205.237.89.0/24
At a glance
Addresses
/24 block
Visibility
76 of 76 vantage points
RPKI
Registry
USAllocated 14th October 2008
AS paths to this prefix
All pathsOne observed path, hop by hop, from the origin out to Amsterdam.
Seen from Amsterdam
- Peer of AS139642seen on 531 paths from 76 vantage points
- Peer of AS401322seen on 983 paths from 39 vantage points
- Peer of AS21859seen on 5,029 paths from 106 vantage points
- Peer of AS6461seen on 133,821 paths from 5 vantage points
- Peer of AS25091seen on 666,136 paths from 2 vantage points
BD
CHOne 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 Paulo1396424013222185935280This path
- London, UK139642401322422912998529This path
- Singapore1396424013224229291423673This path
- Amsterdam139642401322218596461250918298Shown above
- Oregon, US139642401322218596461693920130This 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
100%
Seen by 76 of 76 full-feed vantage points
Globally 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
- RIPE NCC — Europe, Middle East, Central Asia
- Country
- United States
- Allocated
- 14th October 2008
- Allocation block
- 205.237.88.0/21
- Status
- allocated
- Origin validation
- Valid
A ROA exists that authorises this origin AS to announce this prefix at this length.
Prefix hierarchy
Announcements above, below and beside this one in the real routing table.
Left to right is specificity: a shorter mask covering more address space, then this prefix, then the announcements carved out inside it. Only the first few of each are drawn — the tables below list them all.
Covering announcements
| Prefix | Addresses | Origin | Visibility |
|---|---|---|---|
| 205.237.88.0/21 | 2k | AS21769Colocation America Corporation | 75/76 |
More specific announcements
Nothing inside this block is announced separately.
Sibling prefixes
| Prefix | Addresses | Origin | Visibility |
|---|---|---|---|
| 205.237.88.0/24 | 256 | AS152726Dream Engineering | 76/76 |
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 205.237.89.0/24 in the calculator/24 reference
Routing data derived from RouteViews MRT archives and public registry data.