NumberResearch Membership · Data 09/20/2026

Recent thousands-block assignments

5 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 321
ONVOY, LLC - FL 5
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
2006-09-15 321-289-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 TITUSVILLE FL
2006-09-15 321-704-6XXX 6000–6999Assigned OMNIPOINT MIAMI E LICENSE, LLC 6889 COCOA FL
2006-09-15 321-704-7XXX 7000–7999Assigned OMNIPOINT MIAMI E LICENSE, LLC 6889 COCOA FL
2006-09-13 321-283-5XXX 5000–5999Assigned MCI WORLDCOM COMMUNICATIONS, INC. - FL 7448 SANFORD FL
2006-09-13 321-474-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - FL 6502 COCOA FL
2006-09-13 321-474-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - FL 6502 COCOA FL
2006-08-31 321-682-0XXX 0000–0999Assigned METROPCS NETWORKS, LLC 899D KISSIMMEE FL
2006-08-31 321-682-1XXX 1000–1999Assigned METROPCS NETWORKS, LLC 899D KISSIMMEE FL
2006-08-31 321-682-8XXX 8000–8999Assigned METROPCS NETWORKS, LLC 899D KISSIMMEE FL
2006-08-31 321-682-9XXX 9000–9999Assigned METROPCS NETWORKS, LLC 899D KISSIMMEE FL
2006-08-31 321-746-0XXX 0000–0999Assigned METROPCS NETWORKS, LLC 899D KISSIMMEE FL
2006-08-31 321-746-9XXX 9000–9999Assigned METROPCS NETWORKS, LLC 899D KISSIMMEE FL
2006-08-31 321-805-0XXX 0000–0999Assigned METROPCS NETWORKS, LLC 899D ST CLOUD FL
2006-08-31 321-805-1XXX 1000–1999Assigned METROPCS NETWORKS, LLC 899D ST CLOUD FL
2006-08-31 321-805-9XXX 9000–9999Assigned METROPCS NETWORKS, LLC 899D ST CLOUD FL
2006-08-31 321-895-0XXX 0000–0999Assigned METROPCS NETWORKS, LLC 899D ST CLOUD FL
2006-08-31 321-895-8XXX 8000–8999Assigned METROPCS NETWORKS, LLC 899D ST CLOUD FL
2006-08-29 321-348-9XXX 9000–9999Assigned LEVEL 3 COMMUNICATIONS, LLC - FL 4802 OVIEDO FL
2006-08-24 321-368-4XXX 4000–4999Assigned OMNIPOINT MIAMI E LICENSE, LLC 6889 COCOA FL
2006-08-24 321-368-5XXX 5000–5999Assigned OMNIPOINT MIAMI E LICENSE, LLC 6889 COCOA FL
2006-08-22 321-249-4XXX 4000–4999Assigned BELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL 9417 SANFORD FL
2006-08-15 321-442-4XXX 4000–4999Assigned METROPCS NETWORKS, LLC 899D KISSIMMEE FL
2006-08-15 321-442-5XXX 5000–5999Assigned METROPCS NETWORKS, LLC 899D KISSIMMEE FL
2006-08-15 321-442-6XXX 6000–6999Assigned METROPCS NETWORKS, LLC 899D KISSIMMEE FL
2006-08-15 321-442-7XXX 7000–7999Assigned METROPCS NETWORKS, LLC 899D KISSIMMEE FL
2006-08-15 321-697-2XXX 2000–2999Assigned METROPCS NETWORKS, LLC 899D KISSIMMEE FL
2006-08-14 321-422-7XXX 7000–7999Assigned PAETEC ITEL, LLC 829J WINTERPARK FL
2006-08-08 321-474-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - FL 6502 COCOA FL
2006-08-08 321-474-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - FL 6502 COCOA FL
2006-08-07 321-594-9XXX 9000–9999Assigned METROPCS NETWORKS, LLC 899D WINTERPARK FL
2006-07-25 321-368-7XXX 7000–7999Assigned OMNIPOINT MIAMI E LICENSE, LLC 6889 COCOA FL
2006-07-25 321-368-8XXX 8000–8999Assigned OMNIPOINT MIAMI E LICENSE, LLC 6889 COCOA FL
2006-07-25 321-750-6XXX 6000–6999Assigned OMNIPOINT MIAMI E LICENSE, LLC 6889 COCOA FL
2006-07-18 321-262-2XXX 2000–2999Assigned METROPCS NETWORKS, LLC 899D SANFORD FL
2006-07-18 321-262-4XXX 4000–4999Assigned METROPCS NETWORKS, LLC 899D SANFORD FL
2006-07-18 321-275-4XXX 4000–4999Assigned MCI WORLDCOM COMMUNICATIONS, INC. - FL 7448 SANFORD FL
2006-07-18 321-275-5XXX 5000–5999Assigned MCI WORLDCOM COMMUNICATIONS, INC. - FL 7448 SANFORD FL
2006-07-18 321-296-6XXX 6000–6999Assigned MCI WORLDCOM COMMUNICATIONS, INC. - FL 7448 OVIEDO FL
2006-07-18 321-296-7XXX 7000–7999Assigned MCI WORLDCOM COMMUNICATIONS, INC. - FL 7448 OVIEDO FL
2006-07-14 321-594-0XXX 0000–0999Assigned METROPCS NETWORKS, LLC 899D WINTERPARK FL
2006-07-06 321-704-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - FL 6502 COCOA FL
2006-06-22 321-250-7XXX 7000–7999Assigned MCI WORLDCOM COMMUNICATIONS, INC. - FL 7448 KISSIMMEE FL
2006-06-22 321-250-8XXX 8000–8999Assigned MCI WORLDCOM COMMUNICATIONS, INC. - FL 7448 KISSIMMEE FL
2006-06-22 321-697-7XXX 7000–7999Assigned MCI WORLDCOM COMMUNICATIONS, INC. - FL 7448 KISSIMMEE FL
2006-06-15 321-332-9XXX 9000–9999Assigned MCI WORLDCOM COMMUNICATIONS, INC. - FL 7448 ORLANDO FL
2006-06-15 321-474-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - FL 6502 COCOA FL
2006-06-12 321-609-0XXX 0000–0999Assigned OMNIPOINT MIAMI E LICENSE, LLC 6889 COCOA FL
2006-06-05 321-422-3XXX 3000–3999Assigned LEVEL 3 COMMUNICATIONS, LLC - FL 4802 WINTERPARK FL
2006-05-22 321-474-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - FL 6502 COCOA FL
2006-04-25 321-329-7XXX 7000–7999Assigned SMART CITY SOLUTIONS II, LLC DBA SMART CITY METRO 8105 REEDYCREEK FL

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.