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AS4785 XTOM-AS-JP - xTom

Japan · Autonomous System

IPv4 announced

11.8K

0.00 × /8

IPv6 announced

872.5K

/48 blocks

Prefixes

routed

Country

Japan

Interconnection (PeeringDB)

Where this network meets others — public exchange points, colocation facilities, and declared peering capacity.

Internet exchanges

IXP present

Facilities

colocation facilities

Peering capacity

100 Gbps

aggregate IX port capacity

Network type

Access ISP

Scope: Asia Pacific

Topology (CAIDA AS Rank)

The network's position in the inter-domain routing hierarchy: its customer cone, connectivity, and transit role.

Customer cone

ASes reachable as customers

AS rank

#3,130

by customer-cone size (1 = largest)

Connectivity

2 providers · 3 peers · 7 customers

Transit role

Transit / access

carries traffic for downstream customers

Upstream providers

Settlement-free peers

Peering & transit neighbours (CAIDA)

Inferred AS-level relationships: 2 upstream providers, 3 peers and 7 downstream customers. The graph shows the largest few of each; the lists link through.

Upstream providers2

give this network transit

Settlement-free peers3

exchange traffic directly

Downstream customers7

buy transit from it

Relationships are inferred from BGP by CAIDA and refreshed monthly. Transit links are well captured; some private and IXP peering is under-observed, so peer counts are a lower bound.

Routing hygiene & RPKI

How well this network secures and documents its BGP announcements — RPKI origin validation, IRR registration, and an overall hygiene score.

Hygiene score

0–100 · RPKI × IRR × consistency

RPKI coverage

75%

666.4K of 884.2K routed addrs valid

RPKI invalid

no invalid prefixes

IRR registered

69%

45 of 65 prefixes documented

Announcement composition65 routed prefixes

IPv6 deployment

Measured share of this network's users reaching the Internet over IPv6 (APNIC end-user measurement, Japan).

IPv6 capable

64.8%

users that can reach IPv6-only content

IPv6 preferred

24.9%

users that use IPv6 when both are offered

Capable64.8%

Has working IPv6 connectivity, even if it isn't always chosen.

Preferred24.9%

IPv6 wins when a destination is dual-stacked — the real-world usage rate.

Announced prefixes

Currently announced prefixes, live from RIPEstat.

66 prefixes currently seen by RIPEstat.

2403:ac80:88::/482400:ddc0:c000::/36203.96.239.0/24201.4.32.0/2445.80.189.0/24103.88.44.0/242a06:5040:12::/4845.87.94.0/24203.96.237.0/24192.109.232.0/24185.248.84.0/242a10:481::/3245.8.221.0/24201.4.34.0/242a10:483::/322400:ddc0::/32103.88.46.0/2445.8.223.0/242a06:5040:11::/4845.14.104.0/242a06:5040:10::/482400:ddc0:1000::/482400:ddc0:d000::/36203.96.238.0/242400:ddc0:b000::/3645.251.240.0/242400:ddc0:a000::/36104.245.9.0/24167.88.184.0/24202.5.220.0/2445.14.106.0/2445.8.220.0/24203.96.236.0/24194.104.144.0/24167.88.183.0/2445.116.14.0/2445.142.165.0/2445.251.241.0/24202.5.221.0/24103.19.3.0/24202.5.222.0/24103.201.129.0/242401:e9e0:3000::/362a06:5040:14::/48167.88.182.0/24103.88.45.0/2445.13.199.0/2445.117.102.0/242403:ac80::/322a10:480::/29103.88.47.0/2445.117.103.0/2445.14.71.0/2445.117.101.0/2445.80.191.0/24103.19.2.0/242a06:5040:13::/482a06:5040:5::/48195.245.229.0/2445.116.13.0/2445.8.115.0/24103.19.0.0/242a10:484::/32201.4.33.0/242a10:480::/32201.4.35.0/24

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