subnet.im

AS45204GEMNET LLC

MongoliaRegistryAPNIC

As of 10th November 2026, AS45204 (GEMNET LLC), a network registered in Mongolia with APNIC, originates 16 IPv4 prefixes covering 15.9k addresses and 1 IPv6 prefix. By IPv4 address space that makes it the 8,399th-largest of the 80,723 networks we see originating IPv4, and the 3rd-largest of 51 in Mongolia. It is seen behind 12 upstream networks, most often AS1299 (Arelion (fka. Telia Carrier)) and AS2914 (NTT America, Inc.), and in front of 24 downstream networks. Every one of its announcements has a valid RPKI ROA, and none are RPKI-invalid. 94% of its routes reach at least 90% of full-feed peers.

At a glance

IPv4 prefixes

16

IPv6 prefixes

1

IPv4 addresses

15.9k

IPv6 /64s

4.3B

Upstream graph

The networks AS45204 is seen behind, one and two hops out, drawn from real AS paths.

AS45204Toward the internet core
Upstream graph for AS45204: 10 neighbouring networks observed beyond it across 2 levels. The same networks are listed in the tables below.AS45204GEMNET LLCThis networkAS1299Arelion (fka. Tel…AS2497Internet Initiati…AS2914NTT America, Inc.AS32590Valve CorporationAS49544i3D.net B.VAS13030Init7 (Switzerlan…AS16552Tiggee LLCAS215859Hetzner Cloud - S…AS6939Hurricane Electri…AS3356Lumen (Level 3)

Networks observed one and two hops upstream of AS45204 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

82

adjacent networks

Upstreams
1215%
Peers
4656%
Downstreams
2429%

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

Upstreams of AS45204
NetworkCountryRelationshipPathsVantage pts
AS1299Arelion (fka. Telia Carrier)SEPeer11,161109
AS2914NTT America, Inc.USPeer10,27286
AS2497Internet Initiative Japan Inc.JPPeer1,0265
AS32590Valve CorporationUSPeer7214
AS49544i3D.net B.VNLPeer7144
AS174Cogent Communications, LLCUSPeer6934
AS24482SG.GSSGPeer6463
AS24940Hetzner Online GmbHDEPeer3602
AS12389PJSC RostelecomRUPeer3072
AS199524Gcore S.A.LUPeer3052

Prefixes

The largest blocks AS45204 originates, widest first.

Largest prefixes originated by AS45204
PrefixAddressesVisibility
180.149.64.0/204.1k76/76
180.149.112.0/204.1k76/76
180.149.80.0/212k76/76
180.149.104.0/212k76/76
180.149.100.0/221k76/76
180.149.90.0/2425676/76
180.149.91.0/2425676/76
180.149.93.0/2425676/76
180.149.94.0/2425676/76
180.149.95.0/2425676/76

Routing health

How AS45204'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%17
  • Invalid0.0%0
  • No ROA0.0%0

Propagation

  • Globally propagated90% of full-feed peers or more94.1%16
  • Partially propagated40% to 90%0.0%0
  • Seen by few peersUnder 40%5.9%1

Prefix sizes

IPv4 — 16 prefixes

IPv6 — 1 prefixes

  • /324.3B × /64100.0%1

Recent changes

Announcements that started or stopped since 11th Oct 2026.

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