Assigned COMCAST IP PHONE, LLC 318J TULSA OK
2004-11-23 918-728-8XXX 8000–8999Assigned COMCAST IP PHONE, LLC 318J TULSA OK
2004-11-16 918-269-2XXX 2000–2999Assigned T-MOBILE USA, INC. 6529 TULSA OK
2004-11-16 918-286-5XXX 5000–5999Assigned VALOR TELECOM TX.LP-OK DBA WINDSTREAM COMM SW 1165 BROKENARRW OK
2004-11-05 918-279-6XXX 6000–6999Assigned COMCAST IP PHONE, LLC 318J COWETA OK
2004-11-02 918-553-1XXX 1000–1999Assigned AT&T ENTERPRISES, LLC 516C COLLINSVL OK
2004-10-27 918-304-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 OKMULGEE OK
2004-10-20 918-530-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 PRYOR OK
2004-10-13 918-207-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 TAHLEQUAH OK
2004-10-13 918-207-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 TAHLEQUAH OK
2004-10-13 918-207-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 TAHLEQUAH OK
2004-10-08 918-759-7XXX 7000–7999Assigned UNITED STATES CELLULAR - OK 6272 OKMULGEE OK
2004-10-06 918-286-4XXX 4000–4999Assigned COMCAST IP PHONE, LLC 318J BROKENARRW OK
2004-08-27 918-283-4XXX 4000–4999Assigned COMCAST IP PHONE, LLC 318J CLAREMORE OK
2004-07-30 918-289-2XXX 2000–2999Assigned LEVEL 3 COMMUNICATIONS, LLC - OK 5257 TULSA OK
2004-06-22 918-609-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - OK 5257 OWASSO OK
2004-06-11 918-602-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - OK 5257 COLLINSVL OK
2004-06-08 918-907-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 BARTLESVL OK
2004-06-01 918-731-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - OK 5257 DEPEW OK
2004-05-10 918-806-6XXX 6000–6999Assigned COMCAST IP PHONE, LLC 318J BROKENARRW OK
2004-05-07 918-578-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - OK 5257 SKIATOOK OK
2004-05-05 918-346-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 TULSA OK
2004-05-05 918-346-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 TULSA OK
2004-05-05 918-346-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 TULSA OK
2004-05-05 918-346-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 TULSA OK
2004-05-05 918-346-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 TULSA OK
2004-05-05 918-346-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 TULSA OK
2004-05-05 918-346-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 TULSA OK
2004-05-05 918-346-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 TULSA OK
2004-04-22 918-612-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - OK 5257 SPIRO OK
2004-04-16 918-346-6XXX 6000–6999Assigned COMCAST IP PHONE, LLC 318J TULSA OK
2004-04-15 918-771-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - OK 5257 BRISTOW OK
2004-04-13 918-530-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 PRYOR OK
2004-04-07 918-926-3XXX 3000–3999Assigned LEVEL 3 COMMUNICATIONS, LLC - OK 5257 CHECOTAH OK
2004-03-26 918-728-3XXX 3000–3999Assigned COMCAST IP PHONE, LLC 318J TULSA OK
2004-03-22 918-990-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 BRAGGS OK
2004-03-15 918-379-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - OK 5257 CATOOSA 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.