AS9649 — MOPH-TH-AP Information Technology Office

AS9649 announces 1 IPv4 prefixes covering 65,536 addresses and 1 IPv6 prefixes.

About this network

AS9649 (MOPH-TH-AP) is held by the Ministry of Public Health of Thailand — the registry object's bare "Information Technology Office" is the ministry's ICT centre at the Permanent Secretary Office in Nonthaburi. The AS originates the ministry's 203.157.0.0/16 and serves the national public-health network: the ministry itself, its departments, and the provincial hospitals and health offices under it.

What it's used for

RIS sees 14 IPv4 prefixes totalling 65,536 addresses — a full /16, deaggregated into a handful of /20s, /21s, /23s and /24s — plus a single IPv6 prefix (2001:df5:5c00::/48), announced through only 4 observed neighbours.

That is an unusually clean signature. Every announced prefix without exception falls inside 203.157.0.0/16; there is no scattered inventory, no third-party space, nothing borrowed. A single /16 held whole by one organisation and carved into internal chunks is what a national ministry looks like when it was allocated its address space directly and has run it ever since. The four upstreams are Thai carriers providing transit; with a /16 behind them and no peering breadth, none of this traffic is transiting onward. Sampled reverse DNS returns wifi.moph.go.th, an in-house .go.th government name, consistent with the space carrying ministry-operated services rather than anyone else's.

Notable

• The registry holder string names only the "Information Technology Office", which is easy to misread as a generic IT company; it is the ministry's own ICT unit.
• Thai public-hospital and provincial health-office systems commonly sit inside this /16, so the network's reach extends well beyond the ministry's head office.

This description is AI-generated, best-effort context — not authoritative, and provided without any guarantee of accuracy.

Announced prefixes

• 203.157.0.0/16
• 2001:df5:5c00::/48

Upstream networks

• AS132280 Symphony Communication (Thailand) PCL.
• AS9931 National Telecom Public Company Limited
• AS38794 UIH

Adjacent networks

• AS132280 Symphony Communication (Thailand) PCL.
• AS9931 National Telecom Public Company Limited
• AS38794 UIH

Routing security

• RPKI: 0 valid, 0 invalid and 15 not-found announcements; 0 ROAs.
• ASPA: none published.
• IRR: 93% of announcements registered; 420 route objects.
• Listed in as-sets: AS-132876, AS-45629, AS-63529-AS-IMPORT-AS9505, AS-ANC-CUSTOMER-PROXY-REGISTER, AS-BBCONNECT, AS-HURRICANE, AS-HURRICANEV6, AS-HUTCHCITY, AS-KDDCUSTOMER2, AS-KORNETBGP, AS-RETN-ACTUAL-V4, AS-SKBROADBAND, AS-TELSTRA-INTL-CUSTOMERS, AS-TH-IX-AS38081, AS-TH-IX-AS38794, AS-TH-IX-AS45265, AS-TH-IX-AS45758, AS-TH-IX-AS4741, AS-TH-IX-AS55554, AS-TH-IX-AS7470, AS-TH-IX-AS7470, AS-TH-IX-AS7654, AS-TH-IX-AS9931, AS-TH-IX-AS9931, AS-THIX.