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。
AS4811 CHINANET-SHANGHAI-MAN
AS4811 是 China Telecom (Group)（CHINANET-SHANGHAI-MAN）的自治系统号，由 APNIC 分配。 目前宣告 1,511 个 IPv4 前缀（96.8万 个地址）和 97 个 IPv6 前缀。
- 名称CHINANET-SHANGHAI-MAN
- 持有者China Telecom (Group)
- 国家/地区
中国 - 注册机构APNIC
- 分配日期1999-05-12
- IPv41,511 个前缀 · 96.8万 个地址
- IPv697 个前缀 · 20,781 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1,511
- 14.103.0.0/21
- 14.103.8.0/21
- 14.103.16.0/21
- 14.103.24.0/21
- 14.103.32.0/21
- 14.103.40.0/21
- 14.103.48.0/21
- 14.103.56.0/21
- 14.103.64.0/21
- 14.103.72.0/21
- 14.103.80.0/21
- 14.103.88.0/21
- 14.103.96.0/21
- 14.103.104.0/21
- 14.103.112.0/21
- 14.103.120.0/21
- 14.103.128.0/21
- 14.103.136.0/21
- 14.103.144.0/21
- 14.103.152.0/21
- 14.103.160.0/21
- 14.103.168.0/21
- 14.103.176.0/21
- 14.103.184.0/21
- 14.103.192.0/21
- 14.103.200.0/21
- 14.103.208.0/21
- 14.103.216.0/21
- 14.103.224.0/21
- 14.103.232.0/21
- 14.103.240.0/21
- 14.103.248.0/21
- 27.109.124.0/22
- 36.111.16.0/20
- 43.240.126.0/23
- 43.254.44.0/23
- 43.254.46.0/23
- 45.115.44.0/22
- 45.124.124.0/23
- 45.124.126.0/23
- 59.153.92.0/23
- 59.153.94.0/23
- 61.129.6.0/24
- 61.129.7.0/24
- 61.129.8.0/24
- 61.129.9.0/24
- 61.129.10.0/24
- 61.129.11.0/24
IPv6 前缀97
- 2401:1d40:2000::/48
- 2401:1d40:2100::/48
- 2401:1d40:2f00::/48
- 2401:3480:2000::/48
- 2401:a140:1::/48
- 2402:f140:ff01::/48
- 2403:1ec0:1610::/48
- 2403:a100::/48
- 2403:a200:a1ff::/48
- 2405:1480:1000::/48
- 2406:d440:210::/44
- 2406:d440:ff00::/48
- 2409:27fb::/48
- 240e:18:10::/48
- 240e:18:11::/48
- 240e:18:41::/48
- 240e:18:43::/48
- 240e:18:44::/48
- 240e:18:50::/48
- 240e:e1:8000::/36
- 240e:e1:8000::/40
- 240e:e1:8200::/40
- 240e:e1:8300::/40
- 240e:e1:8400::/40
- 240e:e1:8500::/40
- 240e:e1:8600::/40
- 240e:e1:8900::/40
- 240e:e1:8a00::/40
- 240e:e1:8b00::/40
- 240e:e1:8c00::/40
- 240e:e1:8d00::/40
- 240e:e1:8f00::/40
- 240e:e1:9000::/40
- 240e:e1:9200::/40
- 240e:e1:9300::/40
- 240e:e1:9400::/40
- 240e:e1:9500::/40
- 240e:e1:9600::/40
- 240e:e1:9900::/40
- 240e:e1:9a00::/40
- 240e:e1:9b00::/40
- 240e:e1:9f00::/40
- 240e:e1:9f00::/48
- 240e:e1:a000::/36
- 240e:e1:b000::/36
- 240e:e1:c000::/40
- 240e:e1:c100::/40
- 240e:e1:c200::/40
同一机构的其他 ASN共 488 个
- AS4134 中国电信 163 骨干网
- AS4809 中国电信 CN2
- AS4812 CHINANET-SH-AP
- AS4813 BACKBONE-GUANGDONG-AP
- AS4816 CHINANET-IDC-GD
- AS4835 CHINANET-IDC-SN
- AS4847 CNIX-AP
- AS17633 CHINATELECOM-SD-AS-AP
- AS17638 CHINATELECOM-TJ-AS-AP
- AS17799 CHINATELECOM-LN-AS-AP
- AS17897 CHINATELECOM-HLJ-AS-AP
- AS23650 CHINANET-Jiangsu-Province-IDC
- AS23724 CHINANET-IDC-BJ-AP
- AS38283 CHINANET-SCIDC-AS-AP
- AS58461 CT-HangZhou-IDC
- AS58466 CT-Guangzhou-IDC
- AS58517 CHINATELECOM-CDMANetwork-BG-Beijing
- AS58518 CHINATELECOM-CDMANetwork-BG-Guangzhou
- AS58519 CHINATELECOM-Ctcloud
- AS58539 CHINATELECOM-Hebei-Langfang-IDC
- AS58540 CHINATELECOM-SHANDONG-JINAN-IDC
- AS58541 CHINATELECOM-SHANDONG-QINGDAO-IDC
- AS58542 CHINATELECOM-TIANJIN
- AS58543 CHINATELECOM-Guangdong-IDC