NumberResearch Membership · Data 09/19/2026

Recent prefix assignments

1 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, last 30 days — NPA 803
HD CARRIER 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
Clear Download CSV ↓
Recent NPA-NXX prefix assignments
AssignedNPA-NXXThousands-blocks taken (last-4 opening)Code holderOCNRate centerState
2026-09-11 803-890 8XXX9XXX which blocks → HD CARRIER LLC 321J ORANGEBURG SC
2026-04-20 803-304 0–9 XXXwhole prefix which blocks → NEW CINGULAR WIRELESS PCS, LLC - GA 6214 CHESTER SC
2023-08-22 803-204 0–9 XXXwhole prefix which blocks → NEW CINGULAR WIRELESS PCS, LLC - GA 6214 NEWBERRY SC
2023-07-27 803-864 0XXX1XXX2XXX3XXX4XXX9XXX · 5 holders which blocks → ONVOY, LLC - SC 548E SRNGFLSLLY SC
2023-07-27 803-990 0–9 XXXall 10 · 2 holders which blocks → ONVOY, LLC - SC 548E ORANGEBURG SC
2023-07-25 803-706 0XXX1XXX6XXX9XXX · 3 holders which blocks → AT&T - LOCAL 7421 EASTOVER SC
2023-07-21 803-301 0–9 XXXwhole prefix which blocks → NEW CINGULAR WIRELESS PCS, LLC - GA 6214 BARNWELL SC
2023-06-15 803-843 0–9 XXXall 10 · 4 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC - GA 6214 NEWELLENTN SC
2023-06-13 803-303 0–9 XXXall 10 · 6 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC - GA 6214 BATESBURG SC
2023-06-13 803-839 0–9 XXXall 10 · 2 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC - GA 6214 NEWBERRY SC
2023-05-23 803-803 0–9 XXXwhole prefix which blocks → ONVOY SPECTRUM, LLC 624H COLUMBIA SC
2022-07-28 803-715 0–9 XXXall 10 · 2 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC - GA 6214 ORANGEBURG SC
2021-12-14 803-969 0XXX1XXX2XXX3XXX4XXX7XXX8XXX9XXX · 5 holders which blocks → BANDWIDTH.COM CLEC, LLC - SC 077F ALLENDALE SC
2021-04-02 803-986 0–9 XXXall 10 · 7 holders which blocks → TELNYX LLC 073H CHPNLTLMTS SC
2021-03-17 803-982 0–9 XXXall 10 · 3 holders which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - SC 6398 YORK SC
2021-03-08 803-970 0–9 XXXall 10 · 4 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC - GA 6214 ROCK HILL SC
2021-02-01 803-963 0–9 XXXall 10 · 3 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC - GA 6214 BARNWELL SC
2021-02-01 803-967 0–9 XXXall 10 · 2 holders which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - SC 6398 AIKEN SC
2021-01-25 803-964 0–9 XXXall 10 · 4 holders which blocks → COMCAST IP PHONE, LLC 318J HAMPTON SC
2021-01-06 803-930 0–9 XXXall 10 · 4 holders which blocks → ONVOY, LLC - SC 548E CHPNLTLMTS SC
2020-12-23 803-965 0–9 XXXall 10 · 5 holders which blocks → ONVOY, LLC - SC 548E CLOVER SC
2020-12-09 803-961 0–9 XXXall 10 · 3 holders which blocks → POWERTEL ATLANTA LICENSES, INC. 7473 AIKEN SC
2020-09-24 803-949 0–9 XXXall 10 · 4 holders which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - SC 6398 COLUMBIA SC
2020-09-21 803-946 0–9 XXXall 10 · 2 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC - GA 6214 BARNWELL SC
2020-09-15 803-923 0–9 XXXall 10 · 5 holders which blocks → IP HORIZON LLC 515J COLUMBIA SC
2020-07-23 803-919 0–9 XXXall 10 · 6 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC - GA 6214 SUMTER SC
2020-07-22 803-769 0–9 XXXall 10 · 5 holders which blocks → CSC WIRELESS, LLC 425J COLUMBIA SC
2020-04-08 803-558 0–9 XXXall 10 · 5 holders which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - SC 6398 ROCK HILL SC
2020-03-27 803-966 0–9 XXXall 10 · 2 holders which blocks → FRACTEL, LLC 965H COLUMBIA SC
2020-02-10 803-918 0–9 XXXall 10 · 3 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC - GA 6214 BARNWELL SC
2019-10-02 803-889 0–9 XXXall 10 · 3 holders which blocks → ONVOY, LLC - SC 548E LK WYLIE W SC
2019-10-02 803-891 0–9 XXXall 10 · 4 holders which blocks → ONVOY, LLC - SC 548E SHARON SC
2019-10-02 803-902 0–9 XXXall 10 · 4 holders which blocks → ONVOY, LLC - SC 548E YORK SC
2019-10-02 803-910 0XXX1XXX2XXX4XXX5XXX6XXX8XXX9XXX · 4 holders which blocks → ONVOY, LLC - SC 548E BOWMAN SC
2019-10-02 803-916 0XXX1XXX2XXX4XXX5XXX6XXX7XXX8XXX9XXX · 4 holders which blocks → ONVOY, LLC - SC 548E BRANCHVL SC
2019-10-01 803-887 0–9 XXXall 10 · 2 holders which blocks → ONVOY, LLC - SC 548E LAKE WYLIE SC
2019-09-05 803-882 0–9 XXXall 10 · 5 holders which blocks → PEERLESS NETWORK OF SOUTH CAROLINA, LLC - SC 098H PROSPERITY SC
2019-09-05 803-884 0XXX1XXX2XXX3XXX4XXX5XXX7XXX8XXX9XXX · 3 holders which blocks → PEERLESS NETWORK OF SOUTH CAROLINA, LLC - SC 098H BLACKVILLE SC
2019-09-05 803-886 0–9 XXXall 10 · 4 holders which blocks → PEERLESS NETWORK OF SOUTH CAROLINA, LLC - SC 098H SRNGFLSLLY SC
2019-06-24 803-879 0–9 XXXall 10 · 5 holders which blocks → TELEPORT COMMUNICATIONS AMERICA SC- LLC 635C CLOVER SC
2019-03-29 803-922 0–9 XXXall 10 · 3 holders which blocks → TERRA NOVA TELECOM INC. 145J COLUMBIA SC
2019-03-25 803-598 0XXX1XXX2XXX3XXX4XXX5XXX7XXX8XXX9XXX · 2 holders which blocks → BANDWIDTH.COM CLEC, LLC - SC 077F ELLOREE SC
2018-11-28 803-876 0–9 XXXall 10 · 3 holders which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - SC 6398 COLUMBIA SC
2018-10-19 803-921 0XXX1XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 2 holders which blocks → ONVOY, LLC - SC 548E EUTAWVILLE SC
2018-09-26 803-871 0XXX1XXX2XXX3XXX4XXX9XXX · 3 holders which blocks → BANDWIDTH.COM CLEC, LLC - SC 077F SUMMERTON SC
2018-09-20 803-868 0–9 XXXall 10 · 4 holders which blocks → PALMETTO TELEPHONE COMMUNICATIONS, LLC - SC 154C BARNWELL SC
2018-08-20 803-866 0–9 XXXall 10 · 2 holders which blocks → ONVOY, LLC - SC 548E OLAR SC
2018-07-03 803-836 0–9 XXXall 10 · 4 holders which blocks → BANDWIDTH.COM CLEC, LLC - SC 077F HICKORYGRV SC
2018-07-03 803-846 0–9 XXXall 10 · 2 holders which blocks → METROPCS, INC. 5562 COLUMBIA SC
2018-07-03 803-861 0–9 XXXwhole prefix which blocks → NUSO, LLC 551G COLUMBIA 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.