NumberResearch Membership · Data 09/20/2026

Recent thousands-block assignments

9 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 256
ONVOY, LLC - AL 5
NEW CINGULAR WIRELESS PCS, LLC - GA 2
CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AL 1
AHOI LLC 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
2016-10-24 256-297-6XXX 6000–6999Assigned AT&T ENTERPRISES, LLC 516C CULLMAN AL
2016-10-04 256-913-9XXX 9000–9999Assigned METROPCS, INC. 5562 JACKSONVL AL
2016-09-27 256-588-8XXX 8000–8999Assigned ONVOY, LLC - AL 604E KILLEN AL
2016-09-22 256-805-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - AL 072F SCOTTSBORO AL
2016-09-21 256-342-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AL 6804 ANNISTON AL
2016-09-16 256-905-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 MOULTON AL
2016-09-16 256-952-3XXX 3000–3999Assigned ONVOY, LLC - AL 604E GADSDEN AL
2016-09-16 256-952-4XXX 4000–4999Assigned ONVOY, LLC - AL 604E GADSDEN AL
2016-09-14 256-814-1XXX 1000–1999Assigned COMCAST IP PHONE, LLC 318J SHEFFIELD AL
2016-09-09 256-815-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 RUSSELLVL AL
2016-09-06 256-291-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 RUSSELLVL AL
2016-09-06 256-291-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 RUSSELLVL AL
2016-09-06 256-291-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 RUSSELLVL AL
2016-09-01 256-361-1XXX 1000–1999Assigned ONVOY, LLC - AL 604E HUNTSVILLE AL
2016-09-01 256-824-9XXX 9000–9999Assigned ONVOY, LLC - AL 604E HUNTSVILLE AL
2016-09-01 256-858-7XXX 7000–7999Assigned ONVOY, LLC - AL 604E HUNTSVILLE AL
2016-08-31 256-537-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 ALEXANDRCY AL
2016-08-30 256-800-1XXX 1000–1999Assigned CHARTER IP ENABLED SERVICES, LLC 792K ATHENS AL
2016-08-23 256-413-2XXX 2000–2999Assigned COMCAST IP PHONE, LLC 318J GADSDEN AL
2016-08-23 256-964-8XXX 8000–8999Assigned COMCAST IP PHONE, LLC 318J HUNTSVILLE AL
2016-08-22 256-445-7XXX 7000–7999Assigned AT&T ENTERPRISES, LLC 516C DECATUR AL
2016-08-18 256-716-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AL 6804 HUNTSVILLE AL
2016-08-18 256-746-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AL 6804 HUNTSVILLE AL
2016-08-18 256-746-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AL 6804 HUNTSVILLE AL
2016-08-18 256-755-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AL 6804 HUNTSVILLE AL
2016-08-16 256-367-4XXX 4000–4999Assigned COMCAST IP PHONE, LLC 318J FLORENCE AL
2016-08-09 256-885-6XXX 6000–6999Assigned MCC TELEPHONY LLC 593K HUNTSVILLE AL
2016-08-08 256-208-5XXX 5000–5999Assigned BANDWIDTH.COM CLEC, LLC - AL 072F SYLACAUGA AL
2016-07-29 256-804-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 HAZELGREEN AL
2016-07-27 256-800-8XXX 8000–8999Assigned AT&T ENTERPRISES, LLC 516C ATHENS AL
2016-07-25 256-947-5XXX 5000–5999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - AL 7469 HUNTSVILLE AL
2016-07-20 256-800-0XXX 0000–0999Assigned POWERTEL BIRMINGHAM LICENSES, INC. 7475 ATHENS AL
2016-07-20 256-800-9XXX 9000–9999Assigned POWERTEL BIRMINGHAM LICENSES, INC. 7475 ATHENS AL
2016-07-19 256-592-3XXX 3000–3999Assigned BANDWIDTH.COM CLEC, LLC - AL 072F TALLADEGA AL
2016-07-05 256-847-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AL 6804 ANNISTON AL
2016-07-05 256-947-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AL 6804 HUNTSVILLE AL
2016-07-05 256-947-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AL 6804 HUNTSVILLE AL
2016-06-30 256-290-5XXX 5000–5999Assigned ONVOY, LLC - AL 604E MOULTON AL
2016-06-30 256-290-7XXX 7000–7999Assigned ONVOY, LLC - AL 604E MOULTON AL
2016-06-30 256-291-3XXX 3000–3999Assigned ONVOY, LLC - AL 604E RUSSELLVL AL
2016-06-30 256-291-4XXX 4000–4999Assigned ONVOY, LLC - AL 604E RUSSELLVL AL
2016-06-30 256-578-7XXX 7000–7999Assigned ONVOY, LLC - AL 604E RED BAY AL
2016-06-30 256-578-8XXX 8000–8999Assigned ONVOY, LLC - AL 604E RED BAY AL
2016-06-30 256-578-9XXX 9000–9999Assigned ONVOY, LLC - AL 604E RED BAY AL
2016-06-30 256-602-2XXX 2000–2999Assigned ONVOY, LLC - AL 604E TOWN CREEK AL
2016-06-30 256-602-3XXX 3000–3999Assigned ONVOY, LLC - AL 604E TOWN CREEK AL
2016-06-30 256-661-3XXX 3000–3999Assigned ONVOY, LLC - AL 604E LEIGHTON AL
2016-06-30 256-661-5XXX 5000–5999Assigned ONVOY, LLC - AL 604E LEIGHTON AL
2016-06-30 256-664-7XXX 7000–7999Assigned ONVOY, LLC - AL 604E KILLEN AL
2016-06-30 256-664-8XXX 8000–8999Assigned ONVOY, LLC - AL 604E KILLEN AL

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.