subnet.im

AS46997Black Mesa Corporation

United StatesRegistryARINTypeCarrier

As of 27th September 2026, AS46997 (Black Mesa Corporation), a transit carrier registered in the United States with ARIN, originates 14 IPv4 prefixes covering 4.4k addresses and 28 IPv6 prefixes. By IPv4 address space that makes it the 16,612th-largest of the 79,536 networks we see originating IPv4, and the 4,668th-largest of 18,430 in the United States. It is seen behind 21 upstream networks, most often AS6939 (Hurricane Electric LLC) and AS38008 (Aperture Science Limited), and in front of 4 downstream networks. 52% of its announcements have a valid RPKI ROA; 3 are RPKI-invalid. 86% of its routes reach at least 90% of full-feed peers.

At a glance

IPv4 prefixes

14

IPv6 prefixes

28

IPv4 addresses

4.4k

IPv6 /64s

95.6M

Upstream graph

The networks AS46997 is seen behind, one and two hops out, drawn from real AS paths.

AS46997Toward the internet core
Upstream graph for AS46997: 12 neighbouring networks observed beyond it across 2 levels. The same networks are listed in the tables below.AS46997Black Mesa Corpor…This networkAS6939Hurricane Electri…AS20473The Constant Comp…AS38008Aperture Science …AS50131Spartan Host LtdAS206499LOCIX LIMITEDAS18106Viewqwest Pte LtdAS20130Depaul UniversityAS1299Arelion (fka. Tel…AS3356Lumen (Level 3)AS3491PCCW Global (HK) …AS174Cogent Communicat…AS3257GTT Communication…

Networks observed one and two hops upstream of AS46997 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

83

adjacent networks

Upstreams
2125%
Peers
5870%
Downstreams
45%

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

Upstreams of AS46997
NetworkCountryRelationshipPathsVantage pts
AS6939Hurricane Electric LLCUSPeer2,735145
AS38008Aperture Science LimitedHKPeer596147
AS50131Spartan Host LtdGBPeer111107
AS20473The Constant Company, LLCUSPeer8888
AS206499LOCIX LIMITEDGBPeer5555
AS49544i3D.net B.VNLPeer452
AS58511Swoop (Anycast Global Backbone)AUPeer32
AS9002RETN LimitedGBPeer32
AS18106Viewqwest Pte LtdSGPeer22
AS24482SG.GSSGPeer22

Prefixes

All 42

The largest blocks AS46997 originates, widest first.

Largest prefixes originated by AS46997
PrefixAddressesVisibility
23.247.136.0/2351282/82
103.152.112.0/2351282/82
103.175.98.0/2351282/82
23.247.136.0/2425682/82
23.247.137.0/2425682/82
44.68.205.0/2425682/82
103.152.112.0/2425682/82
103.152.113.0/2425682/82
103.175.98.0/2425682/82
103.175.99.0/2425682/82

Routing health

How AS46997'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

  • Valid52.4%22
  • Invalid7.1%3
  • No ROA40.5%17

Propagation

  • Globally propagated90% of full-feed peers or more85.7%36
  • Partially propagated40% to 90%0.0%0
  • Seen by few peersUnder 40%14.3%6

Prefix sizes

IPv4 — 14 prefixes

IPv6 — 28 prefixes

  • /4016.8M × /6417.9%5
  • /441M × /6432.1%9
  • /45524k × /6410.7%3
  • /4865.5k × /6439.3%11

Recent changes

Announcements that started or stopped since 28th Aug 2026.

No announcement by AS46997 started or stopped in this period.

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