240e:1a::/35
At a glance
Subnets
/35 block
Visibility
61 of 62 vantage points
RPKI
Registry
CNAllocated 20th May 2010
AS paths to this prefix
All pathsOne observed path, hop by hop, from the origin out to Singapore.
Seen from Singapore
- Peer of AS23650seen on 11,928 paths from 141 vantage points
- Peer of AS4134seen on 105,607 paths from 25 vantage points
- Peer of AS6939seen on 320,794 paths from 2 vantage points
US
SGOne 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
- Amsterdam23650413434549213151This path
- Sao Paulo2365041341295632590This path
- Singapore2365041346939132337Shown above
- London, UK23650413433561557651907This 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
98%
Seen by 61 of 62 full-feed vantage points
Globally propagatedObserved at 4 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
- 20th May 2010
- Allocation block
- 240e::/24
- Status
- allocated
- Origin validation
- Valid
A ROA exists that authorises this origin AS to announce this prefix at this length.
ROAs covering this prefix
| ROA prefix | Authorised origin | Max length |
|---|---|---|
| 240e:1a::/35 | AS23650 | /35 |
Prefix hierarchy
Announcements above, below and beside this one in the real routing table.
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
| Prefix | Addresses | Origin | Visibility |
|---|---|---|---|
| 240e::/24 | 1.1T × /64 | AS4134China Telecom Backbone | 61/62 |
| 240e::/20 | 17.6T × /64 | AS4134China Telecom Backbone | 59/62 |
More specific announcements
| Prefix | Addresses | Origin | Visibility |
|---|---|---|---|
| 240e:1a:10::/44 | 1M × /64 | AS137702China Telecom Nanjing IDC Network | 61/62 |
| 240e:1a:30::/44 | 1M × /64 | AS138950China Telecom Wuxi IDC Network | 61/62 |
| 240e:1a:40::/44 | 1M × /64 | AS137702China Telecom Nanjing IDC Network | 61/62 |
| 240e:1a:50::/44 | 1M × /64 | AS140292China Telecom Jiangsu Province Suzhou Network | 61/62 |
| 240e:1a:70::/44 | 1M × /64 | AS131325CHINATELECOM JIANGSU province NANTONG MAN network | 61/62 |
| 240e:1a:110::/44 | 1M × /64 | AS134769ChinaNet Jiangsu Changzhou Liyang IDC network | 61/62 |
| 240e:1a:120::/44 | 1M × /64 | AS134756CHINANET Nanjing Jishan IDC network | 61/62 |
| 240e:1a:140::/44 | 1M × /64 | AS140293CHINATELECOM Jiangsu province Changzhou 5G network | 61/62 |
| 240e:1a:150::/44 | 1M × /64 | AS134770CHINANET Jiangsu province Suzhou taihu IDC network | 61/62 |
| 240e:1a:160::/44 | 1M × /64 | AS146966China Telecom | 61/62 |
Sibling prefixes
No prefix of the same length in the same parent block is announced.
History
- AS2365012th 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.
Routing data derived from RouteViews MRT archives and public registry data.