BGP Prefix Lookup
Enter a prefix (or a single address). Answered from our daily copy of the global routing table.
2403:6200::/32
Announced exactly
- 2403:6200::/32AS45758Triple T Broadband Public Company LimitedRPKI Valid2403:6200::
- Registry
- APNIC · Thailand · Jul 14, 2010
- Delegated block
- 2403:6200:: – 2403:6200:ffff:ffff:ffff:ffff:ffff:ffff
Covering routes
No less-specific route covers it.
More-specific routes
- 2403:6200:7926::/48AS140725Thai Customs DepartmentRPKI Valid2403:6200:7926::
- 2403:6200:792c::/48AS55451Office of the National Broadcasting andRPKI Valid2403:6200:792c::
- 2403:6200:880a::/48AS138524Triple T Broadband Public Company LimitedRPKI Valid2403:6200:880a::
- 2403:6200:8810::/44AS45758Triple T Broadband Public Company LimitedRPKI Valid2403:6200:8810::
- 2403:6200:8820::/44AS45758Triple T Broadband Public Company LimitedRPKI Valid2403:6200:8820::
- 2403:6200:8822::/48AS138524Triple T Broadband Public Company LimitedRPKI Valid2403:6200:8822::
- 2403:6200:8825::/48AS138524Triple T Broadband Public Company LimitedRPKI Valid2403:6200:8825::
- 2403:6200:8826::/48AS138524Triple T Broadband Public Company LimitedRPKI Valid2403:6200:8826::
- 2403:6200:8830::/44AS45758Triple T Broadband Public Company LimitedRPKI Valid2403:6200:8830::
- 2403:6200:8840::/44AS45758Triple T Broadband Public Company LimitedRPKI Valid2403:6200:8840::
- 2403:6200:8841::/48AS138524Triple T Broadband Public Company LimitedRPKI Valid2403:6200:8841::
- 2403:6200:8843::/48AS138524Triple T Broadband Public Company LimitedRPKI Valid2403:6200:8843::
- 2403:6200:8847::/48AS138524Triple T Broadband Public Company LimitedRPKI Valid2403:6200:8847::
- 2403:6200:8850::/44AS45758Triple T Broadband Public Company LimitedRPKI Valid2403:6200:8850::
- 2403:6200:8860::/44AS45758Triple T Broadband Public Company LimitedRPKI Valid2403:6200:8860::
- 2403:6200:8870::/44AS45758Triple T Broadband Public Company LimitedRPKI Valid2403:6200:8870::
- 2403:6200:8870::/48AS138524Triple T Broadband Public Company LimitedRPKI Valid2403:6200:8870::
- 2403:6200:8873::/48AS138524Triple T Broadband Public Company LimitedRPKI Valid2403:6200:8873::
- 2403:6200:8878::/48AS138524Triple T Broadband Public Company LimitedRPKI Valid2403:6200:8878::
- 2403:6200:8880::/44AS45758Triple T Broadband Public Company LimitedRPKI Valid2403:6200:8880::
- 2403:6200:8880::/48AS138524Triple T Broadband Public Company LimitedRPKI Valid2403:6200:8880::
- 2403:6200:8881::/48AS138524Triple T Broadband Public Company LimitedRPKI Valid2403:6200:8881::
- 2403:6200:8882::/48AS138524Triple T Broadband Public Company LimitedRPKI Valid2403:6200:8882::
- 2403:6200:8883::/48AS138524Triple T Broadband Public Company LimitedRPKI Valid2403:6200:8883::
- 2403:6200:8886::/48AS138524Triple T Broadband Public Company LimitedRPKI Valid2403:6200:8886::
- 2403:6200:8887::/48AS138524Triple T Broadband Public Company LimitedRPKI Valid2403:6200:8887::
- 2403:6200:8888::/48AS138524Triple T Broadband Public Company LimitedRPKI Valid2403:6200:8888::
- 2403:6200:8890::/44AS45758Triple T Broadband Public Company LimitedRPKI Valid2403:6200:8890::
- 2403:6200:88a0::/44AS45758Triple T Broadband Public Company LimitedRPKI Valid2403:6200:88a0::
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.