subnet.im

87.236.121.0/24

At a glance

Addresses

256

/24 block

Visibility

100%

80 of 80 vantage points

RPKI

No ROA

Registry

RIPE NCCKW

Allocated 8th May 2008

AS paths to this prefix

All paths

One observed path, hop by hop, from the origin out to Sao Paulo.

OriginVantage point · Sao Paulo
One AS path to 87.236.121.0/24 as seen from Sao Paulo, read outward from the origin: AS41576 → AS21050 → AS43852 → AS29357 → AS3356 → AS266213. Each hop is listed with its network name beneath the graph.AS41576KFIC invest Compa…OriginAS21050Fast Communicatio…AS43852Fast Communicatio…AS29357OOredOO Kuwait NM…AS3356Lumen (Level 3)AS266213PLANETCLICK TELEC…

Seen from Sao Paulo

  1. Peer of AS41576seen on 160 paths from 80 vantage points
  2. Peer of AS21050seen on 29,464 paths from 115 vantage points
  3. Peer of AS43852seen on 27,115 paths from 80 vantage points
  4. Peer of AS29357seen on 6,059 paths from 108 vantage points
  5. Peer of AS3356seen on 997,311 paths from 2 vantage points

One 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

  1. London, UK41576210508529This path
  2. Sao Paulo415762105043852293573356266213Shown above
  3. Singapore4157621050438522935715412132337This path
  4. Amsterdam41576210504385229357154126939213151This path
  5. Oregon, US4157621050438522935715412693920130This 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 80 of 80 full-feed vantage points

Globally propagated

Observed 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
Kuwait
Allocated
8th May 2008
Allocation block
87.236.120.0/21
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

Prefixes of the same length sharing a parent block with 87.236.121.0/24
PrefixAddressesOriginVisibility
87.236.120.0/24256AS41576KFIC invest Company KSC80/80

History

  1. AS4157612th August 2026 present
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 87.236.121.0/24 in the calculator/24 reference

Routing data derived from RouteViews MRT archives and public registry data.