subnet.im

AS7530BroadBand Tower, Inc.

JapanRegistryAPNIC

As of 10th November 2026, AS7530 (BroadBand Tower, Inc.), a network registered in Japan with APNIC, originates 3 IPv4 prefixes covering 2.6k addresses and 1 IPv6 prefix. By IPv4 address space that makes it the 23,457th-largest of the 80,733 networks we see originating IPv4, and the 459th-largest of 737 in Japan. It is seen behind 11 upstream networks, most often AS9607 (BroadBand Tower, Inc.) and AS6939 (Hurricane Electric LLC), and in front of 2 downstream networks. Every one of its announcements has a valid RPKI ROA, and none are RPKI-invalid. 75% of its routes reach at least 90% of full-feed peers.

At a glance

IPv4 prefixes

3

IPv6 prefixes

1

IPv4 addresses

2.6k

IPv6 /64s

4.3B

Upstream graph

The networks AS7530 is seen behind, one and two hops out, drawn from real AS paths.

AS7530Toward the internet core
Upstream graph for AS7530: 12 neighbouring networks observed beyond it across 2 levels. The same networks are listed in the tables below.AS7530BroadBand Tower, …This networkAS4775Globe TelecomsAS6939Hurricane Electri…AS9607BroadBand Tower, …AS35280F5 Networks SARLAS49544i3D.net B.VAS20130Depaul UniversityAS132337AxclusiveAS1299Arelion (fka. Tel…AS4637Telstra Internati…AS8220COLTAS32590Valve CorporationAS2914NTT America, Inc.

Networks observed one and two hops upstream of AS7530 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

42

adjacent networks

Upstreams
1126%
Peers
2969%
Downstreams
25%

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

Upstreams of AS7530
NetworkCountryRelationshipPathsVantage pts
AS9607BroadBand Tower, Inc.JPPeer335123
AS6939Hurricane Electric LLCUSPeer166
AS35280F5 Networks SARLFRPeer53
AS49544i3D.net B.VNLPeer52
AS9002RETN LimitedGBPeer42
AS4775Globe TelecomsPHAdjacent42
AS8966Etisalat (E&)AEPeer31
AS23815Japan Internet Xing Co., Ltd.JPAdjacent22
AS24482SG.GSSGPeer22
AS18106Viewqwest Pte LtdSGPeer22

Prefixes

The largest blocks AS7530 originates, widest first.

Largest prefixes originated by AS7530
PrefixAddressesVisibility
210.231.212.0/221k76/76
210.231.220.0/221k76/76
210.231.222.0/2351218/76
2405:f000::/324.3B × /6463/63

Routing health

How AS7530'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%4
  • Invalid0.0%0
  • No ROA0.0%0

Propagation

  • Globally propagated90% of full-feed peers or more75.0%3
  • Partially propagated40% to 90%0.0%0
  • Seen by few peersUnder 40%25.0%1

Prefix sizes

IPv4 — 3 prefixes

IPv6 — 1 prefixes

  • /324.3B × /64100.0%1

Recent changes

Announcements that started or stopped since 12th Oct 2026.

No announcement by AS7530 started or stopped in this period.

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