subnet.im

AS59245G-Core Labs S.A

SingaporeRegistryAPNIC

As of 11th November 2026, AS59245 (G-Core Labs S.A), a network registered in Singapore with APNIC, originates 12 IPv4 prefixes covering 3.8k addresses and 1 IPv6 prefix. By IPv4 address space that makes it the 18,906th-largest of the 80,743 networks we see originating IPv4, and the 130th-largest of 450 in Singapore. It is seen behind 1 upstream network, most often AS199524 (Gcore S.A.). 77% of its announcements have a valid RPKI ROA; 1 is RPKI-invalid. 77% of its routes reach at least 90% of full-feed peers, and 2 prefixes are also originated by another network.

At a glance

IPv4 prefixes

12

IPv6 prefixes

1

IPv4 addresses

3.8k

IPv6 /64s

1M

Upstream graph

The networks AS59245 is seen behind, one and two hops out, drawn from real AS paths.

AS59245Toward the internet core
Upstream graph for AS59245: 3 neighbouring networks observed beyond it across 2 levels. The same networks are listed in the tables below.AS59245G-Core Labs S.AThis networkAS199524Gcore S.A.AS1299Arelion (fka. Tel…AS6939Hurricane Electri…

Networks observed one and two hops upstream of AS59245 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

2

adjacent networks

Upstreams
150%
Peers
150%
Downstreams
00%

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

Upstreams of AS59245
NetworkCountryRelationshipPathsVantage pts
AS199524Gcore S.A.LUPeer83678

Prefixes

The largest blocks AS59245 originates, widest first.

Largest prefixes originated by AS59245
PrefixAddressesVisibility
152.237.246.0/2351276/76
194.77.232.0/2351276/76
195.13.54.0/2351275/76
31.56.112.0/2425655/76
45.196.163.0/2425676/76
78.17.225.0/2425676/76
78.111.101.0/2425675/76
153.56.153.0/2425676/76
154.193.154.0/2425676/76
154.193.155.0/2425676/76

Routing health

How AS59245'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

  • Valid76.9%10
  • Invalid7.7%1
  • No ROA15.4%2

Propagation

  • Globally propagated90% of full-feed peers or more76.9%10
  • Partially propagated40% to 90%7.7%1
  • Seen by few peersUnder 40%15.4%2

Prefix sizes

IPv4 — 12 prefixes

IPv6 — 1 prefixes

  • /441M × /64100.0%1

Recent changes

Announcements that started or stopped since 12th Oct 2026.

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