BGP Prefix Lookup
Enter a prefix (or a single address). Answered from our daily copy of the global routing table.
Examples:
167.142.0.0/16
One collector's view (APNIC). A route filtered before it reaches that collector is not listed.
Announced exactly
- 167.142.0.0/16AS5056Aureon Network ServicesRPKI Not found167.142.0.0
- Registry
- ARIN · United States · Jul 19, 1993
- Delegated block
- 167.142.0.0 – 167.142.255.255
Covering routes
0
No less-specific route covers it.
More-specific routes
66 more-specifics from 25 origin AS(es)
- 167.142.11.0/24AS5056Aureon Network ServicesRPKI Not found167.142.11.0
- 167.142.18.0/24AS5056Aureon Network ServicesRPKI Not found167.142.18.0
- 167.142.19.0/24AS5056Aureon Network ServicesRPKI Not found167.142.19.0
- 167.142.23.0/24AS5056Aureon Network ServicesRPKI Not found167.142.23.0
- 167.142.28.0/22AS62886OMNITEL COMMUNICATIONSRPKI Not found167.142.28.0
- 167.142.34.0/24AS18883FiberNet Communications L.C.RPKI Not found167.142.34.0
- 167.142.36.0/24AS63394Eastern Iowa IP, LLCRPKI Not found167.142.36.0
- 167.142.38.0/24AS46892Winnebago Cooperative Telecom AssociationRPKI Not found167.142.38.0
- 167.142.39.0/24AS5056Aureon Network ServicesRPKI Not found167.142.39.0
- 167.142.43.0/24AS5056Aureon Network ServicesRPKI Not found167.142.43.0
- 167.142.44.0/22AS62886OMNITEL COMMUNICATIONSRPKI Not found167.142.44.0
- 167.142.51.0/24AS5056Aureon Network ServicesRPKI Not found167.142.51.0
- 167.142.67.0/24AS5056Aureon Network ServicesRPKI Not found167.142.67.0
- 167.142.76.0/22AS62886OMNITEL COMMUNICATIONSRPKI Not found167.142.76.0
- 167.142.86.0/24AS5056Aureon Network ServicesRPKI Not found167.142.86.0
- 167.142.87.0/24AS5056Aureon Network ServicesRPKI Not found167.142.87.0
- 167.142.92.0/24AS5056Aureon Network ServicesRPKI Not found167.142.92.0
- 167.142.96.0/24AS397982GRAND MOUND COOPERATIVE TELEPHONE ASSOCIATIONRPKI Not found167.142.96.0
- 167.142.97.0/24AS397446Midwest Fiber Network, LLCRPKI Not found167.142.97.0
- 167.142.99.0/24AS396443Western Iowa NetworksRPKI Valid167.142.99.0
- 167.142.100.0/24AS5056Aureon Network ServicesRPKI Not found167.142.100.0
- 167.142.101.0/24AS5056Aureon Network ServicesRPKI Not found167.142.101.0
- 167.142.104.0/24AS5056Aureon Network ServicesRPKI Not found167.142.104.0
- 167.142.105.0/24AS5056Aureon Network ServicesRPKI Not found167.142.105.0
- 167.142.107.0/24AS53347Premier CommunicationsRPKI Valid167.142.107.0
- 167.142.108.0/23AS18883FiberNet Communications L.C.RPKI Not found167.142.108.0
- 167.142.110.0/24AS5056Aureon Network ServicesRPKI Not found167.142.110.0
- 167.142.112.0/24AS5056Aureon Network ServicesRPKI Not found167.142.112.0
- 167.142.114.0/24AS19628Mahaska Communication Group, LLCRPKI Not found167.142.114.0
- 167.142.115.0/24AS19628Mahaska Communication Group, LLCRPKI Not found167.142.115.0
- 167.142.117.0/24AS397475F&B Communications, Inc.RPKI Not found167.142.117.0
- 167.142.122.0/24AS5056Aureon Network ServicesRPKI Not found167.142.122.0
- 167.142.123.0/24AS397016Hawkeye Telephone CompanyRPKI Not found167.142.123.0
- 167.142.132.0/22AS5056Aureon Network ServicesRPKI Not found167.142.132.0
- 167.142.144.0/22AS395876Huxley Communications CooperativeRPKI Not found167.142.144.0
- 167.142.149.0/24AS18883FiberNet Communications L.C.RPKI Not found167.142.149.0
- 167.142.153.0/24AS22534CS TechnologiesRPKI Not found167.142.153.0
- 167.142.155.0/24AS400706Heart of Iowa Communications CooperativeRPKI Not found167.142.155.0
- 167.142.162.0/24AS5056Aureon Network ServicesRPKI Not found167.142.162.0
- 167.142.163.0/24AS63152Cascade Communications CompanyRPKI Not found167.142.163.0
- 167.142.167.0/24AS397305FMCTCRPKI Not found167.142.167.0
- 167.142.172.0/24AS397446Midwest Fiber Network, LLCRPKI Not found167.142.172.0
- 167.142.179.0/24AS16612NEIT Services, LLCRPKI Not found167.142.179.0
- 167.142.181.0/24AS399559Alpine Communications L.C.RPKI Not found167.142.181.0
- 167.142.182.0/24AS63394Eastern Iowa IP, LLCRPKI Not found167.142.182.0
- 167.142.190.0/24AS400180The Farmers Mutual Telephone Company of Stanton, IowaRPKI Valid167.142.190.0
- 167.142.201.0/24AS46892Winnebago Cooperative Telecom AssociationRPKI Not found167.142.201.0
- 167.142.202.0/23AS396443Western Iowa NetworksRPKI Valid167.142.202.0
- 167.142.204.0/24AS396443Western Iowa NetworksRPKI Valid167.142.204.0
- 167.142.205.0/24AS396443Western Iowa NetworksRPKI Valid167.142.205.0
- 167.142.206.0/24AS396443Western Iowa NetworksRPKI Valid167.142.206.0
- 167.142.207.0/24AS55009Router12 Networks LLCRPKI Not found167.142.207.0
- 167.142.210.0/24AS5056Aureon Network ServicesRPKI Not found167.142.210.0
- 167.142.212.0/24AS5056Aureon Network ServicesRPKI Not found167.142.212.0
- 167.142.225.0/24AS5056Aureon Network ServicesRPKI Not found167.142.225.0
- 167.142.235.0/24AS20131McFarland Clinic PCRPKI Not found167.142.235.0
- 167.142.236.0/23AS5056Aureon Network ServicesRPKI Not found167.142.236.0
- 167.142.238.0/23AS46154Farmers Mutual Telephone CompanyRPKI Not found167.142.238.0
- 167.142.241.0/24AS53347Premier CommunicationsRPKI Valid167.142.241.0
- 167.142.243.0/24AS400045Dumont Telephone CompanyRPKI Not found167.142.243.0
- 167.142.247.0/24AS5056Aureon Network ServicesRPKI Not found167.142.247.0
- 167.142.248.0/23AS5056Aureon Network ServicesRPKI Not found167.142.248.0
- 167.142.250.0/24AS5056Aureon Network ServicesRPKI Not found167.142.250.0
- 167.142.252.0/24AS5056Aureon Network ServicesRPKI Not found167.142.252.0
- 167.142.254.0/24AS62825Walnut CommunicationsRPKI Not found167.142.254.0
- 167.142.255.0/24AS62825Walnut CommunicationsRPKI Not found167.142.255.0
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.