NumberResearch Membership · Data 09/19/2026

Recent prefix assignments

0 prefixes assigned in the last 30 days · from the daily NANPA CO code file, 09/19/2026

Full prefixes (NXX) Thousands-blocks (1,000-number pools)

The Code holder is who opened each NPA-NXX prefix — not necessarily who holds the numbers. A prefix is 10,000 numbers, but under pooling its ten 1,000-number blocks are handed out individually, often to different carriers; the code holder may hold only one block, or none. The Thousands-blocks column shows how the ten blocks are really split — click which blocks → to see who holds each 1,000-number block and its last-4-digit range. Assignments are initial assignments; the current serving carrier may differ due to portability.

Most active assignees, all time — NPA 864
BELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL 175
CELLCO PARTNERSHIP DBA VERIZON WIRELESS - SC 95
PAETEC ITEL, LLC 78
NEW CINGULAR WIRELESS PCS, LLC - GA 70
SUNCOM DBA T-MOBILE USA 63
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 NPA-NXX prefix assignments
AssignedNPA-NXXThousands-blocks taken (last-4 opening)Code holderOCNRate centerState
2021-02-03 864-776 0–9 XXXall 10 · 5 holders which blocks → ONVOY, LLC - SC 548E SENECA SC
2021-01-13 864-695 0–9 XXXall 10 · 3 holders which blocks → TELEPORT COMMUNICATIONS AMERICA SC- LLC 635C GREENVILLE SC
2021-01-06 864-691 0–9 XXXall 10 · 4 holders which blocks → ONVOY, LLC - SC 548E LYMAN SC
2021-01-06 864-692 0–9 XXXall 10 · 4 holders which blocks → ONVOY, LLC - SC 548E FOUNTANINN SC
2021-01-06 864-693 0XXX1XXX2XXX3XXX6XXX7XXX8XXX · 4 holders which blocks → ONVOY, LLC - SC 548E CLINTON SC
2021-01-06 864-694 0XXX1XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 3 holders which blocks → ONVOY, LLC - SC 548E PACOLET SC
2021-01-06 864-737 0–9 XXXall 10 · 6 holders which blocks → ONVOY, LLC - SC 548E BLACKSBURG SC
2021-01-06 864-738 3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 2 holders which blocks → ONVOY, LLC - SC 548E JONESVILLE SC
2021-01-06 864-739 0XXX1XXX5XXX6XXX7XXX8XXX9XXX · 4 holders which blocks → ONVOY, LLC - SC 548E COWPENS SC
2021-01-06 864-750 1XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 3 holders which blocks → ONVOY, LLC - SC 548E SALEM SC
2021-01-06 864-780 0–9 XXXall 10 · 4 holders which blocks → ONVOY, LLC - SC 548E CLEMSON SC
2021-01-06 864-818 0XXX1XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 2 holders which blocks → ONVOY, LLC - SC 548E TRAVESREST SC
2020-12-23 864-767 0XXX1XXX2XXX3XXX4XXX6XXX7XXX8XXX · 6 holders which blocks → ONVOY, LLC - SC 548E ANTIOCH SC
2020-12-16 864-519 0XXX1XXX2XXX3XXX4XXX6XXX7XXX8XXX9XXX · 4 holders which blocks → BANDWIDTH.COM CLEC, LLC - SC 077F CALHOUNFLS SC
2020-12-15 864-495 0–9 XXXall 10 · 2 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC - GA 6214 GREENWOOD SC
2020-12-14 864-690 0–9 XXXall 10 · 7 holders which blocks → METROPCS, INC. 5562 EASLEY SC
2020-09-29 864-686 0–9 XXXall 10 · 4 holders which blocks → IP HORIZON LLC 515J GREENVILLE SC
2020-08-26 864-685 0–9 XXXall 10 · 3 holders which blocks → SUNCOM DBA T-MOBILE USA 8645 ANDERSON SC
2020-08-21 864-413 0–9 XXXall 10 · 3 holders which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - SC 6398 GREENWOOD SC
2020-08-14 864-794 0–9 XXXall 10 · 3 holders which blocks → TWILIO INTERNATIONAL, INC. 506J GREENVILLE SC
2020-08-05 864-658 0–9 XXXall 10 · 4 holders which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - SC 6398 SPARTANBG SC
2020-07-22 864-652 0–9 XXXall 10 · 3 holders which blocks → CSC WIRELESS, LLC 425J GREENVILLE SC
2020-07-06 864-894 0–9 XXXall 10 · 4 holders which blocks → ONVOY, LLC - SC 548E SIMPSONVL SC
2020-06-26 864-664 0XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 2 holders which blocks → ONVOY, LLC - SC 548E HONEA PATH SC
2020-06-26 864-863 0–9 XXXall 10 · 5 holders which blocks → ONVOY, LLC - SC 548E GAFFNEY SC
2020-06-22 864-589 0–9 XXXall 10 · 5 holders which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - SC 6398 UNION SC
2020-06-16 864-584 0–9 XXXall 10 · 5 holders which blocks → HD CARRIER LLC 321J GREENVILLE SC
2020-05-07 864-786 0XXX1XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 6 holders which blocks → FRACTEL, LLC 965H WILLIAMSTN SC
2020-05-07 864-842 0–9 XXXall 10 · 7 holders which blocks → FRACTEL, LLC 965H WESTMINSTR SC
2020-05-04 864-581 0–9 XXXall 10 · 5 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC - GA 6214 ANDERSON SC
2020-03-13 864-572 0–9 XXXall 10 · 4 holders which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - SC 6398 SPARTANBG SC
2020-02-26 864-566 0–9 XXXall 10 · 3 holders which blocks → MCIMETRO ACCESS TRANSMISSION SERVICES LLC - SC 8534 GREENVILLE SC
2020-02-24 864-588 0XXX1XXX2XXX3XXX5XXX6XXX7XXX8XXX9XXX · 6 holders which blocks → FRACTEL, LLC 965H JOANNA SC
2020-02-04 864-854 0–9 XXXall 10 · 3 holders which blocks → ONVOY, LLC - SC 548E GREENWOOD SC
2019-10-10 864-755 1XXX3XXX4XXX5XXX6XXX7XXX · 4 holders which blocks → FRACTEL, LLC 965H CHAPPELLS SC
2019-10-10 864-788 0–9 XXXall 10 · 5 holders which blocks → FRACTEL, LLC 965H CENTRAL SC
2019-08-27 864-549 0–9 XXXall 10 · 6 holders which blocks → EXIANT COMMUNICATIONS LLC 114J GREENVILLE SC
2019-06-20 864-544 0XXX2XXX4XXX5XXX · 4 holders which blocks → CHARTER IP ENABLED SERVICES, LLC 792K LOCKHART SC
2019-03-29 864-773 1XXX2XXX3XXX4XXX5XXX7XXX · 5 holders which blocks → SOUTH CAROLINA NET, INC. - SC 1784 TROY SC
2019-02-20 864-666 0–9 XXXall 10 · 3 holders which blocks → TERRA NOVA TELECOM INC. 145J GREENVILLE SC
2019-01-16 864-535 0–9 XXXall 10 · 4 holders which blocks → METROPCS, INC. 5562 GREENVILLE SC
2018-10-22 864-537 0–9 XXXwhole prefix which blocks → MCIMETRO ACCESS TRANSMISSION SERVICES LLC - SC 8534 GREENVILLE SC
2018-09-04 864-533 0–9 XXXall 10 · 3 holders which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - SC 6398 CLEMSON SC
2018-08-30 864-883 0–9 XXXall 10 · 6 holders which blocks → SOUTH CAROLINA NET, INC. - SC 1784 ANDERSON SC
2018-08-29 864-532 0–9 XXXall 10 · 3 holders which blocks → ONVOY, LLC - SC 548E ANDERSON SC
2018-08-29 864-564 0–9 XXXall 10 · 4 holders which blocks → ONVOY, LLC - SC 548E SPARTANBG SC
2018-08-29 864-635 0–9 XXXall 10 · 3 holders which blocks → ONVOY, LLC - SC 548E CLEMSON SC
2018-08-29 864-668 0–9 XXXall 10 · 3 holders which blocks → ONVOY, LLC - SC 548E PICKENS SC
2018-08-29 864-860 0XXX1XXX2XXX3XXX5XXX6XXX7XXX8XXX9XXX · 4 holders which blocks → ONVOY, LLC - SC 548E BELTON SC
2018-08-29 864-866 0XXX1XXX2XXX3XXX4XXX6XXX7XXX8XXX · 4 holders which blocks → ONVOY, LLC - SC 548E LIBERTY SC

Source: NANPA CO Code Assignments (Utilized, All States, Public), file date 09/19/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.