SUBNET.IM

203.119.28.0/24

China Internet Network Infomation CenterAS24151

China Internet Network Infomation CenterAS24406

China Internet Network Infomation CenterAS24409

Announced by more than one origin AS (MOAS).

At a glance

Addresses

256

/24 block

Visibility

40%

32 of 80 vantage points

RPKI

No ROA

Registry

APNICCN

Allocated 21st April 2004

AS paths to this prefix

One real path per vantage point, fanning out from the origin. Where two reach the prefix the same way, those hops are drawn once. Open a path to follow it hop by hop.

OriginVantage points
AS path graph: 5 observed paths to 203.119.28.0/24, fanning out from AS24151, AS24406 toward the vantage points that see it. Each path is written out in full beneath the graph.AS24406China Internet Ne…OriginAS21859Zenlayer IncAS8529Zain Omantel Inte…AS132337AxclusiveAS24151China Internet Ne…OriginAS1280Internet Systems …AS6939Hurricane Electri…AS213151Christian ElsenAS266213PLANETCLICK TELEC…AS20130Depaul University
  1. London, UK24406218598529This path
  2. Singapore2440621859132337This path
  3. Amsterdam2415112806939213151This path
  4. Sao Paulo2415112806939266213This path
  5. Oregon, US241511280693920130This 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

40%

Seen by 32 of 80 full-feed vantage points

Partially 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
APNIC — Asia-Pacific
Country
China
Allocated
21st April 2004
Allocation block
203.119.24.0/21
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 203.119.28.0/24
PrefixAddressesOriginVisibility
203.119.29.0/24256AS24151China Internet Network Infomation Center11/80
203.119.29.0/24256AS24409China Internet Network Infomation Center49/80
203.119.29.0/24256AS24406China Internet Network Infomation Center20/80

History

  1. AS2440612th August 2026 — present
  2. AS2415112th August 2026 — present
  3. AS2440912th 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 203.119.28.0/24 in the calculator/24 reference

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