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AS9919 NCIC-TW - New Century InfoComm Tech Co., Ltd.

Taiwan · Autonomous System

IPv4 announced

3.1M

0.19 × /8

IPv6 announced

8.4M

/48 blocks

Prefixes

867

routed

Country

Taiwan

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

#10,354

by customer-cone size (1 = largest)

Connectivity

2 providers · 0 peers · 1 customers

Transit role

access

CAIDA transit classification

Upstream providers

Settlement-free peers

Downstream customers

Peering & transit neighbours (CAIDA)

Inferred AS-level relationships: 2 upstream providers, 0 peers and 1 downstream customers. The graph shows the largest few of each; the lists link through.

Upstream providers2

give this network transit

Settlement-free peers0

exchange traffic directly

None recorded.

Downstream customers1

buy transit from it

AS18413 GBTC-TW - Great Taipei Broadband Company Ltd.

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

48%

5.5M of 11.5M routed addrs valid

RPKI invalid

prefixes — possible hijack / stale ROA

IRR registered

70%

605 of 867 prefixes documented

Announcement composition867 routed prefixes

IPv6 deployment

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

IPv6 capable

0.7%

users that can reach IPv6-only content

IPv6 preferred

0.3%

users that use IPv6 when both are offered

Capable0.7%

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

Preferred0.3%

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

Announced prefixes

Currently announced prefixes, live from RIPEstat.

921 prefixes currently seen by RIPEstat.

220.229.128.0/18220.229.32.0/192401:803e:4000::/36122.147.133.0/24113.196.225.0/24175.182.78.0/24218.210.195.0/24123.51.244.0/24218.32.45.0/24113.196.120.0/22220.228.216.0/24113.196.128.0/24113.196.32.0/1961.61.125.0/24113.196.83.0/24122.147.195.0/24113.196.36.0/24113.196.91.0/2461.61.96.0/19220.228.32.0/19220.228.88.0/21218.211.96.0/19218.32.192.0/19218.211.61.0/24122.147.180.0/2461.56.211.0/2461.61.110.0/24218.32.0.0/18122.146.88.0/24218.210.222.0/24113.196.249.0/24122.147.51.0/24218.32.0.0/16220.229.128.0/17218.32.128.0/17122.147.108.0/24220.228.116.0/22123.51.224.0/24113.196.141.0/24103.125.228.0/22218.211.128.0/19218.210.49.0/24123.51.183.0/24113.196.88.0/24218.210.106.0/24122.147.137.0/2461.56.222.0/2461.66.229.0/2461.66.147.0/24113.196.192.0/20122.147.183.0/24123.51.249.0/24113.196.86.0/24210.244.26.0/24220.228.144.0/24122.146.251.0/24113.196.96.0/19218.210.128.0/18218.211.40.0/21122.147.131.0/24218.210.216.0/2461.66.84.0/2259.104.111.0/2461.66.72.0/22113.196.248.0/24218.32.54.0/24122.147.185.0/24123.51.196.0/24113.196.63.0/24220.228.132.0/24123.51.208.0/24218.210.96.0/1961.61.115.0/24220.228.173.0/24106.106.242.0/242401:a040:11::/48122.146.96.0/19218.32.77.0/24122.146.118.0/2461.61.132.0/2461.66.239.0/24123.51.218.0/24123.51.241.0/2461.61.109.0/24113.196.222.0/24122.147.193.0/24218.210.128.0/19113.196.80.0/24220.228.0.0/1961.66.224.0/24218.32.3.0/24122.147.179.0/24218.211.97.0/24113.196.173.0/24113.196.57.0/24218.211.32.0/19103.103.170.0/24123.51.168.0/24113.196.126.0/24202.58.24.0/24122.146.160.0/19123.51.136.0/24113.196.81.0/24122.147.214.0/24218.211.160.0/24220.228.128.0/18218.32.96.0/19122.146.128.0/19113.196.246.0/24122.147.128.0/19220.228.21.0/24113.196.192.0/21218.210.16.0/2061.61.98.0/24218.32.238.0/24218.210.57.0/24218.211.48.0/20113.196.71.0/2461.56.224.0/19218.32.10.0/24113.196.187.0/24113.196.116.0/24218.32.194.0/24122.146.86.0/24220.229.60.0/22113.196.65.0/24218.32.248.0/24202.83.10.0/24103.4.106.0/2461.66.101.0/24113.196.241.0/24218.32.163.0/24218.211.167.0/24113.196.127.0/24218.211.128.0/17122.146.125.0/24122.147.239.0/24218.32.47.0/24218.210.100.0/24106.105.32.0/2161.66.150.0/2461.56.224.0/21203.73.108.0/24113.196.233.0/2461.66.0.0/19220.228.224.0/19112.105.117.0/24211.78.12.0/24218.32.21.0/24220.229.169.0/24220.229.64.0/19106.106.196.0/24123.51.178.0/24123.51.213.0/24220.228.96.0/1961.66.224.0/19220.228.197.0/24218.211.60.0/24113.196.133.0/242401:803d:b::/48113.196.82.0/24113.196.59.0/24106.106.249.0/24218.32.164.0/24122.146.119.0/24220.229.148.0/22103.240.82.0/2461.66.31.0/24218.210.192.0/19123.51.152.0/24220.228.36.0/24122.146.0.0/19122.147.192.0/18113.196.157.0/24113.196.94.0/24220.229.244.0/24122.146.194.0/24122.147.200.0/24220.229.234.0/24218.32.64.0/19218.32.244.0/24220.229.72.0/22220.228.228.0/22220.229.249.0/24106.106.233.0/24113.196.180.0/2461.61.127.0/24113.196.174.0/24112.105.115.0/24185.171.168.0/24113.196.139.0/24122.147.191.0/2461.56.194.0/24113.196.162.0/24122.147.32.0/24123.51.192.0/19218.32.216.0/24220.228.156.0/24113.196.243.0/24211.78.160.0/19122.147.47.0/24220.229.124.0/24123.51.215.0/24123.51.174.0/24123.51.255.0/24122.147.203.0/24113.196.0.0/18218.32.166.0/24175.182.253.0/24218.210.52.0/24113.196.118.0/24122.147.188.0/24122.147.223.0/24220.228.0.0/18113.196.189.0/24218.211.224.0/20218.32.5.0/24113.196.128.0/17113.196.159.0/24211.78.130.0/24123.51.199.0/24218.32.55.0/24103.215.230.0/23122.147.53.0/24113.196.73.0/2461.56.210.0/2461.66.192.0/19218.211.99.0/2461.61.100.0/24113.196.0.0/16122.146.0.0/17113.196.142.0/24113.196.119.0/24218.211.92.0/24218.32.104.0/21218.32.189.0/24220.228.135.0/24122.147.170.0/24122.147.147.0/24122.146.7.0/24123.51.145.0/2461.66.128.0/19218.32.8.0/2461.61.137.0/2461.66.128.0/18218.32.0.0/17122.147.194.0/24122.147.184.0/24122.147.241.0/24220.228.206.0/24218.210.0.0/16122.147.218.0/24220.229.128.0/19220.228.161.0/24220.228.194.0/24123.205.19.0/24218.211.164.0/24122.147.250.0/24122.147.227.0/24123.51.248.0/24218.210.0.0/17122.147.2.0/2461.61.136.0/24220.229.100.0/24211.78.168.0/22218.32.219.0/24122.147.42.0/24113.196.76.0/24122.146.200.0/24218.211.88.0/24122.147.219.0/24220.228.172.0/24113.196.212.0/24122.147.173.0/24218.32.99.0/24220.228.195.0/24218.211.165.0/24123.51.237.0/2461.61.114.0/24113.196.87.0/24113.196.177.0/24220.229.192.0/18107.155.224.0/22122.146.64.0/19220.229.0.0/16218.32.251.0/24113.196.186.0/24218.211.96.0/2461.56.192.0/1961.61.103.0/24113.196.200.0/24113.196.178.0/2461.66.8.0/21220.229.128.0/22123.51.158.0/24122.146.24.0/24218.32.215.0/24122.147.54.0/24218.32.228.0/22218.210.0.0/19218.32.110.0/2461.66.128.0/17218.32.196.0/24218.32.120.0/21218.32.217.0/24122.147.199.0/24122.147.204.0/24122.147.192.0/24218.211.162.0/24123.51.190.0/24123.51.161.0/24122.147.96.0/1961.61.133.0/24103.30.254.0/24123.51.202.0/24220.229.236.0/24203.73.106.0/24113.196.95.0/24122.146.60.0/22122.147.169.0/2461.66.160.0/19218.32.237.0/2461.66.0.0/1861.66.64.0/19113.196.41.0/2461.66.0.0/16123.51.147.0/24202.58.23.0/24122.147.254.0/24122.147.106.0/2461.61.97.0/24218.32.224.0/23122.146.222.0/2461.66.172.0/22122.146.21.0/24122.147.215.0/24202.58.21.0/24220.229.64.0/18106.106.240.0/24218.32.144.0/20122.147.32.0/19122.147.192.0/19113.196.110.0/24122.146.121.0/24123.51.254.0/24122.147.190.0/24122.147.202.0/24122.147.55.0/24195.253.237.0/24122.147.0.0/18106.105.43.0/2461.56.221.0/24122.147.64.0/19122.147.130.0/24113.196.138.0/24122.147.107.0/24218.210.0.0/20218.210.64.0/18218.211.16.0/2161.66.79.0/24113.196.61.0/24113.196.38.0/2461.56.215.0/24220.229.32.0/21113.196.93.0/24106.105.48.0/21123.51.128.0/17122.147.58.0/24113.196.33.0/24123.51.182.0/24113.196.101.0/24218.32.56.0/24220.228.164.0/24113.196.64.0/19210.244.1.0/24218.210.218.0/24218.211.170.0/242401:8000::/27113.196.183.0/24113.196.208.0/20113.196.176.0/24218.32.76.0/24220.228.204.0/24218.32.218.0/24123.51.172.0/24211.78.3.0/2461.66.184.0/21220.229.233.0/2461.61.112.0/24122.146.22.0/24122.147.0.0/24218.211.224.0/19122.147.176.0/24218.210.224.0/19185.171.170.0/2461.61.106.0/2461.61.134.0/24123.51.148.0/24220.229.80.0/22122.147.224.0/24

Fetching announced prefixes from RIPEstat…

921 prefixes currently seen by RIPEstat.