BGP Prefix Lookup
Enter a prefix (or a single address). Answered from our daily copy of the global routing table.
2001:978::/32
Announced exactly
- 2001:978::/32AS174Cogent Communications, LLCRPKI Not found2001:978::
- Registry
- RIPE NCC · United States · Oct 25, 2002
- Delegated block
- 2001:978:: – 2001:978:ffff:ffff:ffff:ffff:ffff:ffff
Covering routes
No less-specific route covers it.
More-specific routes
- 2001:978:900::/48AS47132Innonet ICT-Services GmbHRPKI Not found2001:978:900::
- 2001:978:90f::/48AS214319blackpoint GmbHRPKI Not found2001:978:90f::
- 2001:978:91b::/48AS136493Earth Network Technology (HongKong) Co., LimitedRPKI Not found2001:978:91b::
- 2001:978:b00::/48AS151690FAB FIVE NETWORK PRIVATE LIMITEDRPKI Valid2001:978:b00::
- 2001:978:b01::/48AS214432Zhilian Technology CO., LTD.RPKI Not found2001:978:b01::
- 2001:978:1001::/48AS199144HexCore cloud s.r.o.RPKI Not found2001:978:1001::
- 2001:978:1406::/48AS214432Zhilian Technology CO., LTD.RPKI Not found2001:978:1406::
- 2001:978:1407::/48AS213615ON DIVERSITY CLOUD EUROPE, S.L.RPKI Valid2001:978:1407::
- 2001:978:1b04::/47AS210743BABBAR SASRPKI Valid2001:978:1b04::
- 2001:978:1b04::/48AS210743BABBAR SASRPKI Valid2001:978:1b04::
- 2001:978:1b08::/48AS204902MARITIK SASURPKI Not found2001:978:1b08::
- 2001:978:1c00::/48AS214432Zhilian Technology CO., LTD.RPKI Not found2001:978:1c00::
- 2001:978:1d05::/48AS44788Criteo Technology SASRPKI Valid2001:978:1d05::
- 2001:978:1d06::/48AS44788Criteo Technology SASRPKI Valid2001:978:1d06::
- 2001:978:1f00::/48AS43858WEBAXYS SASRPKI Not found2001:978:1f00::
- 2001:978:2305::/48AS9009M247 Europe SRLRPKI Not found2001:978:2305::
- 2001:978:3301::/48AS209049MICHCOM LIMITEDRPKI Not found2001:978:3301::
- 2001:978:3400::/48AS9009M247 Europe SRLRPKI Not found2001:978:3400::
- 2001:978:3c05::/48AS213615ON DIVERSITY CLOUD EUROPE, S.L.RPKI Valid2001:978:3c05::
- 2001:978:3c0d::/48AS44788Criteo Technology SASRPKI Valid2001:978:3c0d::
- 2001:978:3c0e::/48AS44788Criteo Technology SASRPKI Valid2001:978:3c0e::
- 2001:978:3c0f::/48AS199144HexCore cloud s.r.o.RPKI Not found2001:978:3c0f::
- 2001:978:5203::/48AS209312Compass Education Holdings LimitedRPKI Not found2001:978:5203::
- 2001:978:6712::/48AS207866InCompanyMedia B.V.RPKI Not found2001:978:6712::
- 2001:978:7301::/48AS174Cogent Communications, LLCRPKI Not found2001:978:7301::
- 2001:978:9e01::/48AS198239OLLINK SARLRPKI Not found2001:978:9e01::
- 2001:978:a600::/48AS210058Amusnet Interactive LtdRPKI Not found2001:978:a600::
- 2001:978:a700::/48AS33811Digitas GmbHRPKI Not found2001:978:a700::
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.