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AS38365 Beijing Baidu Netcom Science and Technology Co., Ltd.

Baidu - Beijing Baidu Netcom Science and Technology Co., Ltd. · registered in China

IPv4 addresses340,73662 prefixes · 0.011% of announced IPv4
Rank in China#55largest network in CN by IPv4 space, of 601 · 0.12% of CN
Rank worldwide#727of 79,396 networks with IPv4
IPv61,024 x /32 (67,174,376 x /48)92 prefixes
CountryChina5,117 ASNs registered there
Open AS38365 in ASN lookup Look up an IP in this network (42.199.240.1) All networks in China

IPv4 prefixes

All 62 prefixes, in address order.

  • 42.199.240.0/22
  • 106.12.0.0/17
  • 106.12.128.0/18
  • 106.12.192.0/19
  • 106.12.224.0/20
  • 106.12.240.0/23
  • 106.12.242.0/23
  • 106.12.244.0/22
  • 106.13.0.0/17
  • 106.13.128.0/18
  • 106.13.192.0/19
  • 106.13.224.0/20
  • 106.13.240.0/22
  • 119.75.208.0/21
  • 119.75.216.0/24
  • 119.75.217.0/24
  • 119.75.218.0/23
  • 119.75.220.0/23
  • 119.75.222.0/24
  • 119.75.223.0/24
  • 120.48.0.0/16
  • 120.49.0.0/18
  • 120.49.64.0/19
  • 120.49.96.0/19
  • 120.49.196.0/22
  • 120.49.216.0/21
  • 120.49.224.0/19
  • 180.76.16.0/20
  • 180.76.32.0/21
  • 180.76.40.0/21
  • 180.76.48.0/20
  • 180.76.64.0/21
  • 180.76.72.0/22
  • 180.76.77.0/24
  • 180.76.78.0/23
  • 180.76.80.0/20
  • 180.76.96.0/20
  • 180.76.112.0/21
  • 180.76.120.0/23
  • 180.76.122.0/23
  • 180.76.124.0/22
  • 180.76.128.0/18
  • 180.76.192.0/22
  • 180.76.196.0/23
  • 180.76.200.0/21
  • 180.76.208.0/23
  • 180.76.210.0/23
  • 180.76.212.0/22
  • 180.76.216.0/21
  • 180.76.224.0/19
  • 182.61.0.0/18
  • 182.61.130.0/23
  • 182.61.132.0/22
  • 182.61.136.0/21
  • 182.61.144.0/21
  • 182.61.152.0/21
  • 182.61.200.0/21
  • 182.61.208.0/20
  • 182.61.224.0/20
  • 182.61.240.0/21
  • 182.61.248.0/21
  • 202.181.120.0/22

IPv6 prefixes

All 92 prefixes.

  • 2400:da00::/38
  • 2400:da00:400::/48
  • 2400:da00:401::/48
  • 2400:da00:402::/47
  • 2400:da00:404::/48
  • 2400:da00:405::/48
  • 2400:da00:406::/47
  • 2400:da00:408::/45
  • 2400:da00:410::/44
  • 2400:da00:420::/43
  • 2400:da00:440::/42
  • 2400:da00:480::/41
  • 2400:da00:500::/40
  • 2400:da00:600::/39
  • 2400:da00:800::/37
  • 2400:da00:1000::/36
  • 2400:da00:2000::/35
  • 2400:da00:4000::/34
  • 2400:da00:8000::/33
  • 240c:4000::/25
  • 240c:4080::/29
  • 240c:4088::/32
  • 240c:4089::/32
  • 240c:408a::/31
  • 240c:408c::/32
  • 240c:408d::/35
  • 240c:408d:2000::/36
  • 240c:408d:3000::/36
  • 240c:408d:4000::/34
  • 240c:408d:8000::/33
  • 240c:408e::/31
  • 240c:4090::/29
  • 240c:4098::/30
  • 240c:409c::/31
  • 240c:409e::/32
  • 240c:409f:4::/46
  • 240c:409f:8::/45
  • 240c:409f:10::/44
  • 240c:409f:20::/43
  • 240c:409f:40::/42
  • 240c:409f:80::/41
  • 240c:409f:100::/40
  • 240c:409f:200::/39
  • 240c:409f:400::/38
  • 240c:409f:800::/37
  • 240c:409f:1000::/47
  • 240c:409f:1002::/47
  • 240c:409f:1004::/46
  • 240c:409f:1008::/45
  • 240c:409f:1010::/44
  • 240c:409f:1020::/43
  • 240c:409f:1040::/42
  • 240c:409f:1080::/41
  • 240c:409f:1100::/40
  • 240c:409f:1200::/39
  • 240c:409f:1400::/38
  • 240c:409f:1800::/37
  • 240c:409f:2004::/46
  • 240c:409f:2008::/45
  • 240c:409f:2010::/44
  • 240c:409f:2020::/43
  • 240c:409f:2040::/42
  • 240c:409f:2080::/41
  • 240c:409f:2100::/40
  • 240c:409f:2200::/39
  • 240c:409f:2400::/38
  • 240c:409f:2800::/37
  • 240c:409f:3008::/45
  • 240c:409f:3010::/44
  • 240c:409f:3020::/43
  • 240c:409f:3040::/42
  • 240c:409f:3080::/41
  • 240c:409f:3100::/40
  • 240c:409f:3200::/39
  • 240c:409f:3400::/38
  • 240c:409f:3800::/37
  • 240c:409f:4008::/45
  • 240c:409f:4010::/44
  • 240c:409f:4020::/43
  • 240c:409f:4040::/42
  • 240c:409f:4080::/41
  • 240c:409f:4100::/40
  • 240c:409f:4200::/39
  • 240c:409f:4400::/38
  • 240c:409f:4800::/37
  • 240c:409f:5000::/36
  • 240c:409f:6000::/35
  • 240c:409f:8000::/33
  • 240c:40a0::/27
  • 240c:40c0::/26
  • 240c:4100::/24
  • 240c:4200::/23

Other ASNs named Beijing Baidu Netcom Science and Technology Co., Ltd.

1 other network uses the same organisation name; together with AS38365 they announce 382,208 IPv4 addresses.

ASNNameIPv4 addresses
AS55967Baidu - Beijing Baidu Netcom Science and Technology Co., Ltd. CN41,472

Similar-sized networks in China

ASNNameIPv4 addresses
AS132525#52 CMNET-HEILONGJIANG-CN - HeiLongJiang Mobile Communication Company Limited419,840
AS58461#53 CT-HangZhou-IDC - No.288,Fu-chun Road364,544
AS135629#54 WESTCLOUDDATA - Ningxia West Cloud Data Technology Co.Ltd.354,816
AS140308#56 CHINATELECOM-GUANGDONG-ZHUHAI-5G-NETWORK - CHINATELECOM Guangdong province Zhuhai 5G network326,656
AS140318#57 CHINATELECOM-GUANGDONG-HEYUAN-5G-NETWORK - CHINATELECOM Guangdong province Heyuan 5G network319,744
AS9308#58 CHINA-ABITCOOL - Abitcool(China) Inc.304,896

IP-to-ASN data: iptoasn.com (public domain). Snapshot downloaded 2026-11-11, refreshed daily. Ranges are what each network announces in BGP, not registry allocations. Data sources