NumberResearch Membership · Data 09/19/2026

Recent prefix assignments

371 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)

Which carriers received which NPA-NXX prefixes, and where. Assignments are initial assignments from NANPA records — because of number portability, the current serving carrier of individual numbers may differ. For finer-grained activity, see the thousands-block view above.

Most active assignees, last 30 days
8X8, INC. 38
ONVOY, LLC - CA 31
NEW CINGULAR WIRELESS PCS, LLC - IL 31
NEW CINGULAR WIRELESS PCS, LLC - DC 30
ONVOY, LLC - NJ 18
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-NXXAssigneeOCNRate centerState
216-362 OHIO BELL TEL CO 9321 CLEVELAND OH
216-363 OHIO BELL TEL CO 9321 CLEVELAND OH
216-364 PAETEC ITEL, LLC 829J TERRACE OH
216-365 PAETEC ITEL, LLC 829J MONTRSE OH
216-367 LEVEL 3 COMMUNICATIONS, LLC - OH 4863 CLEVELAND OH
216-368 OHIO BELL TEL CO 9321 CLEVELAND OH
216-369 PAETEC ITEL, LLC 829J INDEPNDNCE OH
216-370 TELEPORT COMMUNICATIONS AMERICA, LLC - OH 7532 CLEVELAND OH
216-371 OHIO BELL TEL CO 9321 CLEVELAND OH
216-372 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 6025 CLEVELAND OH
216-373 LEVEL 3 COMMUNICATIONS, LLC - OH 4863 CLEVELAND OH
216-374 T-MOBILE USA, INC. 6529 CLEVELAND OH
216-375 NEW CINGULAR WIRELESS PCS, LLC - IL 6534 CLEVELAND OH
216-377 LEVEL 3 COMMUNICATIONS, LLC - OH 4863 CLEVELAND OH
216-378 OHIO BELL TEL CO 9321 TERRACE OH
216-379 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 6025 CLEVELAND OH
216-380 OH
216-381 OHIO BELL TEL CO 9321 CLEVELAND OH
216-382 OHIO BELL TEL CO 9321 CLEVELAND OH
216-383 OHIO BELL TEL CO 9321 CLEVELAND OH
216-385 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 6025 CLEVELAND OH
216-386 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 6025 CLEVELAND OH
216-387 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 6025 CLEVELAND OH
216-388 SPOK, INC. 6630 CLEVELAND OH
216-389 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 6025 CLEVELAND OH
216-390 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 6025 CLEVELAND OH
216-391 OHIO BELL TEL CO 9321 CLEVELAND OH
216-392 NEW CINGULAR WIRELESS PCS, LLC - IL 6534 CLEVELAND OH
216-393 LEVEL 3 COMMUNICATIONS, LLC - OH 4863 INDEPNDNCE OH
216-394 OHIO BELL TEL CO 9321 CLEVELAND OH
216-395 LEVEL 3 COMMUNICATIONS, LLC - OH 4863 MONTRSE OH
216-396 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 6025 CLEVELAND OH
216-397 OHIO BELL TEL CO 9321 CLEVELAND OH
216-398 OHIO BELL TEL CO 9321 CLEVELAND OH
216-399 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 6025 CLEVELAND OH
216-400 TWC IP ENABLED SERVICES, LLC 793K CLEVELAND OH
216-401 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 6025 CLEVELAND OH
216-402 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 6025 CLEVELAND OH
216-403 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 6025 CLEVELAND OH
216-404 OHIO BELL TEL CO 9321 CLEVELAND OH
216-406 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 6025 CLEVELAND OH
216-407 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 6025 CLEVELAND OH
216-408 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 6025 CLEVELAND OH
216-409 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 6025 CLEVELAND OH
216-410 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 6025 CLEVELAND OH
216-411 MULTIPLE OCN LISTING MULT XXXXXXXXXX OH
216-416 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - OH 7443 CLEVELAND OH
216-419 OH
216-420 OHIO BELL TEL CO 9321 CLEVELAND OH
216-421 OHIO BELL TEL CO 9321 CLEVELAND OH

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.