AS139657University of the Thai Chamber of Commerce
ThailandRegistryAPNICAs of 23rd October 2026, AS139657 (University of the Thai Chamber of…), a network registered in Thailand with APNIC, originates 5 IPv4 prefixes covering 4.1k addresses and 1 IPv6 prefix. By IPv4 address space that makes it the 17,060th-largest of the 79,666 networks we see originating IPv4, and the 94th-largest of 454 in Thailand. It is seen behind 2 upstream networks, most often AS7470 (TRUE INTERNET Co.,Ltd.) and AS4621 (UniNet Thailand). None of its announcements have a valid RPKI ROA; 1 is RPKI-invalid. 83% 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 AS139657 is seen behind, one and two hops out, drawn from real AS paths.
Networks observed one and two hops upstream of AS139657 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
7
adjacent networks
- Upstreams
- 229%
- Peers
- 571%
- Downstreams
- 00%
Networks carrying this one's traffic toward the rest of the internet.
| Network | Country | Relationship | Paths | Vantage pts |
|---|---|---|---|---|
| AS7470TRUE INTERNET Co.,Ltd. | TH | Peer | 376 | 89 |
| AS4621UniNet Thailand | TH | Peer | 21 | 21 |
Prefixes
The largest blocks AS139657 originates, widest first.
| Prefix | Addresses | Visibility |
|---|---|---|
| 202.28.8.0/21 | 2k | 77/77 |
| 202.28.8.0/23 | 512 | 77/77 |
| 202.28.10.0/23 | 512 | 77/77 |
| 202.28.12.0/23 | 512 | 77/77 |
| 202.28.14.0/23 | 512 | 77/77 |
| 2001:3c8:10ff::/48 | 65.5k × /64 | 12/64 |
Routing health
How AS139657'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
- Valid0.0%0
- Invalid16.7%1
- No ROA83.3%5
Propagation
- Globally propagated90% of full-feed peers or more83.3%5
- Partially propagated40% to 90%0.0%0
- Seen by few peersUnder 40%16.7%1
Prefix sizes
IPv4 — 5 prefixes
IPv6 — 1 prefixes
- /4865.5k × /64100.0%1
Recent changes
Announcements that started or stopped since 23rd Sept 2026.
No announcement by AS139657 started or stopped in this period.
Routing data derived from RouteViews MRT archives, BGPKIT relationship inference and public registry data.