BGP Prefix Lookup

Enter a prefix (or a single address). Answered from our daily copy of the global routing table.

Examples:

2605:1800::/32

One collector's view (APNIC). A route filtered before it reaches that collector is not listed.

Announced exactly

2605:1800::/32AS16863Home Telephone Company, Inc.RPKI Not found2605:1800::

Registry: ARIN · United States · Apr 27, 2010
Delegated block: 2605:1800:: – 2605:1800:ffff:ffff:ffff:ffff:ffff:ffff

Covering routes

No less-specific route covers it.

More-specific routes

75 more-specifics from 1 origin AS(es)

2605:1800:111::/48AS16863Home Telephone Company, Inc.RPKI Not found2605:1800:111::
2605:1800:112::/48AS16863Home Telephone Company, Inc.RPKI Not found2605:1800:112::
2605:1800:115::/48AS16863Home Telephone Company, Inc.RPKI Not found2605:1800:115::
2605:1800:311::/48AS16863Home Telephone Company, Inc.RPKI Not found2605:1800:311::
2605:1800:312::/48AS16863Home Telephone Company, Inc.RPKI Not found2605:1800:312::
2605:1800:315::/48AS16863Home Telephone Company, Inc.RPKI Not found2605:1800:315::
2605:1800:511::/48AS16863Home Telephone Company, Inc.RPKI Not found2605:1800:511::
2605:1800:512::/48AS16863Home Telephone Company, Inc.RPKI Not found2605:1800:512::
2605:1800:515::/48AS16863Home Telephone Company, Inc.RPKI Not found2605:1800:515::
2605:1800:711::/48AS16863Home Telephone Company, Inc.RPKI Not found2605:1800:711::
2605:1800:712::/48AS16863Home Telephone Company, Inc.RPKI Not found2605:1800:712::
2605:1800:715::/48AS16863Home Telephone Company, Inc.RPKI Not found2605:1800:715::
2605:1800:811::/48AS16863Home Telephone Company, Inc.RPKI Not found2605:1800:811::
2605:1800:812::/48AS16863Home Telephone Company, Inc.RPKI Not found2605:1800:812::
2605:1800:815::/48AS16863Home Telephone Company, Inc.RPKI Not found2605:1800:815::
2605:1800:911::/48AS16863Home Telephone Company, Inc.RPKI Not found2605:1800:911::
2605:1800:912::/48AS16863Home Telephone Company, Inc.RPKI Not found2605:1800:912::
2605:1800:915::/48AS16863Home Telephone Company, Inc.RPKI Not found2605:1800:915::
2605:1800:2011::/48AS16863Home Telephone Company, Inc.RPKI Not found2605:1800:2011::
2605:1800:2012::/48AS16863Home Telephone Company, Inc.RPKI Not found2605:1800:2012::
2605:1800:2015::/48AS16863Home Telephone Company, Inc.RPKI Not found2605:1800:2015::
2605:1800:2111::/48AS16863Home Telephone Company, Inc.RPKI Not found2605:1800:2111::
2605:1800:2112::/48AS16863Home Telephone Company, Inc.RPKI Not found2605:1800:2112::
2605:1800:2115::/48AS16863Home Telephone Company, Inc.RPKI Not found2605:1800:2115::
2605:1800:2211::/48AS16863Home Telephone Company, Inc.RPKI Not found2605:1800:2211::
2605:1800:2212::/48AS16863Home Telephone Company, Inc.RPKI Not found2605:1800:2212::
2605:1800:2215::/48AS16863Home Telephone Company, Inc.RPKI Not found2605:1800:2215::
2605:1800:2411::/48AS16863Home Telephone Company, Inc.RPKI Not found2605:1800:2411::
2605:1800:2412::/48AS16863Home Telephone Company, Inc.RPKI Not found2605:1800:2412::
2605:1800:2415::/48AS16863Home Telephone Company, Inc.RPKI Not found2605:1800:2415::
2605:1800:2611::/48AS16863Home Telephone Company, Inc.RPKI Not found2605:1800:2611::
2605:1800:2612::/48AS16863Home Telephone Company, Inc.RPKI Not found2605:1800:2612::
2605:1800:2615::/48AS16863Home Telephone Company, Inc.RPKI Not found2605:1800:2615::
2605:1800:3211::/48AS16863Home Telephone Company, Inc.RPKI Not found2605:1800:3211::
2605:1800:3212::/48AS16863Home Telephone Company, Inc.RPKI Not found2605:1800:3212::
2605:1800:3215::/48AS16863Home Telephone Company, Inc.RPKI Not found2605:1800:3215::
2605:1800:3411::/48AS16863Home Telephone Company, Inc.RPKI Not found2605:1800:3411::
2605:1800:3412::/48AS16863Home Telephone Company, Inc.RPKI Not found2605:1800:3412::
2605:1800:3415::/48AS16863Home Telephone Company, Inc.RPKI Not found2605:1800:3415::
2605:1800:3611::/48AS16863Home Telephone Company, Inc.RPKI Not found2605:1800:3611::
2605:1800:3612::/48AS16863Home Telephone Company, Inc.RPKI Not found2605:1800:3612::
2605:1800:3615::/48AS16863Home Telephone Company, Inc.RPKI Not found2605:1800:3615::
2605:1800:4011::/48AS16863Home Telephone Company, Inc.RPKI Not found2605:1800:4011::
2605:1800:4012::/48AS16863Home Telephone Company, Inc.RPKI Not found2605:1800:4012::
2605:1800:4015::/48AS16863Home Telephone Company, Inc.RPKI Not found2605:1800:4015::
2605:1800:4211::/48AS16863Home Telephone Company, Inc.RPKI Not found2605:1800:4211::
2605:1800:4212::/48AS16863Home Telephone Company, Inc.RPKI Not found2605:1800:4212::
2605:1800:4215::/48AS16863Home Telephone Company, Inc.RPKI Not found2605:1800:4215::
2605:1800:4311::/48AS16863Home Telephone Company, Inc.RPKI Not found2605:1800:4311::
2605:1800:4312::/48AS16863Home Telephone Company, Inc.RPKI Not found2605:1800:4312::
2605:1800:4315::/48AS16863Home Telephone Company, Inc.RPKI Not found2605:1800:4315::
2605:1800:4511::/48AS16863Home Telephone Company, Inc.RPKI Not found2605:1800:4511::
2605:1800:4512::/48AS16863Home Telephone Company, Inc.RPKI Not found2605:1800:4512::
2605:1800:4515::/48AS16863Home Telephone Company, Inc.RPKI Not found2605:1800:4515::
2605:1800:4611::/48AS16863Home Telephone Company, Inc.RPKI Not found2605:1800:4611::
2605:1800:4612::/48AS16863Home Telephone Company, Inc.RPKI Not found2605:1800:4612::
2605:1800:4615::/48AS16863Home Telephone Company, Inc.RPKI Not found2605:1800:4615::
2605:1800:4711::/48AS16863Home Telephone Company, Inc.RPKI Not found2605:1800:4711::
2605:1800:4712::/48AS16863Home Telephone Company, Inc.RPKI Not found2605:1800:4712::
2605:1800:4715::/48AS16863Home Telephone Company, Inc.RPKI Not found2605:1800:4715::
2605:1800:4811::/48AS16863Home Telephone Company, Inc.RPKI Not found2605:1800:4811::
2605:1800:4812::/48AS16863Home Telephone Company, Inc.RPKI Not found2605:1800:4812::
2605:1800:4815::/48AS16863Home Telephone Company, Inc.RPKI Not found2605:1800:4815::
2605:1800:6811::/48AS16863Home Telephone Company, Inc.RPKI Not found2605:1800:6811::
2605:1800:6812::/48AS16863Home Telephone Company, Inc.RPKI Not found2605:1800:6812::
2605:1800:6815::/48AS16863Home Telephone Company, Inc.RPKI Not found2605:1800:6815::
2605:1800:6911::/48AS16863Home Telephone Company, Inc.RPKI Not found2605:1800:6911::
2605:1800:6912::/48AS16863Home Telephone Company, Inc.RPKI Not found2605:1800:6912::
2605:1800:6915::/48AS16863Home Telephone Company, Inc.RPKI Not found2605:1800:6915::
2605:1800:7211::/48AS16863Home Telephone Company, Inc.RPKI Not found2605:1800:7211::
2605:1800:7212::/48AS16863Home Telephone Company, Inc.RPKI Not found2605:1800:7212::
2605:1800:7215::/48AS16863Home Telephone Company, Inc.RPKI Not found2605:1800:7215::
2605:1800:7411::/48AS16863Home Telephone Company, Inc.RPKI Not found2605:1800:7411::
2605:1800:7412::/48AS16863Home Telephone Company, Inc.RPKI Not found2605:1800:7412::
2605:1800:7415::/48AS16863Home Telephone Company, Inc.RPKI Not found2605:1800:7415::

On the internet, routes are announced as prefixes: an autonomous system tells its neighbours via BGP that it can deliver traffic for, say, 62.103.0.0/16. 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.

Frequently asked questions

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