AS45455 — TH-2S1N-AP - Two S One N Co Ltd, Internet Service Provider and IT Solutions

AS45455 announces 5 IPv4 prefixes covering 3,072 addresses and 0 IPv6 prefixes.

About this network

The AS handle TH-2S1N-AP is held by Two S One N Co Ltd, a Thai internet service provider and IT solutions firm.

What it's used for

• The address space carries corporate and customer infrastructure, evidenced by reverse DNS entries like static-corp.jastel.co.th and netnames such as NET-2S1N-TH and CUST-ISP-JASTEL.
• The AS announces 3072 IPv4 addresses across 5 prefixes while maintaining only 3 observed neighbours, a ratio indicative of an access or business network rather than a transit provider.
• Traffic from this AS consists of business and corporate endpoints, including static corporate connections for JasTel Network and other IT solutions clients.

Notable

• Registrants for the largest prefixes (45.112.140.0/22 and 103.51.224.0/22) align with the announcer, listing TWO S ONE N CoLtd and TWO S ONE N Co.,Ltd.
• The inventory includes prefixes registered to JASTEL NETWORK (58.82.188.0/23, 58.82.187.0/24, 203.156.118.0/24), indicating a relationship or lease arrangement with JasTel Network Company Limited.
• The address inventory is a mix of Two S One N's own space and JasTel Network space, with no IPv6 prefixes in the inventory.

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

Announced prefixes

• 45.112.140.0/22
• 58.82.187.0/24
• 58.82.188.0/23
• 103.51.224.0/22
• 203.156.118.0/24

Upstream networks

• AS45629 JasTel Network International Gateway
• AS45796 UIH / BB Connect
• AS45642 Jasmine International Tower

Adjacent networks

• AS45629 JasTel Network International Gateway
• AS45796 UIH / BB Connect
• AS45642 Jasmine International Tower

Routing security

• RPKI: 18 valid, 0 invalid and 0 not-found announcements; 7 ROAs.
• ASPA: none published.
• IRR: 100% of announcements registered; 42 route objects.
• Listed in as-sets: AS-45629, AS-45642, AS-4750-TRANSIT, AS-ANC-CUSTOMER-PROXY-REGISTER, AS-BBCONNECT, AS-CSL-DOMESTIC-TRANSIT, AS-CSLOXINFO-TRANSIT, AS-HURRICANE, AS-KDDCUSTOMER2, AS-KORNETBGP, AS-PACNET-DOWNSTREAM-HK, AS-PACNET-DOWNSTREAM-PH, AS-TELSTRA-INTL-CUSTOMERS, AS-TELSTRA-INTL-CUSTOMERS-4637, AS-TH-IX-AS38081, AS-TH-IX-AS38794, AS-TH-IX-AS45265, AS-TH-IX-AS45642, AS-TH-IX-AS45758, AS-TH-IX-AS7470, AS-TH-IX-AS7470, AS-THIX, AS-TI-GROUP, AS-TIG-GROUP, AS-TMNET-CUSTOMERS.