ASN 是什么？
ASN（自治系统号）是互联网上一个独立运行路由的网络的编号，比如一家运营商、一家云厂商、一所大学或一家大公司。每个 AS 通过 BGP 向邻居宣告自己负责的 IP 段，互联网上的其他网络就知道该把流量送到哪里。
AS 号由五大区域互联网注册机构（APNIC、RIPE NCC、ARIN、LACNIC、AFRINIC）分配。比如 AS4134 是中国电信 163 骨干网，AS13335 是 Cloudflare。
AS45102 阿里云（国际）
ALIBABA-CN-NET
AS45102 是 阿里云（国际）（ALIBABA-CN-NET）的自治系统号，由 APNIC 分配。 目前宣告 1,171 个 IPv4 前缀（557万 个地址）和 139 个 IPv6 前缀。
- 名称ALIBABA-CN-NET
- 持有者Alibaba (US) Technology Co., Ltd.
- 国家/地区
中国 - 注册机构APNIC
- 分配日期2008-02-01
- IPv41,171 个前缀 · 557万 个地址
- IPv6139 个前缀 · 159万 个 /48
- 注册组织
- 滥用投诉
- 最近更新
邻居
上游
下游
对等及其他
来自 RIPE 路由采集器看到的路径，按经过的路径数排序。
IPv4 前缀1,171
- 5.181.224.0/23
- 8.208.0.0/16
- 8.208.0.0/17
- 8.208.0.0/18
- 8.208.0.0/19
- 8.208.32.0/19
- 8.208.128.0/17
- 8.208.141.0/24
- 8.209.0.0/19
- 8.209.0.0/20
- 8.209.16.0/20
- 8.209.36.0/23
- 8.209.36.0/24
- 8.209.37.0/24
- 8.209.38.0/23
- 8.209.38.0/24
- 8.209.39.0/24
- 8.209.40.0/22
- 8.209.40.0/23
- 8.209.42.0/23
- 8.209.44.0/22
- 8.209.44.0/23
- 8.209.46.0/23
- 8.209.48.0/20
- 8.209.48.0/21
- 8.209.56.0/21
- 8.209.64.0/18
- 8.209.64.0/19
- 8.209.96.0/19
- 8.209.128.0/18
- 8.209.128.0/19
- 8.209.160.0/19
- 8.209.192.0/18
- 8.209.192.0/19
- 8.209.224.0/19
- 8.210.0.0/16
- 8.210.0.0/17
- 8.210.128.0/17
- 8.210.240.0/24
- 8.211.0.0/17
- 8.211.0.0/18
- 8.211.64.0/18
- 8.211.80.0/21
- 8.211.88.0/21
- 8.211.96.0/21
- 8.211.104.0/21
- 8.211.128.0/18
- 8.211.128.0/19
IPv6 前缀139
- 2400:3200::/48
- 2400:3200:baba::/48
- 2400:b200:4100::/48
- 2400:b200:4101::/48
- 2400:b200:4102::/48
- 2400:b200:4103::/48
- 2401:b180:4100::/48
- 2404:2280:1000::/36
- 2404:2280:1000::/37
- 2404:2280:1800::/37
- 2404:2280:2000::/36
- 2404:2280:2000::/37
- 2404:2280:2800::/37
- 2404:2280:3000::/36
- 2404:2280:3000::/37
- 2404:2280:3800::/37
- 2404:2280:4000::/36
- 2404:2280:4000::/37
- 2404:2280:4800::/37
- 2408:4000:101::/48
- 2408:4000:102::/48
- 2408:4000:1000::/48
- 2408:4009:500::/48
- 240b:4000::/32
- 240b:4000::/33
- 240b:4000:8000::/33
- 240b:4000:fffe::/48
- 240b:4000:ffff::/48
- 240b:4001::/32
- 240b:4001::/33
- 240b:4001:8000::/33
- 240b:4002::/32
- 240b:4002::/33
- 240b:4002:8000::/33
- 240b:4002:fffe::/48
- 240b:4002:ffff::/48
- 240b:4004::/32
- 240b:4004::/33
- 240b:4004:8000::/33
- 240b:4005::/32
- 240b:4005::/33
- 240b:4005:8000::/33
- 240b:4005:fffe::/48
- 240b:4005:ffff::/48
- 240b:4006::/48
- 240b:4006:1000::/44
- 240b:4006:1000::/45
- 240b:4006:1000::/47
同一机构的其他 ASN共 1,213 个
- AS4611 xinhuanet
- AS7640 CITICNET
- AS7641 CHINABTN
- AS9306 CIETNET
- AS9308 CHINA-ABITCOOL
- AS9389 CGWNET
- AS9394 CTTNET
- AS9802 CHINA-ABITCOOL
- AS9803 JINGXUN
- AS9805 ENS-PEK
- AS9807 GOVSTATS
- AS9809 NovaNetwork
- AS9810 TNSNET
- AS9811 DRCSCNET
- AS9812 CNNIC-CN-COLNET
- AS9814 FibrLINK
- AS9818 IFLAB
- AS9939 DYXNET-CN
- AS10212 CHINAENTERCOM
- AS17428 CHINA-ABITCOOL
- AS17429 BGCTVNET
- AS17442 CHINANETCENTER-AP
- AS17490 ETFiberNet
- AS17775 STN-CN