AS9255Singapore Telecom
As of 12th November 2026, AS9255 (Singapore Telecom), a network registered in Singapore with APNIC, originates 40 IPv4 prefixes covering 25.6k addresses and 53 IPv6 prefixes. By IPv4 address space that makes it the 6,235th-largest of the 80,772 networks we see originating IPv4, and the 50th-largest of 450 in Singapore. It is seen behind 2 upstream networks, most often AS3758 (SingNet) and AS18106 (Viewqwest Pte Ltd), and in front of 39 downstream networks. 77% of its announcements have a valid RPKI ROA; 8 are RPKI-invalid. 91% of its routes reach at least 90% of full-feed peers.
At a glance
IPv4 prefixes
IPv6 prefixes
IPv4 addresses
IPv6 /64s
Upstream graph
The networks AS9255 is seen behind, one and two hops out, drawn from real AS paths.
Networks observed one and two hops upstream of AS9255 in real AS paths. A thicker line means more vantage points saw that adjacency, so weight tracks how well attested it is — not how much traffic it carries. Adjacency is an observation; whether it is a transit purchase or a settlement-free peering is an inference, and is labelled as one wherever we show it.
Neighbouring networks
82
adjacent networks
- Upstreams
- 22%
- Peers
- 4150%
- Downstreams
- 3948%
Networks carrying this one's traffic toward the rest of the internet.
| Network | Country | Relationship | Paths | Vantage pts |
|---|---|---|---|---|
| AS3758SingNet | Peer | 9,020 | 142 | |
| AS18106Viewqwest Pte Ltd | Peer | 2 | 1 |
Prefixes
All 93The largest blocks AS9255 originates, widest first.
| Prefix | Addresses | Visibility |
|---|---|---|
| 118.201.16.0/20 | 4.1k | 78/78 |
| 151.192.0.0/21 | 2k | 78/78 |
| 151.192.8.0/21 | 2k | 78/78 |
| 151.192.16.0/21 | 2k | 78/78 |
| 151.192.24.0/21 | 2k | 78/78 |
| 151.192.32.0/21 | 2k | 78/78 |
| 118.201.12.0/22 | 1k | 78/78 |
| 128.106.84.0/22 | 1k | 78/78 |
| 138.103.32.0/22 | 1k | 78/78 |
| 128.106.156.0/23 | 512 | 78/78 |
Routing health
How AS9255's own announcements validate against RPKI and how far they propagate. The same measures for the whole routing table are on the routing table in numbers.
RPKI origin validation
- Valid77.4%72
- Invalid8.6%8
- No ROA14.0%13
Propagation
- Globally propagated90% of full-feed peers or more91.4%85
- Partially propagated40% to 90%0.0%0
- Seen by few peersUnder 40%8.6%8
Prefix sizes
IPv4 — 40 prefixes
IPv6 — 53 prefixes
- /4865.5k × /6498.1%52
- /49 and longerAggregated1.9%1
Recent changes
Announcements that started or stopped since 13th Oct 2026.
- Announced103.108.252.0/245th Nov 2026
- Withdrawn103.108.252.0/243rd Nov 2026
- Withdrawn2001:c20:489a::/482nd Nov 2026
- Announced2001:c20:48db::/481st Nov 2026
- Withdrawn2001:c20:48db::/4831st Oct 2026
Routing data derived from RouteViews MRT archives, BGPKIT relationship inference and public registry data.