204.77.171.0/24
At a glance
Addresses
/24 block
Visibility
71 of 80 vantage points
RPKI
Registry
USAllocated 29th September 2011
AS paths to this prefix
All pathsOne observed path, hop by hop, from the origin out to Amsterdam.
Seen from Amsterdam
- Peer of AS53291seen on 141 paths from 71 vantage points
- Peer of AS33287seen on 28,539 paths from 142 vantage points
- Peer of AS7922seen on 20,108 paths from 41 vantage points
- Peer of AS174seen on 181,897 paths from 3 vantage points
- Peer of AS34549seen on 716,762 paths from 2 vantage points
DEOne path, hop by hop, from the origin outward to the vantage point that saw it. Counts beside each step are how often we see that pair adjacent anywhere in the table, not how often this path was used — BGP carries no traffic figures.
Every path we see
- Sao Paulo2652170293356266213This path
- London, UK5329133287792264538529This path
- Oregon, US53291332877922693920130This path
- Amsterdam5329133287792217434549213151Shown above
- Singapore5329133287792264539002132337This path
Each row is one path genuinely present in the routing table at our last snapshot, read outward from the origin to the vantage point that saw it. Open a row to follow that one path hop by hop. A heavier line in the graph means more vantage points reach the prefix that same way.
Route visibility
89%
Seen by 71 of 80 full-feed vantage points
Partially propagatedObserved at 5 of our collectors.
What this percentage counts
The denominator counts only full-feed peers — peers carrying a substantially complete routing table at the moment of the snapshot. IXP route-server peers usually feed partial tables and are excluded, because including them would make a normally propagated prefix look as though half the internet could not see it.
It measures how widely an announcement has spread across the networks we can observe. It says nothing about whether the prefix is reachable from any particular place, or how it performs.
Registry and RPKI
- RIR
- ARIN — North America
- Country
- United States
- Allocated
- 29th September 2011
- Allocation block
- 204.77.171.0/24
- Status
- allocated
- Origin validation
- No ROA
No ROA covers this prefix, so RPKI has nothing to say about it either way. This is still the common case for a large share of the routing table.
Prefix hierarchy
Announcements above, below and beside this one in the real routing table.
Covering announcements
No less specific announcement covers this prefix.
More specific announcements
Nothing inside this block is announced separately.
Sibling prefixes
No prefix of the same length in the same parent block is announced.
History
Why these dates start where they do
A first-seen date is the first time we saw that origin, not the first time it appeared in BGP. Our history is forward-only with no backfill, so it says nothing about the period before we started collecting — treat the earliest dates with suspicion.
Open 204.77.171.0/24 in the calculator/24 reference
Routing data derived from RouteViews MRT archives and public registry data.