NumberResearch Membership · Data 09/19/2026

Recent thousands-block assignments

0 blocks assigned in the last 30 days · from the daily NANPA thousands-block report, 09/19/2026

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, all time — NPA 918
COMCAST IP PHONE, LLC 221
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
2023-10-02 918-539-6XXX 6000–6999Assigned COMCAST IP PHONE, LLC 318J MUSKOGEE OK
2023-09-28 918-539-3XXX 3000–3999Assigned COMCAST IP PHONE, LLC 318J MUSKOGEE OK
2023-09-28 918-539-4XXX 4000–4999Assigned COMCAST IP PHONE, LLC 318J MUSKOGEE OK
2023-09-28 918-539-5XXX 5000–5999Assigned COMCAST IP PHONE, LLC 318J MUSKOGEE OK
2023-09-28 918-539-7XXX 7000–7999Assigned COMCAST IP PHONE, LLC 318J MUSKOGEE OK
2022-10-04 918-827-9XXX 9000–9999Assigned COMCAST IP PHONE, LLC 318J MOUNDS OK
2019-05-28 918-822-6XXX 6000–6999Assigned COMCAST IP PHONE, LLC 318J TAHLEQUAH OK
2019-05-28 918-822-9XXX 9000–9999Assigned COMCAST IP PHONE, LLC 318J TAHLEQUAH OK
2019-05-06 918-400-8XXX 8000–8999Assigned COMCAST IP PHONE, LLC 318J FORTGIBSON OK
2018-05-11 918-957-4XXX 4000–4999Assigned COMCAST IP PHONE, LLC 318J BROKENARRW OK
2018-03-13 918-322-8XXX 8000–8999Assigned COMCAST IP PHONE, LLC 318J KIEFER OK
2017-11-30 918-262-3XXX 3000–3999Assigned COMCAST IP PHONE, LLC 318J WATTS OK
2017-11-29 918-626-6XXX 6000–6999Assigned COMCAST IP PHONE, LLC 318J CEDARS OK
2017-10-30 918-842-4XXX 4000–4999Assigned COMCAST IP PHONE, LLC 318J SOCOFFEYVL OK
2017-09-21 918-347-9XXX 9000–9999Assigned COMCAST IP PHONE, LLC 318J SAPULPA OK
2017-09-21 918-379-5XXX 5000–5999Assigned COMCAST IP PHONE, LLC 318J CATOOSA OK
2017-09-21 918-503-4XXX 4000–4999Assigned COMCAST IP PHONE, LLC 318J MULDROW OK
2017-09-21 918-528-5XXX 5000–5999Assigned COMCAST IP PHONE, LLC 318J JENKS OK
2017-09-21 918-602-5XXX 5000–5999Assigned COMCAST IP PHONE, LLC 318J COLLINSVL OK
2017-09-21 918-887-8XXX 8000–8999Assigned COMCAST IP PHONE, LLC 318J COWETA OK
2017-09-21 918-923-2XXX 2000–2999Assigned COMCAST IP PHONE, LLC 318J CLAREMORE OK
2017-09-21 918-943-5XXX 5000–5999Assigned COMCAST IP PHONE, LLC 318J BIXBY OK
2017-09-21 918-957-5XXX 5000–5999Assigned COMCAST IP PHONE, LLC 318J BROKENARRW OK
2017-05-02 918-910-6XXX 6000–6999Assigned COMCAST IP PHONE, LLC 318J MUSKOGEE OK
2017-03-16 918-957-1XXX 1000–1999Assigned COMCAST IP PHONE, LLC 318J BROKENARRW OK
2016-09-29 918-584-8XXX 8000–8999Assigned COMCAST IP PHONE, LLC 318J TULSA OK
2016-09-19 918-871-4XXX 4000–4999Assigned COMCAST IP PHONE, LLC 318J TAHLEQUAH OK
2016-08-22 918-891-4XXX 4000–4999Assigned COMCAST IP PHONE, LLC 318J TULSA OK
2016-04-12 918-981-8XXX 8000–8999Assigned COMCAST IP PHONE, LLC 318J PRYOR OK
2015-08-26 918-600-3XXX 3000–3999Assigned COMCAST IP PHONE, LLC 318J TULSA OK
2015-08-11 918-940-1XXX 1000–1999Assigned COMCAST IP PHONE, LLC 318J BROKENARRW OK
2015-07-10 918-940-5XXX 5000–5999Assigned COMCAST IP PHONE, LLC 318J BROKENARRW 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
2015-05-14 918-940-4XXX 4000–4999Assigned COMCAST IP PHONE, LLC 318J BROKENARRW OK
2015-05-11 918-701-2XXX 2000–2999Assigned COMCAST IP PHONE, LLC 318J JENKS OK
2015-04-06 918-578-6XXX 6000–6999Assigned COMCAST IP PHONE, LLC 318J SKIATOOK OK
2015-03-31 918-401-4XXX 4000–4999Assigned COMCAST IP PHONE, LLC 318J OWASSO OK
2015-02-25 918-271-5XXX 5000–5999Assigned COMCAST IP PHONE, LLC 318J TULSA OK
2015-02-25 918-271-7XXX 7000–7999Assigned COMCAST IP PHONE, LLC 318J TULSA OK
2015-01-20 918-340-7XXX 7000–7999Assigned COMCAST IP PHONE, LLC 318J TULSA OK
2015-01-20 918-986-8XXX 8000–8999Assigned COMCAST IP PHONE, LLC 318J TULSA OK
2014-12-23 918-940-3XXX 3000–3999Assigned COMCAST IP PHONE, LLC 318J BROKENARRW OK
2014-11-05 918-940-2XXX 2000–2999Assigned COMCAST IP PHONE, LLC 318J BROKENARRW OK
2014-10-29 918-986-9XXX 9000–9999Assigned COMCAST IP PHONE, LLC 318J TULSA OK
2014-10-07 918-943-1XXX 1000–1999Assigned COMCAST IP PHONE, LLC 318J BIXBY OK
2014-10-07 918-965-1XXX 1000–1999Assigned COMCAST IP PHONE, LLC 318J CLAREMORE OK
2014-08-14 918-417-7XXX 7000–7999Assigned COMCAST IP PHONE, LLC 318J JENKS OK

Source: NANPA Thousands Block Assignment Report (All Regions, Public), file date 09/19/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.