subnet.im

103.51.89.0/24

At a glance

Addresses

256

/24 block

Visibility

100%

81 of 81 vantage points

RPKI

Valid

Registry

APNICTW

Allocated 8th December 2022

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 103.51.89.0/24 as seen from Sao Paulo, read outward from the origin: AS197537 → AS131630 → AS131657 → AS18423 → AS9002 → AS6453 → AS35280. Each hop is listed with its network name beneath the graph.AS197537Wisdom Cloud Inte…OriginAS131630Lazco CorporationAS131657Hong Da Storage E…AS18423RAID Networks Co.…AS9002RETN LimitedAS6453TATA Communicatio…AS35280F5 Networks SARL

Seen from Sao Paulo

  1. Peer of AS197537seen on 648 paths from 81 vantage points
  2. Peer of AS131630seen on 628 paths from 83 vantage points
  3. Peer of AS131657seen on 952 paths from 112 vantage points
  4. Peer of AS18423seen on 3,053 paths from 128 vantage points
  5. Peer of AS9002seen on 220,245 paths from 29 vantage points
  6. Peer of AS6453seen on 666,707 paths from 6 vantage points
  7. 7AS35280F5 Networks SARLFRVantage point

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. Oregon, US197537131630693920130This path
  2. Singapore197537131630131657184239002132337This path
  3. Amsterdam197537131630131657184239002250918298This path
  4. London, UK197537131630131657184239002129935280This path
  5. Sao Paulo197537131630131657184239002645335280Shown above

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 81 of 81 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
APNIC — Asia-Pacific
Country
Taiwan
Allocated
8th December 2022
Allocation block
103.51.88.0/23
Status
allocated
Origin validation
Valid

A ROA exists that authorises this origin AS to announce this prefix at this length.

ROAs covering this prefix

Route Origin Authorisations covering 103.51.89.0/24
ROA prefixAuthorised originMax length
103.51.89.0/24AS197537/24
103.51.89.0/24AS202736/24
103.51.89.0/24AS216138/24
103.51.89.0/24AS396982/32
103.51.88.0/23AS131630/24
103.51.88.0/23AS131657/32
103.51.88.0/23AS134823/32

Prefix hierarchy

Announcements above, below and beside this one in the real routing table.

CoveringMore specific
Prefix hierarchy for 103.51.89.0/24: the announcements covering it on the left, the announcements inside it on the right. Every prefix drawn is also listed in the tables below.103.51.88.0/23AS131630103.51.89.0/24AS197537This prefix103.51.88.0/24AS197537

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

Announcements that contain 103.51.89.0/24
PrefixAddressesOriginVisibility
103.51.88.0/23512AS131630Lazco Corporation80/81

More specific announcements

Nothing inside this block is announced separately.

Sibling prefixes

Prefixes of the same length sharing a parent block with 103.51.89.0/24
PrefixAddressesOriginVisibility
103.51.88.0/24256AS197537Wisdom Cloud Internet Technology Pte. Ltd.81/81

History

  1. AS19753722nd September 2026 — present
  2. AS39698212th August 2026 — 21st September 2026
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 103.51.89.0/24 in the calculator/24 reference

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