NumberResearch Membership · Data 09/20/2026

Recent prefix assignments

2 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, last 30 days — NPA 854
WIDE VOICE, LLC - SC 1
ONVOY, LLC - SC 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 NPA-NXX prefix assignments
AssignedNPA-NXXThousands-blocks taken (last-4 opening)Code holderOCNRate centerState
2022-01-13 854-663 0XXX1XXX3XXX6XXX7XXX8XXX9XXX · 6 holders which blocks → TON80 COMMUNICATIONS, LLC 516J PINEVILLE SC
2022-01-12 854-232 0–9 XXXwhole prefix which blocks → NEW CINGULAR WIRELESS PCS, LLC - GA 6214 HILTONHEAD SC
2022-01-07 854-768 0XXX1XXX3XXX6XXX7XXX8XXX · 6 holders which blocks → TON80 COMMUNICATIONS, LLC 516J EDISTO IS SC
2021-12-22 854-229 0XXX1XXX2XXX3XXX4XXX9XXX · 3 holders which blocks → BANDWIDTH.COM CLEC, LLC - SC 077F WALTERBORO SC
2021-12-22 854-231 0XXX1XXX2XXX3XXX4XXX6XXX7XXX8XXX9XXX · 4 holders which blocks → BANDWIDTH.COM CLEC, LLC - SC 077F LAUREL BAY SC
2021-12-21 854-226 0–9 XXXall 10 · 2 holders which blocks → BANDWIDTH.COM CLEC, LLC - SC 077F HOLLYWOOD SC
2021-11-16 854-225 0–9 XXXall 10 · 5 holders which blocks → BANDWIDTH.COM CLEC, LLC - SC 077F ST GEORGE SC
2021-10-15 854-803 0XXX1XXX2XXX3XXX4XXX7XXX8XXX9XXX · 6 holders which blocks → ONVOY SPECTRUM, LLC 624H FOLLYBEACH SC
2021-10-15 854-839 0XXX1XXX6XXX7XXX8XXX9XXX · 4 holders which blocks → ONVOY SPECTRUM, LLC 624H SULLIVNSIS SC
2021-10-15 854-864 0XXX1XXX2XXX7XXX8XXX · 4 holders which blocks → ONVOY SPECTRUM, LLC 624H ISLE PALMS SC
2021-10-15 854-910 0XXX1XXX2XXX6XXX7XXX8XXX · 4 holders which blocks → ONVOY SPECTRUM, LLC 624H YEMASSEE SC
2021-09-14 854-215 0XXX2XXX3XXX which blocks → ONVOY, LLC - SC 548E BETHUNE SC
2021-09-14 854-224 0XXX1XXX2XXX3XXX4XXX · 3 holders which blocks → ONVOY, LLC - SC 548E MCBEE SC
2021-09-10 854-455 0XXX1XXX2XXX5XXX7XXX8XXX9XXX · 4 holders which blocks → SKYE TELECOM LLC DBA SKYETEL 622J FLORENCE SC
2021-09-10 854-588 0–9 XXXall 10 · 6 holders which blocks → SKYE TELECOM LLC DBA SKYETEL 622J MYRTLE BCH SC
2021-09-10 854-844 0–9 XXXall 10 · 2 holders which blocks → SKYE TELECOM LLC DBA SKYETEL 622J CHARLESTON SC
2021-08-27 854-210 0–9 XXXwhole prefix which blocks → POWERTEL ATLANTA LICENSES, INC. 7473 BEAUFORT SC
2021-08-18 854-209 0XXX1XXX2XXX3XXX4XXX5XXX9XXX · 4 holders which blocks → BERKELEY CABLE TELEVISION INC DBA HOME TELECOM-SC 712C MCLELLANVL SC
2021-05-26 854-223 0–9 XXXall 10 · 5 holders which blocks → VONAGE AMERICA LLC 197D PAWLEYS IS SC
2021-05-17 854-221 0–9 XXXall 10 · 5 holders which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - SC 6398 DILLON SC
2021-04-17 854-219 0–9 XXXall 10 · 2 holders which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - SC 6398 MONCKS COR SC
2021-04-14 854-902 0–9 XXXall 10 · 2 holders which blocks → ONVOY SPECTRUM, LLC 624H CHARLESTON SC
2021-04-14 854-903 0XXX4XXX5XXX6XXX7XXX8XXX9XXX · 3 holders which blocks → ONVOY SPECTRUM, LLC 624H FLORENCE SC
2021-04-07 854-837 0–9 XXXall 10 · 5 holders which blocks → TON80 COMMUNICATIONS, LLC 516J MTPLEASANT SC
2021-03-19 854-901 0–9 XXXall 10 · 2 holders which blocks → ONVOY SPECTRUM, LLC 624H MYRTLE BCH SC
2021-03-17 854-217 0–9 XXXall 10 · 4 holders which blocks → STRATUS NETWORKS 495J SUMMERVL SC
2021-02-03 854-855 0–9 XXXall 10 · 3 holders which blocks → ONVOY, LLC - SC 548E GEORGETOWN SC
2021-02-03 854-858 0–9 XXXall 10 · 4 holders which blocks → ONVOY, LLC - SC 548E MTPLEASANT SC
2021-01-06 854-228 0–9 XXXall 10 · 2 holders which blocks → ONVOY, LLC - SC 548E CHERAW SC
2021-01-06 854-230 0XXX1XXX2XXX3XXX4XXX8XXX · 3 holders which blocks → ONVOY, LLC - SC 548E OLANTA SC
2021-01-06 854-242 2XXX3XXX4XXX5XXX8XXX9XXX · 3 holders which blocks → ONVOY, LLC - SC 548E KINGSTREE SC
2021-01-06 854-254 0–9 XXXall 10 · 4 holders which blocks → ONVOY, LLC - SC 548E WALTERBORO SC
2021-01-06 854-504 0–9 XXXall 10 · 2 holders which blocks → ONVOY, LLC - SC 548E NMYRTLEBCH SC
2020-12-23 854-877 0XXX1XXX2XXX4XXX6XXX7XXX8XXX9XXX · 5 holders which blocks → ONVOY, LLC - SC 548E ROWLAND SC
2020-09-29 854-216 0–9 XXXall 10 · 3 holders which blocks → IP HORIZON LLC 515J FLORENCE SC
2020-09-15 854-214 0–9 XXXall 10 · 5 holders which blocks → IP HORIZON LLC 515J CHARLESTON SC
2020-08-28 854-213 0–9 XXXall 10 · 3 holders which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - SC 6398 BEAUFORT SC
2020-08-26 854-212 0–9 XXXall 10 · 2 holders which blocks → POWERTEL ATLANTA LICENSES, INC. 7473 BEAUFORT SC
2020-08-14 854-895 0–9 XXXall 10 · 3 holders which blocks → TWILIO INTERNATIONAL, INC. 506J CHARLESTON SC
2020-07-22 854-208 0–9 XXXall 10 · 4 holders which blocks → CSC WIRELESS, LLC 425J FLORENCE SC
2020-07-09 854-207 0–9 XXXall 10 · 5 holders which blocks → CSC WIRELESS, LLC 425J CHARLESTON SC
2020-07-06 854-206 0–9 XXXall 10 · 4 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC - GA 6214 MONCKS COR SC
2020-06-16 854-205 0–9 XXXall 10 · 3 holders which blocks → HD CARRIER LLC 321J CHARLESTON SC
2020-06-11 854-348 6XXX which blocks → FRACTEL, LLC 965H CROSS SC
2020-05-07 854-345 0–9 XXXall 10 · 6 holders which blocks → FRACTEL, LLC 965H BLUFFTON SC
2020-05-07 854-465 0XXX1XXX2XXX3XXX4XXX5XXX6XXX8XXX · 5 holders which blocks → FRACTEL, LLC 965H TIMMONSVL SC
2020-05-07 854-946 0XXX1XXX2XXX3XXX4XXX5XXX6XXX7XXX9XXX · 4 holders which blocks → FRACTEL, LLC 965H LOWCOUNTRY SC
2020-02-24 854-336 4XXX6XXX8XXX · 3 holders which blocks → FRACTEL, LLC 965H JAMESTOWN SC
2020-02-24 854-356 7XXX9XXX which blocks → FRACTEL, LLC 965H MACEDONIA SC
2020-02-24 854-842 0–9 XXXall 10 · 4 holders which blocks → FRACTEL, LLC 965H RIDGELAND 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.