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AS23724

AS23724 is IDC, China Telecommunications Corporation.

Last updated 3 Nov 2026 from DB-IP ASN Lite (2026-11-01) and RIR statistics (3 Nov 2026)

Short answer

AS23724 belongs to IDC, China Telecommunications Corporation. DB-IP Lite attributes 1,979,648 IPv4 addresses in 295 ranges and 16 IPv6 ranges to it, all or nearly all of the IPv4 space in China. The number is registered with APNIC in China on 22 Apr 2003.

Facts for AS23724
Operator (DB-IP)IDC, China Telecommunications Corporation
IPv4 addresses1,979,648
IPv4 ranges295
IPv6 ranges16
RegistryAPNIC
Registered22 Apr 2003
Registry countryChina (CN)

Does it publish a geofeed?

We haven’t checked this network’s registry records for a geofeed yet. The Truth Check looks for one live for any address you test.

Shared addresses (CGNAT)

IDC, China Telecommunications Corporation hasn’t been documented as using carrier-grade NAT in a source we could check. To see whether your own connection is behind it, compare your router’s address on the CGNAT check.

IPv6

DB-IP lists 16 IPv6 ranges for AS23724, so customers can get IPv6 addresses, which databases place separately from IPv4.

Where its IPv4 space is used, according to DB-IP

CN100%
JP0.27%

Share of the network’s IPv4 addresses by DB-IP Country Lite. IP Geolocation by DB-IP.

IP ranges

RangeAs CIDRAddresses
1.203.94.0 – 1.203.95.2551.203.94.0/23512
1.203.115.0 – 1.203.115.2551.203.115.0/24256
1.203.124.0 – 1.203.127.2551.203.124.0/221,024
36.110.128.0 – 36.110.212.25536.110.128.0/18, 36.110.192.0/20 …21,760
36.110.214.0 – 36.110.215.25536.110.214.0/23512
36.110.224.0 – 36.110.233.25536.110.224.0/21, 36.110.232.0/232,560
36.110.236.0 – 36.110.255.25536.110.236.0/22, 36.110.240.0/205,120
36.111.80.0 – 36.111.81.25536.111.80.0/23512
36.111.88.0 – 36.111.88.25536.111.88.0/24256
36.111.148.0 – 36.111.149.25536.111.148.0/23512
36.112.128.0 – 36.112.139.25536.112.128.0/21, 36.112.136.0/223,072
36.112.142.0 – 36.112.143.25536.112.142.0/23512
36.112.145.0 – 36.112.150.25536.112.145.0/24, 36.112.146.0/23 …1,536
36.112.154.0 – 36.112.159.25536.112.154.0/23, 36.112.156.0/221,536
36.112.168.0 – 36.112.169.25536.112.168.0/23512
36.112.235.0 – 36.112.235.25536.112.235.0/24256
42.62.0.0 – 42.62.127.25542.62.0.0/1732,768
42.158.0.0 – 42.158.255.25542.158.0.0/1665,536
43.196.232.0 – 43.196.235.25543.196.232.0/221,024
43.231.160.0 – 43.231.163.25543.231.160.0/221,024
43.231.167.0 – 43.231.170.25543.231.167.0/24, 43.231.168.0/23 …1,024
43.243.232.0 – 43.243.235.25543.243.232.0/221,024
43.247.176.0 – 43.247.191.25543.247.176.0/204,096
45.254.64.0 – 45.254.79.25545.254.64.0/204,096
49.4.32.0 – 49.4.47.25549.4.32.0/204,096
49.4.128.0 – 49.4.131.25549.4.128.0/221,024
49.7.0.0 – 49.7.255.25549.7.0.0/1665,536
54.222.46.0 – 54.222.55.25554.222.46.0/23, 54.222.48.0/212,560
54.222.65.0 – 54.222.65.25554.222.65.0/24256
54.222.89.0 – 54.222.89.25554.222.89.0/24256
54.222.96.0 – 54.222.97.25554.222.96.0/23512
54.222.100.0 – 54.222.117.25554.222.100.0/22, 54.222.104.0/21 …4,608
59.151.20.0 – 59.151.26.25559.151.20.0/22, 59.151.24.0/23 …1,792
59.151.28.0 – 59.151.31.25559.151.28.0/221,024
61.4.80.0 – 61.4.81.25561.4.80.0/23512
101.36.64.0 – 101.36.79.255101.36.64.0/204,096
101.124.0.0 – 101.124.15.255101.124.0.0/204,096
101.124.19.0 – 101.124.19.255101.124.19.0/24256
101.124.22.0 – 101.124.22.255101.124.22.0/24256
101.124.24.0 – 101.124.31.255101.124.24.0/212,048
101.124.62.0 – 101.124.62.255101.124.62.0/24256
101.198.0.0 – 101.198.4.255101.198.0.0/22, 101.198.4.0/241,280
101.236.80.0 – 101.236.255.255101.236.80.0/20, 101.236.96.0/19 …45,056
101.237.33.0 – 101.237.40.255101.237.33.0/24, 101.237.34.0/23 …2,048
101.237.128.0 – 101.237.143.255101.237.128.0/204,096
101.251.195.0 – 101.251.195.255101.251.195.0/24256
101.251.202.0 – 101.251.202.255101.251.202.0/24256
101.251.204.0 – 101.251.223.255101.251.204.0/22, 101.251.208.0/205,120
101.251.227.0 – 101.251.227.255101.251.227.0/24256
101.251.229.0 – 101.251.229.255101.251.229.0/24256
2400:5280:f803:: – 2400:5280:f803:ffff:ffff:ffff:ffff:ffff2400:5280:f803::/48IPv6
2400:89c0:6000:: – 2400:89c0:6000:ffff:ffff:ffff:ffff:ffff2400:89c0:6000::/48IPv6
2400:b700:: – 2400:b700:0:ffff:ffff:ffff:ffff:ffff2400:b700::/48IPv6
2401:1d40:: – 2401:1d40:0:ffff:ffff:ffff:ffff:ffff2401:1d40::/48IPv6
2402:5ec0:: – 2402:5ec0:ffff:ffff:ffff:ffff:ffff:ffff2402:5ec0::/32IPv6
2402:f140:ff00:: – 2402:f140:ff00:ffff:ffff:ffff:ffff:ffff2402:f140:ff00::/48IPv6
2403:4280:: – 2403:4280:0:ffff:ffff:ffff:ffff:ffff2403:4280::/48IPv6
2403:5c80:: – 2403:5c80:0:ffff:ffff:ffff:ffff:ffff2403:5c80::/48IPv6
2403:a140:10:: – 2403:a140:10:ffff:ffff:ffff:ffff:ffff2403:a140:10::/48IPv6
2405:1480:2000:: – 2405:1480:2000:ffff:ffff:ffff:ffff:ffff2405:1480:2000::/48IPv6
2406:1080:: – 2406:1080:0:ffff:ffff:ffff:ffff:ffff2406:1080::/48IPv6
2406:4d00:: – 2406:4d00:0:ffff:ffff:ffff:ffff:ffff2406:4d00::/48IPv6
2406:cf00:: – 2406:cf00:0:ffff:ffff:ffff:ffff:ffff2406:cf00::/48IPv6
2406:cf00:1000:: – 2406:cf00:101f:ffff:ffff:ffff:ffff:ffff2406:cf00:1000::/43IPv6
2407:b380:8000:: – 2407:b380:8000:ffff:ffff:ffff:ffff:ffff2407:b380:8000::/48IPv6
240e:83:: – 240e:83:7ff:ffff:ffff:ffff:ffff:ffff240e:83::/37IPv6
Showing 50 of 295 IPv4 and 16 of 16 IPv6 ranges All ranges (CSV)

IP Geolocation by DB-IP, ASN Lite, CC BY 4.0.

Using an address from this network? See which sources agree on where it is.

Sources

  1. DB-IP IP to ASN Lite (CC BY 4.0) · checked 3 Nov 2026
  2. NRO RIR delegated-extended statistics · checked 4 Nov 2026