Autonomous System

AS9919 New Century InfoComm Tech Co., Ltd.

ISPActiveTaiwanAPNIC

AS9919 (NCIC-TW) is an ISP network operated by New Century InfoComm Tech Co., Ltd. in Taiwan, registered with APNIC. It has 816 IPv4 prefixes with 3,128,576 addresses and 16 IPv6 prefixes, which makes it the 186th largest of 82,534 active autonomous systems by IPv4 space.

IPv4 addresses3,128,576in 816 prefixes
IPv6 prefixes16≈ 1.0 × 10³¹ addresses
Size rank#186of 82,534 active ASNs
Abuser scoreVery Low0.01% of its addresses flagged · method

Details

OrganizationNew Century InfoComm Tech Co., Ltd.
AS nameNCIC-TW
Websiteaptg.com.tw
Country Taiwan (TW)
Network typeISP
RegistryAPNIC
Abuse contactantispam@seed.net.tw
Registered—
Last updated2025-11-06

IPv4 prefixes

816 prefixes · 3,128,576 addresses
NetworkAddressesFirst – last address
122.146.0.0/15131,072122.146.0.0 – 122.147.255.255
218.210.0.0/15131,072218.210.0.0 – 218.211.255.255
220.228.0.0/15131,072220.228.0.0 – 220.229.255.255
61.66.0.0/1665,53661.66.0.0 – 61.66.255.255
113.196.0.0/1665,536113.196.0.0 – 113.196.255.255
122.146.0.0/1665,536122.146.0.0 – 122.146.255.255
122.147.0.0/1665,536122.147.0.0 – 122.147.255.255
218.32.0.0/1665,536218.32.0.0 – 218.32.255.255
218.210.0.0/1665,536218.210.0.0 – 218.210.255.255
218.211.0.0/1665,536218.211.0.0 – 218.211.255.255
220.228.0.0/1665,536220.228.0.0 – 220.228.255.255
220.229.0.0/1665,536220.229.0.0 – 220.229.255.255
61.66.0.0/1732,76861.66.0.0 – 61.66.127.255
61.66.128.0/1732,76861.66.128.0 – 61.66.255.255
113.196.0.0/1732,768113.196.0.0 – 113.196.127.255
113.196.128.0/1732,768113.196.128.0 – 113.196.255.255
122.146.0.0/1732,768122.146.0.0 – 122.146.127.255
122.146.128.0/1732,768122.146.128.0 – 122.146.255.255
122.147.0.0/1732,768122.147.0.0 – 122.147.127.255
122.147.128.0/1732,768122.147.128.0 – 122.147.255.255
123.51.128.0/1732,768123.51.128.0 – 123.51.255.255
218.32.0.0/1732,768218.32.0.0 – 218.32.127.255
218.32.128.0/1732,768218.32.128.0 – 218.32.255.255
218.210.0.0/1732,768218.210.0.0 – 218.210.127.255
218.210.128.0/1732,768218.210.128.0 – 218.210.255.255
The 25 largest of 816. The API and the database have all of them.

IPv6 prefixes

16 prefixes
  • 2401:8000::/26
  • 2401:8000::/27
  • 2401:8020::/27
  • 2401:803e::/36
  • 2401:803e:3000::/36
  • 2401:803e:4000::/36
  • 2401:803e:7000::/36
  • 2401:8000:220::/48
  • 2401:803d:a::/48
  • 2401:803d:b::/48
  • 2401:803d:d::/48
  • 2401:803d:e::/48
  • 2401:803d:10::/48
  • 2401:803e:1029::/48
  • 2401:803e:2001::/48
  • 2401:a040:11::/48

Query AS9919 with the API

The ASN lookup returns everything on this page as JSON, including every prefix. ASN lookups need an API key: a free account comes with 1,000 requests a day. 

curl "https://api.ipapi.is/?q=AS9919&key=YOUR_API_KEY"

Any address in its prefixes resolves to AS9919, with or without a key:

curl "https://api.ipapi.is/?q=122.146.0.1"

Other networks of New Century InfoComm Tech Co., Ltd.

AS131586 New Century InfoComm Tech Co., Ltd.32,768 IPv4 addresses

Largest networks in Taiwan

AS3462 Chunghwa Telecom Co., Ltd.16,359,936 IPv4 addressesAS1659 This aut-num object created as part of6,637,824 IPv4 addressesAS4780 Digital United Inc.5,164,032 IPv4 addressesAS9924 Taiwan Fixed Network CO.,LTD.4,313,600 IPv4 addressesAS9674 Far EastTone Telecommunication Co., Ltd.2,298,624 IPv4 addressesAS17421 Mobile Business Group1,689,600 IPv4 addresses