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AS4837
AS4837 CHINA UNICOM China169 Backbone
CHINA169-Backbone - CHINA UNICOM China169 Backbone · registered in China
IPv4 addresses 57,221,376 3,784 prefixes · 1.826% of announced IPv4
Rank in China #2 largest network in CN by IPv4 space, of 601 · 19.58% of CN
Rank worldwide #6 of 79,396 networks with IPv4
IPv6 396 x /32 (26,012,332 x /48) 2,159 prefixes
Country China 5,117 ASNs registered there
Similar-sized networks in China
ASN Name IPv4 addresses
AS4134 #1 CHINANET-BACKBONE - No.31,Jin-rong Street99,036,416
AS9808 #3 CHINAMOBILE-CN - China Mobile Communications Group Co., Ltd.17,288,448
AS4538 #4 ERX-CERNET-BKB - China Education and Research Network Center16,445,696
AS37963 #5 ALIBABA-CN-NET - Hangzhou Alibaba Advertising Co.,Ltd.9,425,920
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