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AS38345
AS38345 Internet Domain Name System Beijing Engineering Resrarch Center Ltd.
ZDNS - Internet Domain Name System Beijing Engineering Resrarch Center Ltd. · registered in China
IPv4 addresses 6,144 9 prefixes · <0.001% of announced IPv4
Rank in China #268 largest network in CN by IPv4 space, of 601 · <0.01% of CN
Rank worldwide #12,331 of 79,396 networks with IPv4
IPv6 12 x /48 9 prefixes
Country China 5,117 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.
ASN Name IPv4 addresses
AS24149 ZDNS - Internet Domain Name System Beijing Engineering Resrarch Center Ltd. CN 1,024
Similar-sized networks in China
ASN Name IPv4 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