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
216-867 LEVEL 3 COMMUNICATIONS, LLC - OH 4863 INDEPNDNCE OH
216-868 ONVOY, LLC - OH 464C INDEPNDNCE OH
216-870 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 6025 CLEVELAND OH
216-875 OHIO BELL TEL CO 9321 CLEVELAND OH
216-880 SPOK, INC. 6630 TERRACE OH
216-881 OHIO BELL TEL CO 9321 CLEVELAND OH
216-883 OHIO BELL TEL CO 9321 CLEVELAND OH
216-885 OH
216-889 OHIO BELL TEL CO 9321 CLEVELAND OH
216-890 SPOK, INC. 6630 CLEVELAND OH
216-894 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 6025 CLEVELAND OH
216-896 OHIO BELL TEL CO 9321 TERRACE OH
216-898 OHIO BELL TEL CO 9321 CLEVELAND OH
216-901 OHIO BELL TEL CO 9321 INDEPNDNCE OH
216-902 OHIO BELL TEL CO 9321 CLEVELAND OH
216-903 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 6025 CLEVELAND OH
216-904 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 6025 CLEVELAND OH
216-905 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 6025 CLEVELAND OH
216-906 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 6025 CLEVELAND OH
216-910 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - OH 7443 TERRACE OH
216-911 MULTIPLE OCN LISTING MULT XXXXXXXXXX OH
216-912 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - OH 7443 CLEVELAND OH
216-916 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - OH 7443 CLEVELAND OH
216-920 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - OH 7443 CLEVELAND OH
216-921 OHIO BELL TEL CO 9321 CLEVELAND OH
216-923 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - OH 7443 CLEVELAND OH
216-924 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 6025 CLEVELAND OH
216-925 T-MOBILE USA, INC. 6529 CLEVELAND OH
216-926 T-MOBILE USA, INC. 6529 CLEVELAND OH
216-928 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - OH 7443 CLEVELAND OH
216-929 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - OH 7443 CLEVELAND OH
216-931 OHIO BELL TEL CO 9321 CLEVELAND OH
216-932 OHIO BELL TEL CO 9321 CLEVELAND OH
216-937 OHIO BELL TEL CO 9321 CLEVELAND OH
216-938 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 6025 CLEVELAND OH
216-939 OHIO BELL TEL CO 9321 CLEVELAND OH
216-941 OHIO BELL TEL CO 9321 CLEVELAND OH
216-950 OH
216-952 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 6025 CLEVELAND OH
216-956 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 6025 CLEVELAND OH
216-957 OHIO BELL TEL CO 9321 CLEVELAND OH
216-958 OH
216-959 OH
216-961 OHIO BELL TEL CO 9321 CLEVELAND OH
216-965 T-MOBILE USA, INC. 6529 CLEVELAND OH
216-970 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 6025 CLEVELAND OH
216-973 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 6025 CLEVELAND OH
216-976 MULTIPLE OCN LISTING MULT XXXXXXXXXX OH
216-977 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - OH 7443 CLEVELAND OH
216-978 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 6025 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.