147.104.48.0/24
At a glance
Addresses
/24 block
Visibility
62 of 77 vantage points
RPKI
Registry
USAllocated 13th March 1991
AS paths to this prefix
All pathsOne observed path, hop by hop, from the origin out to Singapore.
Seen from Singapore
- Peer of AS1501seen on 10,686 paths from 77 vantage points
- Peer of AS1555seen on 10,840 paths from 77 vantage points
- Peer of AS1554seen on 15,691 paths from 77 vantage points
- Peer of AS1540seen on 53,779 paths from 140 vantage points
- Peer of AS27065seen on 99,061 paths from 140 vantage points
- Peer of AS721seen on 1,011,584 paths from 140 vantage points
- Peer of AS3356seen on 423,994 paths from 2 vantage points
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
- Amsterdam150115551554154027065721335625091→ ⋯This path
- London, UK15011555155415402706572133568529This path
- Sao Paulo150115551554154027065721335635280This path
- Singapore150115551554154027065721335623673Shown above
- Oregon, US15011555155415402706572133566939→ ⋯This 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
81%
Seen by 62 of 77 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
- 13th March 1991
- Allocation block
- 147.104.0.0/16
- 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 147.104.48.0/24 in the calculator/24 reference
Routing data derived from RouteViews MRT archives and public registry data.