BGP Prefix Lookup
Enter a prefix (or a single address). Answered from our daily copy of the global routing table.
Examples:
64.128.0.0/15
One collector's view (APNIC). A route filtered before it reaches that collector is not listed.
Announced exactly
- 64.128.0.0/15AS3549Level 3 Parent, LLCRPKI Not found64.128.0.0
- Registry
- ARIN · United States · Apr 26, 2004
- Delegated block
- 64.128.0.0 – 64.129.255.255
Covering routes
0
No less-specific route covers it.
More-specific routes
56 more-specifics from 35 origin AS(es)
- 64.128.0.0/20AS3549Level 3 Parent, LLCRPKI Not found64.128.0.0
- 64.128.14.0/24AS19233Dialogix TelecomRPKI Not found64.128.14.0
- 64.128.48.0/22AS3356Level 3 Parent, LLCRPKI Not found64.128.48.0
- 64.128.62.0/24AS395523IGS EnergyRPKI Not found64.128.62.0
- 64.128.63.0/24AS394829X1 Communcations IncRPKI Not found64.128.63.0
- 64.128.70.0/24AS23469Highwoods Properties, Inc.RPKI Not found64.128.70.0
- 64.128.79.0/24AS3356Level 3 Parent, LLCRPKI Not found64.128.79.0
- 64.128.80.0/23AS3356Level 3 Parent, LLCRPKI Not found64.128.80.0
- 64.128.95.0/24AS13434CORVEL CORPORATIONRPKI Not found64.128.95.0
- 64.128.100.0/24AS22984Lightspeed CommunicationsRPKI Not found64.128.100.0
- 64.128.101.0/24AS22984Lightspeed CommunicationsRPKI Not found64.128.101.0
- 64.128.105.0/24AS395355ENVESTNET, INCRPKI Not found64.128.105.0
- 64.128.114.0/24AS19123Ohio Transmission CorporationRPKI Not found64.128.114.0
- 64.128.116.0/23AS40244Turnkey Internet Inc.RPKI Not found64.128.116.0
- 64.128.126.0/24AS3356Level 3 Parent, LLCRPKI Not found64.128.126.0
- 64.128.142.0/24AS18902CMC II, LLCRPKI Not found64.128.142.0
- 64.128.143.0/24AS3356Level 3 Parent, LLCRPKI Not found64.128.143.0
- 64.128.164.0/23AS32899Bresco BroadbandRPKI Not found64.128.164.0
- 64.128.165.0/24AS32899Bresco BroadbandRPKI Not found64.128.165.0
- 64.128.167.0/24AS22984Lightspeed CommunicationsRPKI Not found64.128.167.0
- 64.128.170.0/24AS3356Level 3 Parent, LLCRPKI Not found64.128.170.0
- 64.128.178.0/24AS29784Greenlight CapitalRPKI Not found64.128.178.0
- 64.128.180.0/24AS30061Winsupply Inc.RPKI Not found64.128.180.0
- 64.128.190.0/23AS40244Turnkey Internet Inc.RPKI Valid64.128.190.0
- 64.128.216.0/24AS26098Greensboro Auto AuctionRPKI Not found64.128.216.0
- 64.128.226.0/24AS3356Level 3 Parent, LLCRPKI Not found64.128.226.0
- 64.128.236.0/24AS3356Level 3 Parent, LLCRPKI Not found64.128.236.0
- 64.128.251.0/24AS16896NCNRPKI Not found64.128.251.0
- 64.128.252.0/24AS53938Next HorizonRPKI Not found64.128.252.0
- 64.128.255.0/24AS3356Level 3 Parent, LLCRPKI Not found64.128.255.0
- 64.129.0.0/20AS3549Level 3 Parent, LLCRPKI Not found64.129.0.0
- 64.129.14.0/24AS3356Level 3 Parent, LLCRPKI Not found64.129.14.0
- 64.129.17.0/24AS39956Community Care Physicians, P.C.RPKI Not found64.129.17.0
- 64.129.23.0/24AS32899Bresco BroadbandRPKI Not found64.129.23.0
- 64.129.37.0/24AS5777Ribbon Communications Operating Company, Inc.RPKI Not found64.129.37.0
- 64.129.39.0/24AS396245KIRBY CORPORATIONRPKI Not found64.129.39.0
- 64.129.52.0/24AS30672QMACSRPKI Not found64.129.52.0
- 64.129.77.0/24AS393396Technical Momentum, LLCRPKI Not found64.129.77.0
- 64.129.78.0/24AS20029H5 Data CentersRPKI Not found64.129.78.0
- 64.129.82.0/23AS3356Level 3 Parent, LLCRPKI Not found64.129.82.0
- 64.129.86.0/24AS31787Microport Orthopedics, Inc.RPKI Not found64.129.86.0
- 64.129.105.0/24AS11553Mannatech INC.RPKI Not found64.129.105.0
- 64.129.120.0/24AS32899Bresco BroadbandRPKI Not found64.129.120.0
- 64.129.121.0/24AS40277Crouse HospitalRPKI Not found64.129.121.0
- 64.129.123.0/24AS40800VEEAM SOFTWARE CORPORATIONRPKI Not found64.129.123.0
- 64.129.132.0/24AS3356Level 3 Parent, LLCRPKI Not found64.129.132.0
- 64.129.144.0/24AS20251SolarWinds North America, Inc.RPKI Not found64.129.144.0
- 64.129.155.0/24AS3356Level 3 Parent, LLCRPKI Not found64.129.155.0
- 64.129.162.0/24AS40215Contran CorporationRPKI Not found64.129.162.0
- 64.129.175.0/24AS18567Credit Union of TexasRPKI Not found64.129.175.0
- 64.129.180.0/24AS17060NBCUniversalRPKI Not found64.129.180.0
- 64.129.185.0/24AS401333CeraNet, Inc.RPKI Not found64.129.185.0
- 64.129.192.0/23AS3356Level 3 Parent, LLCRPKI Not found64.129.192.0
- 64.129.211.0/24AS3356Level 3 Parent, LLCRPKI Not found64.129.211.0
- 64.129.227.0/24AS26805Federal Home Loan Bank of San FranciscoRPKI Not found64.129.227.0
- 64.129.228.0/24AS26421Ponderosa CablevisionRPKI Valid64.129.228.0
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.