AS Numbers, BGP Routes & Network Topology

What is RTSAK?

RTSAK is a BGP and routing intelligence platform for researching autonomous systems, IP prefixes, and internet routing infrastructure.

What can you look up?

• AS Numbers - Research autonomous systems, their prefixes, and peering relationships
• IP Prefixes & BGP Routes - Find which AS announces a prefix, trace routing paths, and analyze BGP attributes
• Network Topology - Visualize AS interconnections and transit relationships

How to use RTSAK?

Enter an AS number (e.g., AS15169), IP address, or IP prefix in the search field above.

Our Tools

• AS Number Lookup
• IP Prefix & BGP Route Lookup

Most Popular

• AS13335
• AS15169
• AS63949
• AS14618
• AS32934
• AS16509
• AS8075
• AS396549
• AS1136
• AS6167

Trending Up

• AS-COMCAST-IBONE
• AS28513
• AS-PTTMETRO-ATM4-DF
• AS14618
• AS264659
• AS-ELBA-IX-ROUTESERVER
• AS53062
• AS53808
• AS-LINODE
• AS7195

Trending Down

• AS32934
• AS6167
• AS-ANY
• AS577
• AS12552
• AS-TRANSROUTE-SPEC
• AS42
• AS14537
• AS174
• AS45102

Try some lookups:

• AS15169 (Google)
• AS13335 (Cloudflare)