ASN Lookup Tool
AS21928 TMobile USA Inc.
An Autonomous System (AS) is a network (or collection of networks) that are all managed and supervised by a single entity or organisation. This tool provides a comprehensive ownership and connectivity report for any given AS number.
ASN Lookup for:
AS21928
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ASN
AS21928
Organisation
TMobile USA Inc.
AS Name
T-MOBILE-AS21928
IPv4 Addresses Announced
13,223,420
IPv4 Prefixes Announced
398
Bogon Prefixes Announced
0
IPv4 Space Rank
#35 out of 74,591
Registry
ARIN
Registered Country
US
Registration Date
2002-06-12
Registration Change
2012-02-24
RETN Limited