NumberResearch Membership · Data 09/20/2026

Recent prefix assignments

0 prefixes assigned in the last 30 days · from the daily NANPA CO code file, 09/20/2026

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 843
BELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL 143
CELLCO PARTNERSHIP DBA VERIZON WIRELESS - SC 103
SUNCOM DBA T-MOBILE USA 65
PAETEC ITEL, LLC 58
FRONTIER COMMUNICATIONS OF THE CAROLINAS INC. - SC 57
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
2024-07-03 843-980 0–9 XXXwhole prefix which blocks → NEW CINGULAR WIRELESS PCS, LLC - GA 6214 HILTONHEAD SC
2023-11-13 843-803 1XXX which blocks → TWC IP ENABLED SERVICES, LLC 793K LEBANON SC
2023-10-12 843-854 0–9 XXXwhole prefix which blocks → NEW CINGULAR WIRELESS PCS, LLC - GA 6214 HILTONHEAD SC
2023-06-13 843-704 0–9 XXXall 10 · 3 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC - GA 6214 MONCKS COR SC
2023-05-23 843-843 0–9 XXXwhole prefix which blocks → ONVOY SPECTRUM, LLC 624H CHARLESTON SC
2022-11-08 843-585 0–9 XXXall 10 · 3 holders which blocks → BANDWIDTH.COM CLEC, LLC - SC 077F HEMINGWAY SC
2022-04-20 843-220 0XXX1XXX2XXX4XXX8XXX9XXX · 3 holders which blocks → SUNCOM DBA T-MOBILE USA 8645 EASTCONWAY SC
2022-04-19 843-533 0–9 XXXall 10 · 2 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC - GA 6214 HILTONHEAD SC
2022-03-30 843-955 0–9 XXXall 10 · 4 holders which blocks → PAETEC ITEL, LLC 829J CHARLESTON SC
2019-09-05 843-994 0–9 XXXall 10 · 2 holders which blocks → PEERLESS NETWORK OF SOUTH CAROLINA, LLC - SC 098H ISLE PALMS SC
2019-06-24 843-984 0–9 XXXall 10 · 6 holders which blocks → PEERLESS NETWORK OF SOUTH CAROLINA, LLC - SC 098H MTPLEASANT SC
2019-05-03 843-983 0–9 XXXall 10 · 4 holders which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - SC 6398 ANDREWS SC
2019-04-30 843-738 0–9 XXXall 10 · 4 holders which blocks → BANDWIDTH.COM CLEC, LLC - SC 077F CLIO SC
2018-11-28 843-981 0–9 XXXall 10 · 4 holders which blocks → VONAGE AMERICA LLC 197D MTPLEASANT SC
2018-11-01 843-969 0XXX2XXX4XXX5XXX6XXX7XXX8XXX9XXX · 3 holders which blocks → PEERLESS NETWORK OF SOUTH CAROLINA, LLC - SC 098H SULLIVNSIS SC
2018-10-05 843-977 0–9 XXXall 10 · 2 holders which blocks → ONVOY, LLC - SC 548E NICHOLS SC
2018-10-03 843-960 0–9 XXXall 10 · 2 holders which blocks → ONVOY, LLC - SC 548E MCCOLL SC
2018-10-03 843-962 0–9 XXXall 10 · 3 holders which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - SC 6398 BEAUFORT SC
2018-10-03 843-966 0–9 XXXall 10 · 2 holders which blocks → ONVOY, LLC - SC 548E SOCIETY HL SC
2018-09-28 843-897 0XXX1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX · 3 holders which blocks → ONVOY, LLC - SC 548E BENNETTSVL SC
2018-09-28 843-932 0–9 XXXall 10 · 3 holders which blocks → ONVOY, LLC - SC 548E GEORGETOWN SC
2018-09-28 843-938 0–9 XXXall 10 · 2 holders which blocks → ONVOY, LLC - SC 548E HARTSVILLE SC
2018-09-20 843-905 0XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 2 holders which blocks → ONVOY, LLC - SC 548E PAMPLICO SC
2018-08-14 843-896 0–9 XXXall 10 · 4 holders which blocks → BANDWIDTH.COM CLEC, LLC - SC 077F HEMINGWAY SC
2018-08-08 843-985 0–9 XXXwhole prefix which blocks → BELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL 9417 CHARLESTON SC
2018-06-14 843-942 0–9 XXXall 10 · 7 holders which blocks → VONAGE AMERICA LLC 197D FLORENCE SC
2018-04-26 843-892 0–9 XXXall 10 · 5 holders which blocks → BANDWIDTH.COM CLEC, LLC - SC 077F ROWLAND SC
2018-04-19 843-891 0–9 XXXall 10 · 3 holders which blocks → BANDWIDTH.COM CLEC, LLC - SC 077F LAUREL BAY SC
2018-04-12 843-895 0–9 XXXall 10 · 3 holders which blocks → SOUTH CAROLINA TELECOMM GRP HOLDINGS, LLC - SC 527H HILTONHEAD SC
2018-03-22 843-829 0–9 XXXall 10 · 4 holders which blocks → BANDWIDTH.COM CLEC, LLC - SC 077F NEWTONVL SC
2018-03-22 843-894 0–9 XXXall 10 · 4 holders which blocks → BANDWIDTH.COM CLEC, LLC - SC 077F PAWLEYS IS SC
2018-03-20 843-823 0–9 XXXall 10 · 3 holders which blocks → VONAGE AMERICA LLC 197D CHARLESTON SC
2018-02-01 843-809 0–9 XXXall 10 · 6 holders which blocks → SOUTH CAROLINA NET, INC. - SC 1784 MONCKS COR SC
2018-02-01 843-927 0XXX1XXX2XXX3XXX6XXX8XXX9XXX · 5 holders which blocks → SOUTH CAROLINA NET, INC. - SC 1784 CHESTERFLD SC
2018-01-31 843-739 0XXX1XXX2XXX3XXX5XXX6XXX7XXX8XXX9XXX · 4 holders which blocks → SOUTH CAROLINA NET, INC. - SC 1784 NWALTERBOR SC
2018-01-26 843-919 0–9 XXXall 10 · 3 holders which blocks → SOUTH CAROLINA NET, INC. - SC 1784 TIMMONSVL SC
2018-01-19 843-988 1XXX8XXX · 2 holders which blocks → SOUTH CAROLINA NET, INC. - SC 1784 HARLEYVL SC
2017-12-18 843-780 0–9 XXXall 10 · 2 holders which blocks → TELEPORT COMMUNICATIONS AMERICA SC- LLC 635C MYRTLE BCH SC
2017-11-21 843-791 0XXX1XXX2XXX7XXX · 2 holders which blocks → SOUTH CAROLINA NET, INC. - SC 1784 RUBY SC
2017-11-21 843-840 0XXX5XXX8XXX · 3 holders which blocks → SOUTH CAROLINA NET, INC. - SC 1784 HUGER SC
2017-11-21 843-943 1XXX3XXX5XXX · 3 holders which blocks → SOUTH CAROLINA NET, INC. - SC 1784 LODGE SC
2017-11-21 843-967 1XXX3XXX5XXX · 3 holders which blocks → SOUTH CAROLINA NET, INC. - SC 1784 SWALTERBOR SC
2017-11-21 843-978 0XXX1XXX2XXX6XXX7XXX · 3 holders which blocks → SOUTH CAROLINA NET, INC. - SC 1784 JEFFERSON SC
2017-11-16 843-935 not yet reported which blocks → SOUTH CAROLINA NET, INC. - SC 1784 HENDERSNVL SC
2017-10-12 843-690 not yet reported which blocks → SANDHILL CONNEXTIONS, LLC - SC 067J CHERAW SC
2017-10-11 843-993 not yet reported which blocks → SOUTH CAROLINA TELECOMM GRP HOLDINGS, LLC - SC 527H LANE SC
2017-08-03 843-867 0–9 XXXall 10 · 6 holders which blocks → COMMIO, LLC 939H CHARLESTON SC
2017-06-08 843-653 0–9 XXXall 10 · 2 holders which blocks → SUNCOM DBA T-MOBILE USA 8645 EASTCONWAY SC
2017-04-24 843-666 0–9 XXXall 10 · 4 holders which blocks → ONVOY, LLC - SC 548E CHARLESTON SC
2017-04-05 843-594 0–9 XXXall 10 · 5 holders which blocks → TELEPORT COMMUNICATIONS AMERICA SC- LLC 635C SUMMERVL SC

Source: NANPA CO Code Assignments (Utilized, All States, Public), file date 09/20/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.