subnet.im

AS18068Dream Wave Shizuoka Co. Ltd.

JapanRegistryAPNIC

As of 11th November 2026, AS18068 (Dream Wave Shizuoka Co. Ltd.), a network registered in Japan with APNIC, originates 51 IPv4 prefixes covering 54k addresses and 2 IPv6 prefixes. By IPv4 address space that makes it the 4,349th-largest of the 80,747 networks we see originating IPv4, and the 180th-largest of 737 in Japan. It is seen behind 11 upstream networks, most often AS146986 (SUZUYO SHINWART CORPORATION) and AS2518 (BIGLOBE Inc.), and in front of 1 downstream network. 11% of its announcements have 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

51

IPv6 prefixes

2

IPv4 addresses

54k

IPv6 /64s

4.3B

Upstream graph

The networks AS18068 is seen behind, one and two hops out, drawn from real AS paths.

AS18068Toward the internet core
Upstream graph for AS18068: 12 neighbouring networks observed beyond it across 2 levels. The same networks are listed in the tables below.AS18068Dream Wave Shizuo…This networkAS2518BIGLOBE Inc.AS2519ARTERIA Networks …AS3491PCCW Global (HK) …AS17676SoftBank Corp.AS146986SUZUYO SHINWART C…AS174Cogent Communicat…AS2516KDDI CorporationAS2497Internet Initiati…AS3356Lumen (Level 3)AS1299Arelion (fka. Tel…AS2914NTT America, Inc.AS55900GLBB Japan KK

Networks observed one and two hops upstream of AS18068 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

31

adjacent networks

Upstreams
1135%
Peers
1961%
Downstreams
13%

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

Upstreams of AS18068
NetworkCountryRelationshipPathsVantage pts
AS146986SUZUYO SHINWART CORPORATIONJPPeer1,28064
AS2518BIGLOBE Inc.JPPeer1,10180
AS2519ARTERIA Networks CorporationJPPeer96968
AS17676SoftBank Corp.JPPeer35019
AS3491PCCW Global (HK) Ltd.HKPeer30410
AS18106Viewqwest Pte LtdSGPeer622
AS4775Globe TelecomsPHAdjacent332
AS9002RETN LimitedGBPeer332
AS49544i3D.net B.VNLPeer311
AS7713PT Telkom Indonesia TbkIDPeer42

Prefixes

All 53

The largest blocks AS18068 originates, widest first.

Largest prefixes originated by AS18068
PrefixAddressesVisibility
202.94.192.0/198.2k76/76
218.223.64.0/204.1k76/76
218.223.72.0/212k76/76
218.223.88.0/212k76/76
27.100.28.0/221k76/76
43.229.244.0/221k76/76
45.113.4.0/221k76/76
49.143.244.0/221k76/76
59.153.204.0/221k76/76
103.40.96.0/221k76/76

Routing health

How AS18068'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

  • Valid11.3%6
  • Invalid0.0%0
  • No ROA88.7%47

Propagation

  • Globally propagated90% of full-feed peers or more100.0%53
  • Partially propagated40% to 90%0.0%0
  • Seen by few peersUnder 40%0.0%0

Prefix sizes

IPv4 — 51 prefixes

IPv6 — 2 prefixes

  • /324.3B × /6450.0%1
  • /4016.8M × /6450.0%1

Recent changes

Announcements that started or stopped since 12th Oct 2026.

No announcement by AS18068 started or stopped in this period.

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