BGP Prefix Lookup
Enter a prefix (or a single address). Answered from our daily copy of the global routing table.
Examples:
64.105.0.0/16
One collector's view (APNIC). A route filtered before it reaches that collector is not listed.
Announced exactly
- 64.105.0.0/16AS3257GTT Communications Inc.RPKI Not found64.105.0.0
- Registry
- ARIN · United States · Jun 7, 2000
- Delegated block
- 64.105.0.0 – 64.105.255.255
Covering routes
0
No less-specific route covers it.
More-specific routes
123 more-specifics from 16 origin AS(es)
- 64.105.0.0/22AS3257GTT Communications Inc.RPKI Valid64.105.0.0
- 64.105.4.0/22AS40676Psychz NetworksRPKI Valid64.105.4.0
- 64.105.8.0/22AS3257GTT Communications Inc.RPKI Valid64.105.8.0
- 64.105.12.0/22AS40676Psychz NetworksRPKI Valid64.105.12.0
- 64.105.16.0/22AS3257GTT Communications Inc.RPKI Valid64.105.16.0
- 64.105.20.0/23AS3257GTT Communications Inc.RPKI Valid64.105.20.0
- 64.105.22.0/24AS6079RCNRPKI Valid64.105.22.0
- 64.105.23.0/24AS3257GTT Communications Inc.RPKI Valid64.105.23.0
- 64.105.24.0/21AS3257GTT Communications Inc.RPKI Valid64.105.24.0
- 64.105.32.0/21AS3257GTT Communications Inc.RPKI Valid64.105.32.0
- 64.105.40.0/23AS3257GTT Communications Inc.RPKI Valid64.105.40.0
- 64.105.42.0/24AS3257GTT Communications Inc.RPKI Valid64.105.42.0
- 64.105.43.0/24AS10753Level 3 Parent, LLCRPKI Valid64.105.43.0
- 64.105.44.0/22AS20115Charter Communications LLCRPKI Valid64.105.44.0
- 64.105.48.0/23AS3257GTT Communications Inc.RPKI Valid64.105.48.0
- 64.105.50.0/24AS3257GTT Communications Inc.RPKI Not found64.105.50.0
- 64.105.52.0/23AS3257GTT Communications Inc.RPKI Not found64.105.52.0
- 64.105.54.0/23AS3257GTT Communications Inc.RPKI Not found64.105.54.0
- 64.105.56.0/21AS3257GTT Communications Inc.RPKI Valid64.105.56.0
- 64.105.64.0/24AS7459Grande Communications Networks, LLCRPKI Valid64.105.64.0
- 64.105.65.0/24AS7459Grande Communications Networks, LLCRPKI Valid64.105.65.0
- 64.105.66.0/24AS7459Grande Communications Networks, LLCRPKI Valid64.105.66.0
- 64.105.67.0/24AS7459Grande Communications Networks, LLCRPKI Valid64.105.67.0
- 64.105.68.0/24AS7459Grande Communications Networks, LLCRPKI Valid64.105.68.0
- 64.105.69.0/24AS7459Grande Communications Networks, LLCRPKI Valid64.105.69.0
- 64.105.70.0/24AS7459Grande Communications Networks, LLCRPKI Valid64.105.70.0
- 64.105.71.0/24AS7459Grande Communications Networks, LLCRPKI Valid64.105.71.0
- 64.105.72.0/24AS48529Quantumbeam Communications LimitedRPKI Valid64.105.72.0
- 64.105.74.0/23AS20001Charter Communications IncRPKI Valid64.105.74.0
- 64.105.76.0/24AS11404Wave BroadbandRPKI Valid64.105.76.0
- 64.105.77.0/24AS11404Wave BroadbandRPKI Valid64.105.77.0
- 64.105.78.0/24AS11404Wave BroadbandRPKI Valid64.105.78.0
- 64.105.79.0/24AS11404Wave BroadbandRPKI Valid64.105.79.0
- 64.105.80.0/23AS30058FDCservers.netRPKI Valid64.105.80.0
- 64.105.82.0/23AS30058FDCservers.netRPKI Valid64.105.82.0
- 64.105.84.0/23AS55470Cyfuture India Pvt. Ltd.RPKI Valid64.105.84.0
- 64.105.86.0/23AS30058FDCservers.netRPKI Valid64.105.86.0
- 64.105.88.0/23AS212238Datacamp LimitedRPKI Valid64.105.88.0
- 64.105.90.0/23AS55470Cyfuture India Pvt. Ltd.RPKI Valid64.105.90.0
- 64.105.92.0/23AS30058FDCservers.netRPKI Valid64.105.92.0
- 64.105.94.0/23AS30058FDCservers.netRPKI Valid64.105.94.0
- 64.105.98.0/23AS20001Charter Communications IncRPKI Valid64.105.98.0
- 64.105.109.0/24AS20001Charter Communications IncRPKI Valid64.105.109.0
- 64.105.110.0/23AS20001Charter Communications IncRPKI Valid64.105.110.0
- 64.105.112.0/24AS7459Grande Communications Networks, LLCRPKI Valid64.105.112.0
- 64.105.113.0/24AS7459Grande Communications Networks, LLCRPKI Valid64.105.113.0
- 64.105.114.0/24AS7459Grande Communications Networks, LLCRPKI Valid64.105.114.0
- 64.105.115.0/24AS7459Grande Communications Networks, LLCRPKI Valid64.105.115.0
- 64.105.116.0/24AS7459Grande Communications Networks, LLCRPKI Valid64.105.116.0
- 64.105.117.0/24AS7459Grande Communications Networks, LLCRPKI Valid64.105.117.0
- 64.105.118.0/24AS7459Grande Communications Networks, LLCRPKI Valid64.105.118.0
- 64.105.119.0/24AS7459Grande Communications Networks, LLCRPKI Valid64.105.119.0
- 64.105.125.0/24AS20001Charter Communications IncRPKI Valid64.105.125.0
- 64.105.126.0/23AS20001Charter Communications IncRPKI Valid64.105.126.0
- 64.105.128.0/22AS20001Charter Communications IncRPKI Valid64.105.128.0
- 64.105.133.0/24AS20001Charter Communications IncRPKI Valid64.105.133.0
- 64.105.134.0/23AS20001Charter Communications IncRPKI Valid64.105.134.0
- 64.105.136.0/24AS7459Grande Communications Networks, LLCRPKI Valid64.105.136.0
- 64.105.137.0/24AS7459Grande Communications Networks, LLCRPKI Valid64.105.137.0
- 64.105.138.0/24AS7459Grande Communications Networks, LLCRPKI Valid64.105.138.0
- 64.105.139.0/24AS7459Grande Communications Networks, LLCRPKI Valid64.105.139.0
- 64.105.140.0/24AS7459Grande Communications Networks, LLCRPKI Valid64.105.140.0
- 64.105.141.0/24AS7459Grande Communications Networks, LLCRPKI Valid64.105.141.0
- 64.105.142.0/24AS7459Grande Communications Networks, LLCRPKI Valid64.105.142.0
- 64.105.143.0/24AS7459Grande Communications Networks, LLCRPKI Valid64.105.143.0
- 64.105.144.0/24AS7459Grande Communications Networks, LLCRPKI Valid64.105.144.0
- 64.105.145.0/24AS7459Grande Communications Networks, LLCRPKI Valid64.105.145.0
- 64.105.146.0/24AS7459Grande Communications Networks, LLCRPKI Valid64.105.146.0
- 64.105.147.0/24AS7459Grande Communications Networks, LLCRPKI Valid64.105.147.0
- 64.105.148.0/24AS7459Grande Communications Networks, LLCRPKI Valid64.105.148.0
- 64.105.149.0/24AS7459Grande Communications Networks, LLCRPKI Valid64.105.149.0
- 64.105.150.0/24AS7459Grande Communications Networks, LLCRPKI Valid64.105.150.0
- 64.105.151.0/24AS7459Grande Communications Networks, LLCRPKI Valid64.105.151.0
- 64.105.153.0/24AS5065Bunny CommunicationsRPKI Valid64.105.153.0
- 64.105.154.0/23AS20001Charter Communications IncRPKI Valid64.105.154.0
- 64.105.157.0/24AS5065Bunny CommunicationsRPKI Valid64.105.157.0
- 64.105.158.0/24AS5065Bunny CommunicationsRPKI Valid64.105.158.0
- 64.105.160.0/23AS20001Charter Communications IncRPKI Valid64.105.160.0
- 64.105.162.0/24AS5065Bunny CommunicationsRPKI Valid64.105.162.0
- 64.105.164.0/22AS20001Charter Communications IncRPKI Valid64.105.164.0
- 64.105.168.0/22AS20001Charter Communications IncRPKI Valid64.105.168.0
- 64.105.173.0/24AS5065Bunny CommunicationsRPKI Valid64.105.173.0
- 64.105.174.0/23AS20001Charter Communications IncRPKI Valid64.105.174.0
- 64.105.176.0/23AS20001Charter Communications IncRPKI Valid64.105.176.0
- 64.105.178.0/24AS5065Bunny CommunicationsRPKI Valid64.105.178.0
- 64.105.180.0/22AS20001Charter Communications IncRPKI Valid64.105.180.0
- 64.105.184.0/22AS20001Charter Communications IncRPKI Valid64.105.184.0
- 64.105.188.0/24AS5065Bunny CommunicationsRPKI Valid64.105.188.0
- 64.105.190.0/23AS20001Charter Communications IncRPKI Valid64.105.190.0
- 64.105.192.0/22AS20001Charter Communications IncRPKI Valid64.105.192.0
- 64.105.196.0/24AS5065Bunny CommunicationsRPKI Valid64.105.196.0
- 64.105.198.0/24AS5065Bunny CommunicationsRPKI Valid64.105.198.0
- 64.105.200.0/23AS20001Charter Communications IncRPKI Valid64.105.200.0
- 64.105.203.0/24AS5065Bunny CommunicationsRPKI Valid64.105.203.0
- 64.105.205.0/24AS5065Bunny CommunicationsRPKI Valid64.105.205.0
- 64.105.206.0/23AS20001Charter Communications IncRPKI Valid64.105.206.0
- 64.105.208.0/23AS30058FDCservers.netRPKI Valid64.105.208.0
- 64.105.210.0/23AS30058FDCservers.netRPKI Valid64.105.210.0
- 64.105.212.0/23AS3320Deutsche Telekom AGRPKI Valid64.105.212.0
- 64.105.214.0/23AS3320Deutsche Telekom AGRPKI Valid64.105.214.0
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, 49.224.0.0/14. 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.