subnet.im

AS137557International gateway co., Ltd

ThailandRegistryAPNICTypeCarrier

As of 27th September 2026, AS137557 (International gateway co., Ltd), a transit carrier registered in Thailand with APNIC, originates 1 IPv4 prefix covering 256 addresses and 1 IPv6 prefix. By IPv4 address space that makes it the 59,127th-largest of the 79,525 networks we see originating IPv4, and the 352nd-largest of 456 in Thailand. It is seen behind 24 upstream networks, most often AS6939 (Hurricane Electric LLC) and AS45430 (SBN-IIG/AWN-IIG transit provider), and in front of 16 downstream networks. Every one of its announcements has a valid RPKI ROA, and none are RPKI-invalid. 100% of its routes reach at least 90% of full-feed peers.

At a glance

IPv4 prefixes

1

IPv6 prefixes

1

IPv4 addresses

256

IPv6 /64s

4.3B

Upstream graph

The networks AS137557 is seen behind, one and two hops out, drawn from real AS paths.

AS137557Toward the internet core
Upstream graph for AS137557: 12 neighbouring networks observed beyond it across 2 levels. The same networks are listed in the tables below.AS137557International gat…This networkAS174Cogent Communicat…AS2914NTT America, Inc.AS6939Hurricane Electri…AS45430SBN-IIG/AWN-IIG t…AS58453China Mobile Inte…AS3130RGnet OUAS49544i3D.net B.VAS18106Viewqwest Pte LtdAS20130Depaul UniversityAS9002RETN LimitedAS24482SG.GSAS3356Lumen (Level 3)

Networks observed one and two hops upstream of AS137557 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

118

adjacent networks

Upstreams
2420%
Peers
7866%
Downstreams
1614%

Networks carrying this one's traffic toward the rest of the internet.

Upstreams of AS137557
NetworkCountryRelationshipPathsVantage pts
AS6939Hurricane Electric LLCUSPeer8,32195
AS45430SBN-IIG/AWN-IIG transit providerTHPeer1,60439
AS2914NTT America, Inc.USPeer1,26734
AS58453China Mobile InternationalHKPeer98835
AS174Cogent Communications, LLCUSPeer41636
AS7713PT Telkom Indonesia TbkIDPeer3884
AS23673Cogetel Online, Cambodia, ISPKHPeer2622
AS58511Swoop (Anycast Global Backbone)AUPeer2592
AS16552Tiggee LLCUSPeer2582
AS17660DrukNet ISPBTPeer2582

Prefixes

The largest blocks AS137557 originates, widest first.

Largest prefixes originated by AS137557
PrefixAddressesVisibility
103.113.44.0/2425681/81
2402:b740::/324.3B × /6464/64

Routing health

How AS137557'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

  • Valid100.0%2
  • Invalid0.0%0
  • No ROA0.0%0

Propagation

  • Globally propagated90% of full-feed peers or more100.0%2
  • Partially propagated40% to 90%0.0%0
  • Seen by few peersUnder 40%0.0%0

Prefix sizes

IPv4 — 1 prefixes

IPv6 — 1 prefixes

  • /324.3B × /64100.0%1

Recent changes

Announcements that started or stopped since 28th Aug 2026.

No announcement by AS137557 started or stopped in this period.

Routing data derived from RouteViews MRT archives, BGPKIT relationship inference and public registry data.