BGP Prefix Lookup
Enter a prefix (or a single address). Answered from our daily copy of the global routing table.
178.156.0.0/17
Announced exactly
- 178.156.0.0/17AS29119AIRE NETWORKS DEL MEDITERRANEO SL UNIPERSONALRPKI Valid178.156.0.0
- Registry
- RIPE NCC · Spain · Jun 2, 2010
- Delegated block
- 178.156.0.0 – 178.156.127.255
Covering routes
No less-specific route covers it.
More-specific routes
- 178.156.8.0/21AS29119AIRE NETWORKS DEL MEDITERRANEO SL UNIPERSONALRPKI Valid178.156.8.0
- 178.156.16.0/22AS29119AIRE NETWORKS DEL MEDITERRANEO SL UNIPERSONALRPKI Valid178.156.16.0
- 178.156.20.0/23AS29119AIRE NETWORKS DEL MEDITERRANEO SL UNIPERSONALRPKI Valid178.156.20.0
- 178.156.22.0/24AS207944CAPETA-SYSTEM, S.L.RPKI Valid178.156.22.0
- 178.156.24.0/23AS29119AIRE NETWORKS DEL MEDITERRANEO SL UNIPERSONALRPKI Valid178.156.24.0
- 178.156.24.0/24AS203600VIVAFIBRA TELECOMUNICACIONES, S.L.RPKI Valid178.156.24.0
- 178.156.25.0/24AS60508T.V.C. PINOS PUENTE SLRPKI Valid178.156.25.0
- 178.156.29.0/24AS29119AIRE NETWORKS DEL MEDITERRANEO SL UNIPERSONALRPKI Valid178.156.29.0
- 178.156.32.0/23AS29119AIRE NETWORKS DEL MEDITERRANEO SL UNIPERSONALRPKI Valid178.156.32.0
- 178.156.36.0/22AS29119AIRE NETWORKS DEL MEDITERRANEO SL UNIPERSONALRPKI Valid178.156.36.0
- 178.156.38.0/24AS200030Dvblab Communication SLRPKI Valid178.156.38.0
- 178.156.39.0/24AS29119AIRE NETWORKS DEL MEDITERRANEO SL UNIPERSONALRPKI Valid178.156.39.0
- 178.156.42.0/23AS29119AIRE NETWORKS DEL MEDITERRANEO SL UNIPERSONALRPKI Valid178.156.42.0
- 178.156.44.0/22AS29119AIRE NETWORKS DEL MEDITERRANEO SL UNIPERSONALRPKI Valid178.156.44.0
- 178.156.47.0/24AS29119AIRE NETWORKS DEL MEDITERRANEO SL UNIPERSONALRPKI Valid178.156.47.0
- 178.156.48.0/22AS29119AIRE NETWORKS DEL MEDITERRANEO SL UNIPERSONALRPKI Valid178.156.48.0
- 178.156.56.0/22AS29119AIRE NETWORKS DEL MEDITERRANEO SL UNIPERSONALRPKI Valid178.156.56.0
- 178.156.57.0/24AS50563Onlycable Comunicaciones S.L.RPKI Valid178.156.57.0
- 178.156.64.0/21AS29119AIRE NETWORKS DEL MEDITERRANEO SL UNIPERSONALRPKI Valid178.156.64.0
- 178.156.72.0/22AS29119AIRE NETWORKS DEL MEDITERRANEO SL UNIPERSONALRPKI Valid178.156.72.0
- 178.156.76.0/22AS29119AIRE NETWORKS DEL MEDITERRANEO SL UNIPERSONALRPKI Valid178.156.76.0
- 178.156.78.0/24AS29119AIRE NETWORKS DEL MEDITERRANEO SL UNIPERSONALRPKI Valid178.156.78.0
- 178.156.86.0/24AS199952AVATEL TELECOM, SARPKI Valid178.156.86.0
- 178.156.91.0/24AS199952AVATEL TELECOM, SARPKI Valid178.156.91.0
- 178.156.93.0/24AS211261Fibranet Tecnologia y Sistemas SLRPKI Valid178.156.93.0
- 178.156.98.0/23AS29119AIRE NETWORKS DEL MEDITERRANEO SL UNIPERSONALRPKI Valid178.156.98.0
- 178.156.104.0/23AS29119AIRE NETWORKS DEL MEDITERRANEO SL UNIPERSONALRPKI Valid178.156.104.0
- 178.156.106.0/23AS29119AIRE NETWORKS DEL MEDITERRANEO SL UNIPERSONALRPKI Valid178.156.106.0
- 178.156.106.0/24AS203600VIVAFIBRA TELECOMUNICACIONES, S.L.RPKI Valid178.156.106.0
- 178.156.108.0/22AS29119AIRE NETWORKS DEL MEDITERRANEO SL UNIPERSONALRPKI Valid178.156.108.0
- 178.156.112.0/24AS211261Fibranet Tecnologia y Sistemas SLRPKI Valid178.156.112.0
- 178.156.113.0/24AS211261Fibranet Tecnologia y Sistemas SLRPKI Valid178.156.113.0
- 178.156.116.0/22AS29119AIRE NETWORKS DEL MEDITERRANEO SL UNIPERSONALRPKI Valid178.156.116.0
- 178.156.121.0/24AS50563Onlycable Comunicaciones S.L.RPKI Valid178.156.121.0
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.