BGP Prefix Lookup
Enter a prefix (or a single address). Answered from our daily copy of the global routing table.
Examples:
37.237.0.0/16
One collector's view (APNIC). A route filtered before it reaches that collector is not listed.
Announced exactly
- 37.237.0.0/16AS203214Hulum Almustakbal Company for Communication Engineering and Services LtdRPKI Valid37.237.0.0
- Registry
- RIPE NCC · United Arab Emirates · Apr 13, 2012
- Delegated block
- 37.236.0.0 – 37.239.255.255
Covering routes
0
No less-specific route covers it.
More-specific routes
124 more-specifics from 2 origin AS(es)
- 37.237.0.0/19AS199739Earthlink Telecommunications Equipment Trading & Services DMCCRPKI Valid37.237.0.0
- 37.237.0.0/20AS199739Earthlink Telecommunications Equipment Trading & Services DMCCRPKI Valid37.237.0.0
- 37.237.16.0/24AS199739Earthlink Telecommunications Equipment Trading & Services DMCCRPKI Valid37.237.16.0
- 37.237.17.0/24AS199739Earthlink Telecommunications Equipment Trading & Services DMCCRPKI Valid37.237.17.0
- 37.237.18.0/24AS199739Earthlink Telecommunications Equipment Trading & Services DMCCRPKI Valid37.237.18.0
- 37.237.19.0/24AS199739Earthlink Telecommunications Equipment Trading & Services DMCCRPKI Valid37.237.19.0
- 37.237.20.0/24AS199739Earthlink Telecommunications Equipment Trading & Services DMCCRPKI Valid37.237.20.0
- 37.237.21.0/24AS199739Earthlink Telecommunications Equipment Trading & Services DMCCRPKI Valid37.237.21.0
- 37.237.22.0/24AS199739Earthlink Telecommunications Equipment Trading & Services DMCCRPKI Valid37.237.22.0
- 37.237.23.0/24AS199739Earthlink Telecommunications Equipment Trading & Services DMCCRPKI Valid37.237.23.0
- 37.237.24.0/24AS199739Earthlink Telecommunications Equipment Trading & Services DMCCRPKI Valid37.237.24.0
- 37.237.25.0/24AS199739Earthlink Telecommunications Equipment Trading & Services DMCCRPKI Valid37.237.25.0
- 37.237.26.0/24AS199739Earthlink Telecommunications Equipment Trading & Services DMCCRPKI Valid37.237.26.0
- 37.237.27.0/24AS199739Earthlink Telecommunications Equipment Trading & Services DMCCRPKI Valid37.237.27.0
- 37.237.28.0/24AS199739Earthlink Telecommunications Equipment Trading & Services DMCCRPKI Valid37.237.28.0
- 37.237.29.0/24AS199739Earthlink Telecommunications Equipment Trading & Services DMCCRPKI Valid37.237.29.0
- 37.237.32.0/24AS199739Earthlink Telecommunications Equipment Trading & Services DMCCRPKI Valid37.237.32.0
- 37.237.40.0/24AS203214Hulum Almustakbal Company for Communication Engineering and Services LtdRPKI Valid37.237.40.0
- 37.237.41.0/24AS203214Hulum Almustakbal Company for Communication Engineering and Services LtdRPKI Valid37.237.41.0
- 37.237.42.0/24AS203214Hulum Almustakbal Company for Communication Engineering and Services LtdRPKI Valid37.237.42.0
- 37.237.43.0/24AS203214Hulum Almustakbal Company for Communication Engineering and Services LtdRPKI Valid37.237.43.0
- 37.237.45.0/24AS203214Hulum Almustakbal Company for Communication Engineering and Services LtdRPKI Valid37.237.45.0
- 37.237.48.0/24AS203214Hulum Almustakbal Company for Communication Engineering and Services LtdRPKI Valid37.237.48.0
- 37.237.49.0/24AS203214Hulum Almustakbal Company for Communication Engineering and Services LtdRPKI Valid37.237.49.0
- 37.237.50.0/24AS203214Hulum Almustakbal Company for Communication Engineering and Services LtdRPKI Valid37.237.50.0
- 37.237.51.0/24AS203214Hulum Almustakbal Company for Communication Engineering and Services LtdRPKI Valid37.237.51.0
- 37.237.52.0/24AS203214Hulum Almustakbal Company for Communication Engineering and Services LtdRPKI Valid37.237.52.0
- 37.237.53.0/24AS203214Hulum Almustakbal Company for Communication Engineering and Services LtdRPKI Valid37.237.53.0
- 37.237.54.0/24AS203214Hulum Almustakbal Company for Communication Engineering and Services LtdRPKI Valid37.237.54.0
- 37.237.55.0/24AS203214Hulum Almustakbal Company for Communication Engineering and Services LtdRPKI Valid37.237.55.0
- 37.237.56.0/24AS203214Hulum Almustakbal Company for Communication Engineering and Services LtdRPKI Valid37.237.56.0
- 37.237.57.0/24AS203214Hulum Almustakbal Company for Communication Engineering and Services LtdRPKI Valid37.237.57.0
- 37.237.58.0/24AS203214Hulum Almustakbal Company for Communication Engineering and Services LtdRPKI Valid37.237.58.0
- 37.237.59.0/24AS203214Hulum Almustakbal Company for Communication Engineering and Services LtdRPKI Valid37.237.59.0
- 37.237.60.0/24AS203214Hulum Almustakbal Company for Communication Engineering and Services LtdRPKI Valid37.237.60.0
- 37.237.62.0/24AS203214Hulum Almustakbal Company for Communication Engineering and Services LtdRPKI Valid37.237.62.0
- 37.237.63.0/24AS203214Hulum Almustakbal Company for Communication Engineering and Services LtdRPKI Valid37.237.63.0
- 37.237.64.0/24AS203214Hulum Almustakbal Company for Communication Engineering and Services LtdRPKI Valid37.237.64.0
- 37.237.65.0/24AS203214Hulum Almustakbal Company for Communication Engineering and Services LtdRPKI Valid37.237.65.0
- 37.237.66.0/23AS203214Hulum Almustakbal Company for Communication Engineering and Services LtdRPKI Valid37.237.66.0
- 37.237.68.0/23AS203214Hulum Almustakbal Company for Communication Engineering and Services LtdRPKI Valid37.237.68.0
- 37.237.73.0/24AS203214Hulum Almustakbal Company for Communication Engineering and Services LtdRPKI Valid37.237.73.0
- 37.237.79.0/24AS203214Hulum Almustakbal Company for Communication Engineering and Services LtdRPKI Valid37.237.79.0
- 37.237.80.0/23AS203214Hulum Almustakbal Company for Communication Engineering and Services LtdRPKI Valid37.237.80.0
- 37.237.82.0/23AS203214Hulum Almustakbal Company for Communication Engineering and Services LtdRPKI Valid37.237.82.0
- 37.237.84.0/23AS203214Hulum Almustakbal Company for Communication Engineering and Services LtdRPKI Valid37.237.84.0
- 37.237.86.0/23AS203214Hulum Almustakbal Company for Communication Engineering and Services LtdRPKI Valid37.237.86.0
- 37.237.88.0/21AS199739Earthlink Telecommunications Equipment Trading & Services DMCCRPKI Valid37.237.88.0
- 37.237.99.0/24AS203214Hulum Almustakbal Company for Communication Engineering and Services LtdRPKI Valid37.237.99.0
- 37.237.100.0/23AS203214Hulum Almustakbal Company for Communication Engineering and Services LtdRPKI Valid37.237.100.0
- 37.237.102.0/24AS203214Hulum Almustakbal Company for Communication Engineering and Services LtdRPKI Valid37.237.102.0
- 37.237.105.0/24AS199739Earthlink Telecommunications Equipment Trading & Services DMCCRPKI Valid37.237.105.0
- 37.237.106.0/24AS203214Hulum Almustakbal Company for Communication Engineering and Services LtdRPKI Valid37.237.106.0
- 37.237.112.0/24AS203214Hulum Almustakbal Company for Communication Engineering and Services LtdRPKI Valid37.237.112.0
- 37.237.117.0/24AS203214Hulum Almustakbal Company for Communication Engineering and Services LtdRPKI Valid37.237.117.0
- 37.237.119.0/24AS203214Hulum Almustakbal Company for Communication Engineering and Services LtdRPKI Valid37.237.119.0
- 37.237.123.0/24AS199739Earthlink Telecommunications Equipment Trading & Services DMCCRPKI Valid37.237.123.0
- 37.237.124.0/24AS203214Hulum Almustakbal Company for Communication Engineering and Services LtdRPKI Valid37.237.124.0
- 37.237.125.0/24AS203214Hulum Almustakbal Company for Communication Engineering and Services LtdRPKI Valid37.237.125.0
- 37.237.126.0/24AS203214Hulum Almustakbal Company for Communication Engineering and Services LtdRPKI Valid37.237.126.0
- 37.237.127.0/24AS203214Hulum Almustakbal Company for Communication Engineering and Services LtdRPKI Valid37.237.127.0
- 37.237.130.0/24AS203214Hulum Almustakbal Company for Communication Engineering and Services LtdRPKI Valid37.237.130.0
- 37.237.131.0/24AS203214Hulum Almustakbal Company for Communication Engineering and Services LtdRPKI Valid37.237.131.0
- 37.237.134.0/24AS203214Hulum Almustakbal Company for Communication Engineering and Services LtdRPKI Valid37.237.134.0
- 37.237.136.0/23AS203214Hulum Almustakbal Company for Communication Engineering and Services LtdRPKI Valid37.237.136.0
- 37.237.138.0/24AS203214Hulum Almustakbal Company for Communication Engineering and Services LtdRPKI Valid37.237.138.0
- 37.237.139.0/24AS203214Hulum Almustakbal Company for Communication Engineering and Services LtdRPKI Valid37.237.139.0
- 37.237.140.0/23AS203214Hulum Almustakbal Company for Communication Engineering and Services LtdRPKI Valid37.237.140.0
- 37.237.146.0/24AS203214Hulum Almustakbal Company for Communication Engineering and Services LtdRPKI Valid37.237.146.0
- 37.237.147.0/24AS199739Earthlink Telecommunications Equipment Trading & Services DMCCRPKI Valid37.237.147.0
- 37.237.148.0/24AS203214Hulum Almustakbal Company for Communication Engineering and Services LtdRPKI Valid37.237.148.0
- 37.237.149.0/24AS203214Hulum Almustakbal Company for Communication Engineering and Services LtdRPKI Valid37.237.149.0
- 37.237.150.0/24AS203214Hulum Almustakbal Company for Communication Engineering and Services LtdRPKI Valid37.237.150.0
- 37.237.156.0/24AS203214Hulum Almustakbal Company for Communication Engineering and Services LtdRPKI Valid37.237.156.0
- 37.237.158.0/24AS203214Hulum Almustakbal Company for Communication Engineering and Services LtdRPKI Valid37.237.158.0
- 37.237.163.0/24AS203214Hulum Almustakbal Company for Communication Engineering and Services LtdRPKI Valid37.237.163.0
- 37.237.164.0/22AS203214Hulum Almustakbal Company for Communication Engineering and Services LtdRPKI Valid37.237.164.0
- 37.237.168.0/24AS203214Hulum Almustakbal Company for Communication Engineering and Services LtdRPKI Valid37.237.168.0
- 37.237.169.0/24AS203214Hulum Almustakbal Company for Communication Engineering and Services LtdRPKI Valid37.237.169.0
- 37.237.171.0/24AS203214Hulum Almustakbal Company for Communication Engineering and Services LtdRPKI Valid37.237.171.0
- 37.237.174.0/24AS203214Hulum Almustakbal Company for Communication Engineering and Services LtdRPKI Valid37.237.174.0
- 37.237.177.0/24AS203214Hulum Almustakbal Company for Communication Engineering and Services LtdRPKI Valid37.237.177.0
- 37.237.178.0/24AS203214Hulum Almustakbal Company for Communication Engineering and Services LtdRPKI Valid37.237.178.0
- 37.237.179.0/24AS203214Hulum Almustakbal Company for Communication Engineering and Services LtdRPKI Valid37.237.179.0
- 37.237.184.0/21AS199739Earthlink Telecommunications Equipment Trading & Services DMCCRPKI Valid37.237.184.0
- 37.237.184.0/24AS199739Earthlink Telecommunications Equipment Trading & Services DMCCRPKI Valid37.237.184.0
- 37.237.185.0/24AS199739Earthlink Telecommunications Equipment Trading & Services DMCCRPKI Valid37.237.185.0
- 37.237.186.0/24AS199739Earthlink Telecommunications Equipment Trading & Services DMCCRPKI Valid37.237.186.0
- 37.237.187.0/24AS199739Earthlink Telecommunications Equipment Trading & Services DMCCRPKI Valid37.237.187.0
- 37.237.188.0/24AS199739Earthlink Telecommunications Equipment Trading & Services DMCCRPKI Valid37.237.188.0
- 37.237.189.0/24AS199739Earthlink Telecommunications Equipment Trading & Services DMCCRPKI Valid37.237.189.0
- 37.237.190.0/23AS199739Earthlink Telecommunications Equipment Trading & Services DMCCRPKI Valid37.237.190.0
- 37.237.192.0/24AS203214Hulum Almustakbal Company for Communication Engineering and Services LtdRPKI Valid37.237.192.0
- 37.237.193.0/24AS203214Hulum Almustakbal Company for Communication Engineering and Services LtdRPKI Valid37.237.193.0
- 37.237.194.0/24AS203214Hulum Almustakbal Company for Communication Engineering and Services LtdRPKI Valid37.237.194.0
- 37.237.195.0/24AS203214Hulum Almustakbal Company for Communication Engineering and Services LtdRPKI Valid37.237.195.0
- 37.237.197.0/24AS203214Hulum Almustakbal Company for Communication Engineering and Services LtdRPKI Valid37.237.197.0
- 37.237.198.0/24AS203214Hulum Almustakbal Company for Communication Engineering and Services LtdRPKI Valid37.237.198.0
- 37.237.199.0/24AS203214Hulum Almustakbal Company for Communication Engineering and Services LtdRPKI Valid37.237.199.0
- 37.237.204.0/24AS203214Hulum Almustakbal Company for Communication Engineering and Services LtdRPKI Valid37.237.204.0
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, 2.48.0.0/14. 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.