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AS4538

AS4538 is China Education and Research Network Center.

Last updated 3 Nov 2026 from DB-IP ASN Lite (2026-11-01) and RIR statistics (2 Nov 2026)

Short answer

AS4538 belongs to China Education and Research Network Center. DB-IP Lite attributes 16,290,560 IPv4 addresses in 202 ranges and 169 IPv6 ranges to it, all or nearly all of the IPv4 space in China. The number is registered with APNIC in China on 1 Aug 2002.

Facts for AS4538
Operator (DB-IP)China Education and Research Network Center
IPv4 addresses16,290,560
IPv4 ranges202
IPv6 ranges169
RegistryAPNIC
Registered1 Aug 2002
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)

China Education and Research Network Center 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 169 IPv6 ranges for AS4538, so customers can get IPv6 addresses, which databases place separately from IPv4.

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

CN100%
SG0.00%

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

IP ranges

RangeAs CIDRAddresses
1.51.0.0 – 1.51.255.2551.51.0.0/1665,536
1.184.0.0 – 1.185.255.2551.184.0.0/15131,072
42.244.0.0 – 42.245.191.25542.244.0.0/16, 42.245.0.0/17 …114,688
42.246.0.0 – 42.247.255.25542.246.0.0/15131,072
49.52.0.0 – 49.55.255.25549.52.0.0/14262,144
49.120.0.0 – 49.123.255.25549.120.0.0/14262,144
49.141.0.0 – 49.141.255.25549.141.0.0/1665,536
49.208.0.0 – 49.209.255.25549.208.0.0/15131,072
58.154.0.0 – 58.154.15.25558.154.0.0/204,096
58.154.32.0 – 58.155.255.25558.154.32.0/19, 58.154.64.0/18 …122,880
58.192.0.0 – 58.206.191.25558.192.0.0/13, 58.200.0.0/14 …966,656
58.207.0.0 – 58.207.255.25558.207.0.0/1665,536
59.64.0.0 – 59.73.127.25559.64.0.0/13, 59.72.0.0/16 …622,592
59.73.168.0 – 59.77.96.25559.73.168.0/21, 59.73.176.0/20 …243,968
59.77.98.0 – 59.77.98.25559.77.98.0/24256
59.77.100.0 – 59.77.103.25559.77.100.0/221,024
59.77.108.0 – 59.77.115.25559.77.108.0/22, 59.77.112.0/222,048
59.77.128.0 – 59.77.163.25559.77.128.0/19, 59.77.160.0/229,216
59.77.176.0 – 59.78.167.25559.77.176.0/20, 59.77.192.0/18 …63,488
59.78.171.0 – 59.78.171.25559.78.171.0/24256
59.78.176.0 – 59.78.203.25559.78.176.0/20, 59.78.192.0/21 …7,168
59.79.0.0 – 59.79.103.25559.79.0.0/18, 59.79.64.0/19 …26,624
59.79.108.0 – 59.79.108.25559.79.108.0/24256
59.79.112.0 – 59.79.113.25559.79.112.0/23512
59.79.116.0 – 59.79.123.25559.79.116.0/22, 59.79.120.0/222,048
59.79.125.0 – 59.79.125.25559.79.125.0/24256
59.79.128.0 – 59.79.194.25559.79.128.0/18, 59.79.192.0/23 …17,152
59.79.196.0 – 59.79.199.25559.79.196.0/221,024
59.79.208.0 – 59.79.209.25559.79.208.0/23512
59.79.224.0 – 59.79.255.25559.79.224.0/198,192
101.4.0.0 – 101.7.6.255101.4.0.0/15, 101.6.0.0/16 …198,400
101.7.8.0 – 101.7.255.255101.7.8.0/21, 101.7.16.0/20 …63,488
101.76.0.0 – 101.76.255.255101.76.0.0/1665,536
103.31.48.0 – 103.31.51.255103.31.48.0/221,024
103.137.60.0 – 103.137.60.255103.137.60.0/24256
110.64.0.0 – 110.65.255.255110.64.0.0/15131,072
111.114.0.0 – 111.117.255.255111.114.0.0/15, 111.116.0.0/15262,144
111.186.0.0 – 111.187.255.255111.186.0.0/15131,072
113.54.0.0 – 113.55.255.255113.54.0.0/15131,072
114.212.0.0 – 114.214.255.255114.212.0.0/15, 114.214.0.0/16196,608
115.24.0.0 – 115.25.208.255115.24.0.0/16, 115.25.0.0/17 …119,040
115.25.210.0 – 115.26.255.255115.25.210.0/23, 115.25.212.0/22 …77,312
115.27.254.0 – 115.27.254.255115.27.254.0/24256
115.155.0.0 – 115.158.255.255115.155.0.0/16, 115.156.0.0/15 …262,144
116.13.0.0 – 116.13.255.255116.13.0.0/1665,536
116.56.0.0 – 116.57.255.255116.56.0.0/15131,072
118.202.0.0 – 118.203.255.255118.202.0.0/15131,072
118.228.0.0 – 118.228.155.255118.228.0.0/17, 118.228.128.0/20 …39,936
118.228.160.0 – 118.228.239.255118.228.160.0/19, 118.228.192.0/19 …20,480
118.228.244.0 – 118.228.246.255118.228.244.0/23, 118.228.246.0/24768
2001:daa:9:: – 2001:daa:9:ffff:ffff:ffff:ffff:ffff2001:daa:9::/48IPv6
240a:a003:: – 240a:a003:ffff:ffff:ffff:ffff:ffff:ffff240a:a003::/32IPv6
240a:a016:: – 240a:a016:ffff:ffff:ffff:ffff:ffff:ffff240a:a016::/32IPv6
240a:a019:: – 240a:a019:ffff:ffff:ffff:ffff:ffff:ffff240a:a019::/32IPv6
240a:a01d:: – 240a:a01d:ffff:ffff:ffff:ffff:ffff:ffff240a:a01d::/32IPv6
240a:a041:: – 240a:a041:ffff:ffff:ffff:ffff:ffff:ffff240a:a041::/32IPv6
240a:a048:: – 240a:a048:ffff:ffff:ffff:ffff:ffff:ffff240a:a048::/32IPv6
240a:a060:: – 240a:a060:ffff:ffff:ffff:ffff:ffff:ffff240a:a060::/32IPv6
240a:a066:: – 240a:a066:ffff:ffff:ffff:ffff:ffff:ffff240a:a066::/32IPv6
240a:a0a9:: – 240a:a0a9:ffff:ffff:ffff:ffff:ffff:ffff240a:a0a9::/32IPv6
240a:a0b6:: – 240a:a0b6:ffff:ffff:ffff:ffff:ffff:ffff240a:a0b6::/32IPv6
240a:a0bd:: – 240a:a0bd:ffff:ffff:ffff:ffff:ffff:ffff240a:a0bd::/32IPv6
240a:a0f2:: – 240a:a0f2:ffff:ffff:ffff:ffff:ffff:ffff240a:a0f2::/32IPv6
240a:a0f5:: – 240a:a0f5:ffff:ffff:ffff:ffff:ffff:ffff240a:a0f5::/32IPv6
240a:a10a:: – 240a:a10a:ffff:ffff:ffff:ffff:ffff:ffff240a:a10a::/32IPv6
240a:a11a:: – 240a:a11a:ffff:ffff:ffff:ffff:ffff:ffff240a:a11a::/32IPv6
240a:a120:: – 240a:a120:ffff:ffff:ffff:ffff:ffff:ffff240a:a120::/32IPv6
240a:a1a2:: – 240a:a1a2:ffff:ffff:ffff:ffff:ffff:ffff240a:a1a2::/32IPv6
240a:a1b5:: – 240a:a1b5:ffff:ffff:ffff:ffff:ffff:ffff240a:a1b5::/32IPv6
240a:a1c5:: – 240a:a1c5:ffff:ffff:ffff:ffff:ffff:ffff240a:a1c5::/32IPv6
Showing 50 of 202 IPv4 and 20 of 169 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 3 Nov 2026