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 272
NEW CINGULAR WIRELESS PCS, LLC - DC 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
2020-10-01 272-247 2XXX3XXX7XXX8XXX9XXX · 4 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC - DC 4036 MIDLEBYCTR PA
2020-10-01 272-249 0–9 XXXall 10 · 3 holders which blocks → HD CARRIER LLC 321J SCRANTON PA
2020-08-17 272-245 0–9 XXXall 10 · 6 holders which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - PA 6392 POTTSVILLE PA
2020-07-22 272-500 0XXX1XXX2XXX3XXX5XXX6XXX9XXX · 5 holders which blocks → FRACTEL, LLC 965H BEACH LAKE PA
2020-07-22 272-600 0–9 XXXall 10 · 3 holders which blocks → FRACTEL, LLC 965H CNYNGHDRMS PA
2020-07-06 272-345 0–9 XXXall 10 · 5 holders which blocks → FRACTEL, LLC 965H LOYALSOCK PA
2020-07-06 272-766 0–9 XXXall 10 · 7 holders which blocks → FRACTEL, LLC 965H LOCK HAVEN PA
2020-07-06 272-788 0–9 XXXall 10 · 6 holders which blocks → FRACTEL, LLC 965H LEWISBURG PA
2020-07-06 272-822 0XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX · 5 holders which blocks → FRACTEL, LLC 965H JERSEYSHOR PA
2020-05-18 272-243 0XXX1XXX2XXX3XXX4XXX5XXX6XXX7XXX9XXX · 6 holders which blocks → BANDWIDTH.COM CLEC, LLC - PA 002F ORWIGSBURG PA
2020-05-13 272-256 0XXX1XXX2XXX4XXX5XXX7XXX8XXX9XXX · 6 holders which blocks → ONVOY, LLC - PA 547E NEWPHLDLPH PA
2020-05-13 272-261 0XXX1XXX2XXX3XXX4XXX5XXX6XXX7XXX9XXX · 3 holders which blocks → ONVOY, LLC - PA 547E FRACKVILLE PA
2020-05-13 272-271 0–9 XXXall 10 · 4 holders which blocks → ONVOY, LLC - PA 547E STROUDSBG PA
2020-05-13 272-277 0–9 XXXall 10 · 5 holders which blocks → ONVOY, LLC - PA 547E MATAMORAS PA
2020-05-07 272-242 0–9 XXXall 10 · 6 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - PA 4007 JERMYN PA
2020-04-29 272-240 0XXX1XXX2XXX3XXX4XXX5XXX7XXX · 7 holders which blocks → BANDWIDTH.COM CLEC, LLC - PA 002F MCADOO PA
2020-04-27 272-238 0–9 XXXall 10 · 7 holders which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - PA 6392 SUNBURY PA
2020-04-22 272-239 0XXX1XXX2XXX3XXX6XXX7XXX8XXX9XXX · 8 holders which blocks → BANDWIDTH.COM CLEC, LLC - PA 002F WALENPAPCK PA
2020-04-16 272-266 0–9 XXXall 10 · 5 holders which blocks → BANDWIDTH.COM CLEC, LLC - PA 002F CATAWISSA PA
2020-04-13 272-229 0XXX1XXX2XXX3XXX5XXX7XXX8XXX9XXX · 6 holders which blocks → BANDWIDTH.COM CLEC, LLC - PA 002F CHAPMAN LK PA
2020-02-10 272-237 0–9 XXXall 10 · 4 holders which blocks → MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 BLOOMSBURG PA
2019-10-16 272-233 0–9 XXXall 10 · 3 holders which blocks → ONVOY, LLC - PA 547E POCONOLAKE PA
2019-10-16 272-234 0–9 XXXall 10 · 4 holders which blocks → ONVOY, LLC - PA 547E TOWANDA PA
2019-10-15 272-232 0–9 XXXall 10 · 4 holders which blocks → ONVOY, LLC - PA 547E DALTON PA
2019-10-09 272-235 0–9 XXXall 10 · 6 holders which blocks → CSC WIRELESS, LLC 425J SCRANTON PA
2019-09-06 272-231 0–9 XXXall 10 · 3 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC - DC 4036 SELINSGRV PA
2019-05-08 272-230 0–9 XXXwhole prefix which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - PA 6392 WILLIAMSPT PA
2019-04-09 272-227 0–9 XXXall 10 · 5 holders which blocks → ONVOY, LLC - PA 547E ASHLAND PA
2019-03-21 272-800 0XXX1XXX2XXX3XXX8XXX9XXX · 5 holders which blocks → TERRA NOVA TELECOM INC. 145J SCRANTON PA
2019-03-08 272-241 0–9 XXXall 10 · 4 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC - DC 4036 MT CARMEL PA
2018-12-12 272-228 0–9 XXXall 10 · 6 holders which blocks → COMCAST IP PHONE, LLC 318J SCRANTON PA
2018-11-09 272-226 0–9 XXXall 10 · 9 holders which blocks → D&E/OMNIPOINT WIREL JOINT VENT LP DBA PCS ONE 6846 BERWICK PA
2018-07-31 272-223 0–9 XXXall 10 · 7 holders which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - PA 6392 HAZLETON PA
2018-07-31 272-224 0–9 XXXall 10 · 5 holders which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - PA 6392 POTTSVILLE PA
2018-07-23 272-218 0–9 XXXall 10 · 3 holders which blocks → ONVOY, LLC - PA 547E NORTHUBRLD PA
2018-06-29 272-217 0XXX1XXX2XXX3XXX4XXX5XXX · 3 holders which blocks → NEP TELCOM, INC. - PA 986H BROOKLYN PA
2018-06-20 272-270 0–9 XXXall 10 · 2 holders which blocks → ONVOY SPECTRUM, LLC 624H BLOOMSBURG PA
2018-06-06 272-400 0–9 XXXall 10 · 5 holders which blocks → CORE COMMUNICATIONS, INC. - PA 3806 LAKE ARIEL PA
2018-05-24 272-409 8XXX9XXX which blocks → NEW CINGULAR WIRELESS PCS, LLC - DC 4036 MILLERTON PA
2018-04-30 272-639 0–9 XXXwhole prefix which blocks → LEVEL 3 COMMUNICATIONS, LLC - PA 4007 LANSFORD PA
2018-03-08 272-220 0–9 XXXall 10 · 7 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC - DC 4036 MIDDLEBURG PA
2018-02-22 272-216 0–9 XXXall 10 · 5 holders which blocks → PEERLESS NETWORK OF PENNSYLVANIA, LLC - PA 967E HONESDALE PA
2018-02-21 272-214 1XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 5 holders which blocks → MCIMETRO ACCESS TRANSMISSION SERVICES LLC - PA 7434 CLARKSSMMT PA
2018-02-21 272-215 0–9 XXXall 10 · 4 holders which blocks → PEERLESS NETWORK OF PENNSYLVANIA, LLC - PA 967E WILLIAMSPT PA
2017-08-18 272-420 0–9 XXXall 10 · 4 holders which blocks → VONAGE AMERICA LLC 197D STROUDSBG PA
2017-08-04 272-483 0–9 XXXall 10 · 4 holders which blocks → ONVOY, LLC - PA 547E MILTON PA
2017-08-03 272-336 0–9 XXXall 10 · 5 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC - DC 4036 HAWLEY PA
2017-06-05 272-207 0–9 XXXall 10 · 6 holders which blocks → TELNYX LLC 073H SCRANTON PA
2017-05-23 272-206 0–9 XXXall 10 · 4 holders which blocks → WINDSTREAM PENNSYLVANIA, INC. 0176 WATSONTOWN PA
2017-05-22 272-433 0–9 XXXall 10 · 7 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - PA 4007 MILLVILLE PA

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.