31.77.100.0/24
At a glance
Addresses
/24 block
Visibility
76 of 76 vantage points
RPKI
Registry
USAllocated 25th November 2010
AS paths to this prefix
All pathsOne observed path, hop by hop, from the origin out to Singapore.
Seen from Singapore
- Peer of AS218239seen on 455 paths from 137 vantage points
- Peer of AS49581seen on 41,823 paths from 126 vantage points
- Peer of AS44592seen on 5,323 paths from 62 vantage points
- Peer of AS64289seen on 5,015 paths from 89 vantage points
- Peer of AS8220seen on 2,027 paths from 2 vantage points
GB
DE
NL
KHOne 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
- Amsterdam21823949581445928298This path
- London, UK21823949581445928529This path
- Sao Paulo2182394958144592645335280This path
- Singapore218239495814459264289822023673Shown above
- Oregon, US218239495814459233891855142013This 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
- 25th November 2010
- Allocation block
- 31.76.0.0/15
- 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.
Covering announcements
No less specific announcement covers this prefix.
More specific announcements
Nothing inside this block is announced separately.
Sibling prefixes
| Prefix | Addresses | Origin | Visibility |
|---|---|---|---|
| 31.77.101.0/24 | 256 | AS401152Ace Data Centers II, L.L.C. | 75/76 |
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 31.77.100.0/24 in the calculator/24 reference
Routing data derived from RouteViews MRT archives and public registry data.