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
2016-09-19 918-972-0XXX 0000–0999Assigned ONVOY, LLC - OK 409F DEWEY OK
2016-09-19 918-972-1XXX 1000–1999Assigned ONVOY, LLC - OK 409F DEWEY OK
2016-09-19 918-973-5XXX 5000–5999Assigned ONVOY, LLC - OK 409F OWASSO OK
2016-09-19 918-981-7XXX 7000–7999Assigned ONVOY, LLC - OK 409F PRYOR OK
2016-09-19 918-981-9XXX 9000–9999Assigned ONVOY, LLC - OK 409F PRYOR OK
2016-09-16 918-228-3XXX 3000–3999Assigned ONVOY, LLC - OK 409F ALLUWE OK
2016-09-16 918-257-3XXX 3000–3999Assigned ONVOY, LLC - OK 409F AFTON OK
2016-09-16 918-257-6XXX 6000–6999Assigned ONVOY, LLC - OK 409F AFTON OK
2016-09-16 918-332-9XXX 9000–9999Assigned ONVOY, LLC - OK 409F BARTLESVL OK
2016-09-16 918-338-6XXX 6000–6999Assigned ONVOY, LLC - OK 409F BARTLESVL OK
2016-08-22 918-891-4XXX 4000–4999Assigned COMCAST IP PHONE, LLC 318J TULSA OK
2016-08-17 918-201-8XXX 8000–8999Assigned TELEPORT COMMUNICATIONS AMERICA OK - LLC 530C WAGONER OK
2016-08-17 918-581-3XXX 3000–3999Assigned T-MOBILE USA, INC. 6529 TULSA OK
2016-08-09 918-974-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 POTEAU OK
2016-08-03 918-302-1XXX 1000–1999Assigned ONVOY, LLC - OK 409F MCALESTER OK
2016-07-29 918-571-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 SALLISAW OK
2016-07-28 918-674-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - OK 5257 QUAPAW OK
2016-07-27 918-900-2XXX 2000–2999Assigned BANDWIDTH.COM CLEC, LLC - OK 119F TULSA OK
2016-07-22 918-544-4XXX 4000–4999Assigned PAETEC ITEL, LLC 829J MIAMI OK
2016-07-21 918-771-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 BRISTOW OK
2016-07-21 918-771-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 BRISTOW OK
2016-07-19 918-972-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 DEWEY OK
2016-07-12 918-330-0XXX 0000–0999Assigned T-MOBILE USA, INC. 6529 BARTLESVL OK
2016-07-12 918-330-1XXX 1000–1999Assigned T-MOBILE USA, INC. 6529 BARTLESVL OK
2016-07-12 918-330-2XXX 2000–2999Assigned T-MOBILE USA, INC. 6529 BARTLESVL OK
2016-07-12 918-330-3XXX 3000–3999Assigned T-MOBILE USA, INC. 6529 BARTLESVL OK
2016-07-12 918-330-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 BARTLESVL OK
2016-07-12 918-330-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 BARTLESVL OK
2016-07-12 918-330-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 BARTLESVL OK
2016-07-12 918-766-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 BARTLESVL OK
2016-07-12 918-766-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 BARTLESVL OK
2016-06-23 918-248-6XXX 6000–6999Assigned BANDWIDTH.COM CLEC, LLC - OK 119F SAPULPA OK
2016-06-21 918-318-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 MCALESTER OK
2016-06-21 918-318-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 MCALESTER OK
2016-06-17 918-956-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - OK 119F CLEVELAND OK
2016-06-02 918-428-5XXX 5000–5999Assigned METROPCS, INC. 5562 TULSA OK
2016-06-02 918-438-4XXX 4000–4999Assigned METROPCS, INC. 5562 TULSA OK
2016-06-01 918-887-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA OK - LLC 530C COWETA OK
2016-05-26 918-419-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA OK - LLC 530C SAND SPG OK
2016-05-25 918-329-8XXX 8000–8999Assigned METROPCS, INC. 5562 MCALESTER OK
2016-04-12 918-981-8XXX 8000–8999Assigned COMCAST IP PHONE, LLC 318J PRYOR OK
2016-03-22 918-505-2XXX 2000–2999Assigned LEVEL 3 COMMUNICATIONS, LLC - OK 5257 BROKENARRW OK
2016-03-15 918-215-6XXX 6000–6999Assigned PEERLESS NETWORK OF OKLAHOMA, LLC - OK 384H SAND SPG OK
2016-03-14 918-890-0XXX 0000–0999Assigned ONVOY, LLC - OK 409F DRUMRIGHT OK
2016-03-14 918-890-1XXX 1000–1999Assigned ONVOY, LLC - OK 409F DRUMRIGHT OK
2016-03-10 918-215-7XXX 7000–7999Assigned ONVOY, LLC - OK 409F SAND SPG OK
2016-03-10 918-215-8XXX 8000–8999Assigned ONVOY, LLC - OK 409F SAND SPG OK
2016-03-09 918-771-6XXX 6000–6999Assigned ONVOY, LLC - OK 409F BRISTOW OK
2016-03-09 918-771-7XXX 7000–7999Assigned ONVOY, LLC - OK 409F BRISTOW OK
2016-03-03 918-217-4XXX 4000–4999Assigned ONVOY, LLC - OK 409F SKIATOOK 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.