BGP Prefix Lookup
Enter a prefix (or a single address). Answered from our daily copy of the global routing table.
Examples:
42.104.0.0/13
One collector's view (APNIC). A route filtered before it reaches that collector is not listed.
Announced exactly
- 42.104.0.0/13AS38266Vodafone Idea LtdRPKI Valid42.104.0.0
- Registry
- APNIC · India · Feb 10, 2011
- Delegated block
- 42.104.0.0 – 42.111.255.255
Covering routes
0
No less-specific route covers it.
More-specific routes
556 more-specifics from 2 origin AS(es)
- 42.104.100.0/24AS55410Vodafone Idea LtdRPKI Valid42.104.100.0
- 42.104.101.0/24AS55410Vodafone Idea LtdRPKI Valid42.104.101.0
- 42.104.102.0/24AS55410Vodafone Idea LtdRPKI Valid42.104.102.0
- 42.104.103.0/24AS55410Vodafone Idea LtdRPKI Valid42.104.103.0
- 42.104.104.0/21AS55410Vodafone Idea LtdRPKI Valid42.104.104.0
- 42.104.104.0/24AS55410Vodafone Idea LtdRPKI Valid42.104.104.0
- 42.104.105.0/24AS55410Vodafone Idea LtdRPKI Valid42.104.105.0
- 42.104.106.0/24AS55410Vodafone Idea LtdRPKI Valid42.104.106.0
- 42.104.107.0/24AS55410Vodafone Idea LtdRPKI Valid42.104.107.0
- 42.104.108.0/24AS55410Vodafone Idea LtdRPKI Valid42.104.108.0
- 42.104.109.0/24AS55410Vodafone Idea LtdRPKI Valid42.104.109.0
- 42.104.110.0/24AS55410Vodafone Idea LtdRPKI Valid42.104.110.0
- 42.104.111.0/24AS55410Vodafone Idea LtdRPKI Valid42.104.111.0
- 42.104.112.0/22AS55410Vodafone Idea LtdRPKI Valid42.104.112.0
- 42.104.112.0/24AS55410Vodafone Idea LtdRPKI Valid42.104.112.0
- 42.104.113.0/24AS55410Vodafone Idea LtdRPKI Valid42.104.113.0
- 42.104.114.0/24AS55410Vodafone Idea LtdRPKI Valid42.104.114.0
- 42.104.115.0/24AS55410Vodafone Idea LtdRPKI Valid42.104.115.0
- 42.104.116.0/22AS55410Vodafone Idea LtdRPKI Valid42.104.116.0
- 42.104.116.0/24AS55410Vodafone Idea LtdRPKI Valid42.104.116.0
- 42.104.117.0/24AS55410Vodafone Idea LtdRPKI Valid42.104.117.0
- 42.104.118.0/24AS55410Vodafone Idea LtdRPKI Valid42.104.118.0
- 42.104.119.0/24AS55410Vodafone Idea LtdRPKI Valid42.104.119.0
- 42.104.120.0/21AS55410Vodafone Idea LtdRPKI Valid42.104.120.0
- 42.104.120.0/24AS55410Vodafone Idea LtdRPKI Valid42.104.120.0
- 42.104.121.0/24AS55410Vodafone Idea LtdRPKI Valid42.104.121.0
- 42.104.122.0/24AS55410Vodafone Idea LtdRPKI Valid42.104.122.0
- 42.104.123.0/24AS55410Vodafone Idea LtdRPKI Valid42.104.123.0
- 42.104.124.0/24AS55410Vodafone Idea LtdRPKI Valid42.104.124.0
- 42.104.125.0/24AS55410Vodafone Idea LtdRPKI Valid42.104.125.0
- 42.104.126.0/24AS55410Vodafone Idea LtdRPKI Valid42.104.126.0
- 42.104.127.0/24AS55410Vodafone Idea LtdRPKI Valid42.104.127.0
- 42.104.128.0/24AS38266Vodafone Idea LtdRPKI Valid42.104.128.0
- 42.104.129.0/24AS38266Vodafone Idea LtdRPKI Valid42.104.129.0
- 42.104.130.0/24AS38266Vodafone Idea LtdRPKI Valid42.104.130.0
- 42.104.131.0/24AS38266Vodafone Idea LtdRPKI Valid42.104.131.0
- 42.104.132.0/24AS38266Vodafone Idea LtdRPKI Valid42.104.132.0
- 42.104.133.0/24AS38266Vodafone Idea LtdRPKI Valid42.104.133.0
- 42.104.134.0/24AS38266Vodafone Idea LtdRPKI Valid42.104.134.0
- 42.104.135.0/24AS38266Vodafone Idea LtdRPKI Valid42.104.135.0
- 42.104.136.0/24AS38266Vodafone Idea LtdRPKI Valid42.104.136.0
- 42.104.137.0/24AS38266Vodafone Idea LtdRPKI Valid42.104.137.0
- 42.104.138.0/24AS38266Vodafone Idea LtdRPKI Valid42.104.138.0
- 42.104.139.0/24AS38266Vodafone Idea LtdRPKI Valid42.104.139.0
- 42.104.140.0/24AS38266Vodafone Idea LtdRPKI Valid42.104.140.0
- 42.104.141.0/24AS38266Vodafone Idea LtdRPKI Valid42.104.141.0
- 42.104.142.0/24AS38266Vodafone Idea LtdRPKI Valid42.104.142.0
- 42.104.144.0/24AS38266Vodafone Idea LtdRPKI Valid42.104.144.0
- 42.104.145.0/24AS38266Vodafone Idea LtdRPKI Valid42.104.145.0
- 42.104.146.0/24AS38266Vodafone Idea LtdRPKI Valid42.104.146.0
- 42.104.147.0/24AS38266Vodafone Idea LtdRPKI Valid42.104.147.0
- 42.104.148.0/24AS38266Vodafone Idea LtdRPKI Valid42.104.148.0
- 42.104.149.0/24AS38266Vodafone Idea LtdRPKI Valid42.104.149.0
- 42.104.150.0/24AS38266Vodafone Idea LtdRPKI Valid42.104.150.0
- 42.104.151.0/24AS38266Vodafone Idea LtdRPKI Valid42.104.151.0
- 42.104.152.0/24AS38266Vodafone Idea LtdRPKI Valid42.104.152.0
- 42.104.153.0/24AS38266Vodafone Idea LtdRPKI Valid42.104.153.0
- 42.104.154.0/24AS38266Vodafone Idea LtdRPKI Valid42.104.154.0
- 42.104.155.0/24AS38266Vodafone Idea LtdRPKI Valid42.104.155.0
- 42.104.156.0/24AS38266Vodafone Idea LtdRPKI Valid42.104.156.0
- 42.104.157.0/24AS38266Vodafone Idea LtdRPKI Valid42.104.157.0
- 42.104.158.0/24AS38266Vodafone Idea LtdRPKI Valid42.104.158.0
- 42.104.160.0/24AS38266Vodafone Idea LtdRPKI Valid42.104.160.0
- 42.104.161.0/24AS38266Vodafone Idea LtdRPKI Valid42.104.161.0
- 42.104.162.0/24AS38266Vodafone Idea LtdRPKI Valid42.104.162.0
- 42.104.163.0/24AS38266Vodafone Idea LtdRPKI Valid42.104.163.0
- 42.104.168.0/22AS38266Vodafone Idea LtdRPKI Valid42.104.168.0
- 42.104.172.0/22AS38266Vodafone Idea LtdRPKI Valid42.104.172.0
- 42.104.176.0/22AS38266Vodafone Idea LtdRPKI Valid42.104.176.0
- 42.104.180.0/22AS38266Vodafone Idea LtdRPKI Valid42.104.180.0
- 42.104.184.0/22AS38266Vodafone Idea LtdRPKI Valid42.104.184.0
- 42.104.188.0/22AS38266Vodafone Idea LtdRPKI Valid42.104.188.0
- 42.104.192.0/24AS38266Vodafone Idea LtdRPKI Valid42.104.192.0
- 42.104.193.0/24AS38266Vodafone Idea LtdRPKI Valid42.104.193.0
- 42.104.194.0/24AS38266Vodafone Idea LtdRPKI Valid42.104.194.0
- 42.104.195.0/24AS38266Vodafone Idea LtdRPKI Valid42.104.195.0
- 42.104.196.0/24AS38266Vodafone Idea LtdRPKI Valid42.104.196.0
- 42.104.197.0/24AS38266Vodafone Idea LtdRPKI Valid42.104.197.0
- 42.104.198.0/24AS38266Vodafone Idea LtdRPKI Valid42.104.198.0
- 42.104.199.0/24AS38266Vodafone Idea LtdRPKI Valid42.104.199.0
- 42.104.200.0/24AS38266Vodafone Idea LtdRPKI Valid42.104.200.0
- 42.104.201.0/24AS38266Vodafone Idea LtdRPKI Valid42.104.201.0
- 42.104.202.0/24AS38266Vodafone Idea LtdRPKI Valid42.104.202.0
- 42.104.203.0/24AS38266Vodafone Idea LtdRPKI Valid42.104.203.0
- 42.104.204.0/24AS38266Vodafone Idea LtdRPKI Valid42.104.204.0
- 42.104.205.0/24AS38266Vodafone Idea LtdRPKI Valid42.104.205.0
- 42.104.206.0/24AS38266Vodafone Idea LtdRPKI Valid42.104.206.0
- 42.104.207.0/24AS38266Vodafone Idea LtdRPKI Valid42.104.207.0
- 42.104.208.0/24AS38266Vodafone Idea LtdRPKI Valid42.104.208.0
- 42.104.209.0/24AS38266Vodafone Idea LtdRPKI Valid42.104.209.0
- 42.104.210.0/24AS38266Vodafone Idea LtdRPKI Valid42.104.210.0
- 42.104.211.0/24AS38266Vodafone Idea LtdRPKI Valid42.104.211.0
- 42.104.212.0/24AS38266Vodafone Idea LtdRPKI Valid42.104.212.0
- 42.104.213.0/24AS38266Vodafone Idea LtdRPKI Valid42.104.213.0
- 42.104.214.0/24AS38266Vodafone Idea LtdRPKI Valid42.104.214.0
- 42.104.216.0/23AS38266Vodafone Idea LtdRPKI Valid42.104.216.0
- 42.104.218.0/23AS38266Vodafone Idea LtdRPKI Valid42.104.218.0
- 42.104.220.0/23AS38266Vodafone Idea LtdRPKI Valid42.104.220.0
- 42.104.222.0/23AS38266Vodafone Idea LtdRPKI Valid42.104.222.0
- 42.104.224.0/23AS38266Vodafone Idea LtdRPKI Valid42.104.224.0
Showing the first 100.
On the internet, routes are announced as prefixes: an autonomous system tells its neighbours via BGP that it can deliver traffic for, say, 90.190.0.0/15 (Telia Eesti, AS3249). This tool looks a prefix up in our daily copy of the global routing table and shows three things:
- Exact announcements: which AS originates exactly this prefix. More than one origin (a MOAS) is normal for anycast services and some multihomed networks, and suspicious otherwise.
- Covering routes: less-specific announcements that contain it. Traffic follows the most specific route, so a covering route matters if the more-specific one disappears.
- More-specifics: announcements inside it, which may belong to other networks (customers, or a hijack).
Each announced route is also checked against the RPKI: whether a ROA authorises its origin AS.
The table is the view from APNIC’s route collector. Most of the global table is the same from everywhere, but a route that is filtered before it reaches that collector will not appear.
Frequently asked questions
Why is my /24 not listed but a /16 is?
Your addresses are announced as part of the larger block, and no one announces the /24 separately. That is the normal case for most customers of a provider.
What is a more-specific hijack?
Someone announces a longer prefix inside your space. Because routers prefer the most specific route, traffic goes to them. RPKI with a strict max length makes such announcements invalid.
Can I enter a single address?
Yes. The tool then shows the most specific announced route that contains it.