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。
AS4812 CHINANET-SH-AP
AS4812 是 China Telecom (Group)（CHINANET-SH-AP）的自治系统号，由 APNIC 分配。 目前宣告 498 个 IPv4 前缀（788万 个地址）和 99 个 IPv6 前缀。
- 名称CHINANET-SH-AP
- 持有者China Telecom (Group)
- 国家/地区
中国 - 注册机构APNIC
- 分配日期1996-01-09
- IPv4498 个前缀 · 788万 个地址
- IPv699 个前缀 · 317万 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498
- 36.111.0.0/20
- 43.240.124.0/24
- 43.240.192.0/22
- 43.240.196.0/22
- 43.242.96.0/23
- 43.247.100.0/24
- 43.247.101.0/24
- 43.247.102.0/24
- 43.247.103.0/24
- 43.254.44.0/22
- 43.254.106.0/24
- 43.254.152.0/24
- 43.254.220.0/24
- 43.254.221.0/24
- 43.254.222.0/24
- 43.254.223.0/24
- 45.115.144.0/22
- 45.124.124.0/22
- 45.253.26.0/24
- 45.253.27.0/24
- 58.32.0.0/14
- 58.32.0.0/16
- 58.32.0.0/17
- 58.32.128.0/17
- 58.33.0.0/16
- 58.33.218.0/24
- 58.34.0.0/16
- 58.34.26.0/24
- 58.34.164.0/24
- 58.35.0.0/16
- 58.35.0.0/17
- 58.35.128.0/17
- 58.36.0.0/14
- 58.37.0.0/16
- 58.38.0.0/16
- 58.40.0.0/16
- 58.41.0.0/16
- 58.41.0.0/17
- 59.153.92.0/22
- 61.129.0.0/16
- 61.129.0.0/17
- 61.129.128.0/17
- 61.151.0.0/16
- 61.151.0.0/17
- 61.151.128.0/17
- 61.151.238.0/23
- 61.152.0.0/16
- 61.165.0.0/16
IPv6 前缀99
- 2400:6e60:1301::/48
- 2400:9600:8800::/48
- 2403:9b00:2400::/48
- 2405:7040:6000::/48
- 240e:18::/33
- 240e:18:2::/48
- 240e:18:8000::/33
- 240e:19::/33
- 240e:19:8000::/33
- 240e:2e::/35
- 240e:2e:2000::/35
- 240e:2e:4000::/35
- 240e:2e:6000::/35
- 240e:58::/33
- 240e:58:8000::/33
- 240e:58:c000::/36
- 240e:59::/33
- 240e:e0::/32
- 240e:e0:f000::/36
- 240e:e1::/36
- 240e:e1:8000::/33
- 240e:e2::/35
- 240e:e3:8000::/33
- 240e:e5:8000::/33
- 240e:e5:8000::/48
- 240e:e5:8e00::/48
- 240e:e6::/32
- 240e:e6::/36
- 240e:106:c000::/36
- 240e:106:d000::/36
- 240e:106:e000::/36
- 240e:106:f000::/36
- 240e:108:11a1::/48
- 240e:108:11a2::/48
- 240e:108:4021::/48
- 240e:108:4022::/48
- 240e:108:4821::/48
- 240e:108:4822::/48
- 240e:146:c000::/36
- 240e:146:d000::/36
- 240e:146:e000::/36
- 240e:146:f000::/36
- 240e:186:c000::/36
- 240e:186:d000::/36
- 240e:186:e000::/36
- 240e:186:f000::/36
- 240e:1c6:c000::/36
- 240e:1c6:d000::/36
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
- AS4811 CHINANET-SHANGHAI-MAN
- 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