Data as of Nov 11, 2026

166.181.80.0/21

No anonymizer space · no proxy exits in 30 days

T-Mobile USA, Inc.

Announcement

this exact prefix

No RPKI

Announced by

Type

Mobile

Announcements

Less specific

Prefix	Origin	Type	Holder	RPKI
166.181.0.0/16 since Nov 2006	AS6614	Mobile	T-Mobile USA, Inc.

Nesting

Sized by addresses, colored by each announcement's type. Click a tile with children to zoom in, a leaf to open it.

More specific

Prefix	Origin	Type	Holder
166.181.80.0/24 since Feb 2012	AS6614	Mobile	T-Mobile USA, Inc.
166.181.81.0/24 since Mar 2013	AS6614	Mobile	T-Mobile USA, Inc.
166.181.82.0/24 since Dec 2012	AS6614	Mobile	T-Mobile USA, Inc.
166.181.83.0/24 since Dec 2012	AS6614	Mobile	T-Mobile USA, Inc.
166.181.84.0/24 since Apr 2017	AS6614	Mobile	T-Mobile USA, Inc.
166.181.85.0/24 since Apr 2017	AS6614	Mobile	T-Mobile USA, Inc.
166.181.86.0/24 since Oct 2017	AS6614	Mobile	T-Mobile USA, Inc.
166.181.87.0/24 since Oct 2017	AS6614	Mobile	T-Mobile USA, Inc.

Routing timeline

Summary