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AS38345 Internet Domain Name System Beijing Engineering Resrarch Center Ltd.

ZDNS - Internet Domain Name System Beijing Engineering Resrarch Center Ltd. · registered in China

IPv4 addresses6,1449 prefixes · <0.001% of announced IPv4
Rank in China#268largest network in CN by IPv4 space, of 601 · <0.01% of CN
Rank worldwide#12,331of 79,396 networks with IPv4
IPv612 x /489 prefixes
CountryChina5,117 ASNs registered there

IPv4 prefixes

All 9 prefixes, in address order.

  • 1.8.1.0/24
  • 1.8.8.0/24
  • 150.242.156.0/23
  • 202.173.8.0/22
  • 202.173.14.0/23
  • 203.99.20.0/22
  • 203.99.24.0/21
  • 203.119.80.0/24
  • 203.119.83.0/24

IPv6 prefixes

All 9 prefixes.

  • 2401:8d00::/47
  • 2401:8d00:3::/48
  • 2401:8d00:4::/47
  • 2401:8d00:7::/48
  • 2401:8d00:8::/47
  • 2401:8d00:b::/48
  • 2401:8d00:c::/48
  • 2401:8d00:f::/48
  • 2401:8d00:12::/48

Other ASNs named Internet Domain Name System Beijing Engineering Resrarch Center Ltd.

1 other network uses the same organisation name; together with AS38345 they announce 7,168 IPv4 addresses.

ASNNameIPv4 addresses
AS24149ZDNS - Internet Domain Name System Beijing Engineering Resrarch Center Ltd. CN1,024

Similar-sized networks in China

ASNNameIPv4 addresses
AS132536#265 CHINANET-TIANJIN-MAN-NEW - China Telecom6,400
AS58854#266 kaopy - Kaopu Cloud6,400
AS9807#267 GOVSTATS - Data Management Centre National Bureau of Statistics of China6,144
AS18242#269 CDIH - Chengdu Information Harbor Co., Ltd6,144
AS59009#270 WXData - QingDao WangXin Telcom Corp. Limited6,144
AS151300#271 AS151300-85 - China Internet Network Information Center6,144

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