说明
Cloudflare拥有很丰富的IP资源，即使不按照默认的解析结果、自己指定其他IP往往也能正常工作，这一特性给开发者带来了很大的便利。又因为使用了Anycast技术，每一个IP在不同地区访问，被路由到的提供服务的地域（colo）也各不相同。本来想全面分析一下各IP段在不同运营商的延时和下载速度规律，但因为晚间拥堵时段的规律不太明显，所以先把服务地区的规律给确定一下。
在官网公示的列表中，目前发现大陆地区有响应的有：
104.16.0.0/12（最常见）
172.64.0.0/13（最常见）
162.158.0.0/15
198.41.128.0/17
141.101.64.0/18
173.245.48.0/20
190.93.240.0/20
103.21.244.0/22
这些段有的只有部分有相应
此外，还有用于DNS的：
1.0.0.0/24
1.1.1.0/24
这两段如果访问没有被阻断的话，一般也是具有完整功能的。
下述结果的测试地点是长三角地区，时间为22:00-24:00，皆为数据流量。不同地区、不同时间的结果可能会有差异。
联通
大多数可访问段来自LAX
已知的例外：
104.16.32.0-104.16.63.255SJC
104.17.0.0-104.17.15.255SJC
104.19.144.0-104.19.159.255SJC
104.20.0.0/16SJC
104.22.0.0-104.22.63.255SJC
104.22.64.0-104.22.79.255FRA
104.23.96.0-104.23.143.255SJC
104.24.0.0/16MUC、SJC、LAX
104.26.0.0/16SJC
104.27.0.0/16MUC、SJC、SEA、FRA
172.67.0.0/16SJC、FRA、LAX
103.21.244.0/24SJC
141.101.113.0/24SJC
162.159.36.0/24SJC
162.159.46.0/24SJC
162.159.160.0/24LHR
162.159.224.0-162.159.239.0MUC
不同IP的下载速率差异较小，中位数为250KB/s，SJC、MUC平均较快
电信
大多数可访问段来自LAX
已知的例外：
104.16.32.0-104.16.63.255SJC
104.16.144.0-104.16.159.255SJC
104.18.16.0-104.18.31.255SJC
103.21.244.0/24FRA或DUS
162.159.36.0/24SJC
162.159.46.0/24SJC
162.159.128.0-162.159.200.0AMS、FRA、LHR
198.41.211.0/24LHR
不同IP的下载速率差异较大，中位数为150KB/s，地域分布规律不明显，最快最慢皆出自LAX
顺便一提，测试中只有电信4G的1.1.1.0/24是不通的
移动
可访问段来自的地域比较零散
1.0.0.0/24LAX
1.1.1.0/24LAX
104.16.0.0/12大多数为LAX、SJC交替出现
在此基础上，还会参杂有：
104.16.0.0/16HKG、SEA
104.17.0.0/16HKG、SEA
104.18.0.0/16FRA、HKG、SEA
104.19.0.0/16HKG
104.20.0.0/16SIN
104.24.0.0/16SIN
104.26.0.0/16SEA
104.31.0.0/16SEA
172.64.0.0/13大多数为LAX、SJC交替出现
除了172.64.64.0-172.64.79.0为HKG
103.21.244.0/24SJC
141.101.64.0/18SJC、LAX、HKG
162.158.0.0/15SJC、LAX
173.245.48.0/20LAX
190.93.240.0/20HKG
198.41.128.0/17SJC、LAX、HKG
不同IP的下载速率差异较大，中位数为73KB/s，SEA平均较快，个别HKG速度很快
工具
自己写的CloudflareAnycastIP批量在线测试工具
功能说明：https://www.v2ex.com/t/713840
全/24段：http://ip.flares.cloud/whole/?0
-----------------------------------------------------
**网友回复**:
感谢大佬分享
<BR><BR><BR> **网友回复**:
总算有人再走我的老路了，对了，别忘记走一下trace看看路线是谁，接入商的影响挺大的，特别移动，有ntt狗根这种比较慢的
网友回复:
有意思，幫你側了Hinet家寬36.227.156.*
IPaddress Colo MeanRespondTime MeanDownloadSpeed
"1.0.0.0
" TPE 144.0ms(warm-up) 6233.8KB/s
"1.1.1.0
" TPE 303.0ms(warm-up) 3740.3KB/s
"104.16.0.0
" TPE 246.0ms(warm-up) 2036.8KB/s
"104.16.32.0
" TPE 163.0ms(warm-up) 4957.0KB/s
"104.16.64.0
" TPE 142.0ms(warm-up) 3956.1KB/s
"104.16.96.0
" TPE 208.0ms(warm-up) 5437.4KB/s
"104.16.128.0
" TPE 274.0ms(warm-up) 3918.4KB/s
"104.16.160.0
" TPE 257.0ms(warm-up) 3968.8KB/s
"104.16.192.0
" TPE 240.0ms(warm-up) 3786.2KB/s
"104.16.224.0
" TPE 309.0ms(warm-up) 5390.0KB/s
"104.17.0.0
" TPE 288.0ms(warm-up) 3981.6KB/s
"104.17.32.0
" TPE 195.0ms(warm-up) 3684.5KB/s
"104.17.64.0
" TPE 174.0ms(warm-up) 3893.7KB/s
"104.17.96.0
" TPE 239.0ms(warm-up) 3981.6KB/s
"104.17.128.0
" TPE 309.0ms(warm-up) 4472.1KB/s
"104.17.160.0
" TPE 291.0ms(warm-up) 4007.5KB/s
"104.17.192.0
" TPE 195.0ms(warm-up) 5610.5KB/s
"104.17.224.0
" TPE 255.0ms(warm-up) 4747.3KB/s
"104.18.0.0
" TPE 455.0ms(warm-up) 6895.5KB/s
"104.18.32.0
" LAX 697.0ms(warm-up) 1318.7KB/s
"104.18.64.0
" TPE 99.0ms(warm-up) 7218.1KB/s
"104.18.96.0
" TPE 322.0ms(warm-up) 6233.8KB/s
"104.18.128.0
" TPE 311.0ms(warm-up) 6110.4KB/s
"104.18.160.0
" TPE 291.0ms(warm-up) 6857.2KB/s
"104.18.192.0
" TPE 276.0ms(warm-up) 6428.6KB/s
"104.18.224.0
" TPE 258.0ms(warm-up) 7053.1KB/s
"104.19.0.0
" HKG 407.0ms(warm-up) 3093.5KB/s
"104.19.32.0
" HKG 390.0ms(warm-up) 3598.5KB/s
"104.19.64.0
" HKG 456.0ms(warm-up) 2378.2KB/s
"104.19.96.0
" HKG 360.0ms(warm-up) 1521.9KB/s
"104.19.128.0
" LAX 609.0ms(warm-up) 1313.1KB/s
"104.19.160.0
" TPE 240.0ms(warm-up) 6636.0KB/s
"104.19.192.0
" TPE 223.0ms(warm-up) 7134.7KB/s
"104.19.224.0
" TPE 227.0ms(warm-up) 6329.7KB/s
"104.20.0.0
" TPE 396.0ms(warm-up) 6744.8KB/s
"104.20.32.0
" TPE 290.0ms(warm-up) 6857.2KB/s
"104.20.64.0
" TPE 202.0ms(warm-up) 6636.0KB/s
"104.20.96.0
" TPE 259.0ms(warm-up) 6080.3KB/s
"104.20.128.0
" TPE 238.0ms(warm-up) 6171.5KB/s
"104.20.160.0
" TPE 141.0ms(warm-up) 6140.8KB/s
"104.20.192.0
" TPE 204.0ms(warm-up) 5038.0KB/s
"104.20.224.0
" TPE 113.0ms(warm-up) 6819.3KB/s
"104.22.0.0
" LAX 674.0ms(warm-up) 1327.2KB/s
"104.22.32.0
" LAX 669.0ms(warm-up) 1410.6KB/s
"104.22.64.0
" LAX 1438.0ms(warm-up) 1520.1KB/s
"104.23.96.0
" TPE 292.0ms(warm-up) 5822.2KB/s
"104.23.128.0
" LAX 501.0ms(warm-up) 1161.1KB/s
"104.24.0.0
" LAX 641.0ms(warm-up) 1296.5KB/s
"104.24.32.0
" LAX 547.0ms(warm-up) 1436.9KB/s
"104.24.64.0
" LAX 688.0ms(warm-up) 1628.4KB/s
"104.24.96.0
" LAX 506.0ms(warm-up) 1311.7KB/s
"104.24.128.0
" LAX 647.0ms(warm-up) 1552.6KB/s
"104.24.160.0
" LAX 643.0ms(warm-up) 1521.9KB/s
"104.24.192.0
" LAX 621.0ms(warm-up) 1440.3KB/s
"104.24.224.0
" LAX 689.0ms(warm-up) 1362.4KB/s
"104.25.0.0
" LAX 593.0ms(warm-up) 1216.1KB/s
"104.25.32.0
" LAX 824.0ms(warm-up) 1317.3KB/s
"104.25.64.0
" LAX 638.0ms(warm-up) 1353.4KB/s
"104.25.96.0
" LAX 710.0ms(warm-up) 1507.1KB/s
"104.25.128.0
" LAX 687.0ms(warm-up) 1325.8KB/s
"104.25.160.0
" LAX 671.0ms(warm-up) 1483.5KB/s
"104.25.192.0
" LAX 742.0ms(warm-up) 1430.2KB/s
"104.25.224.0
" LAX 646.0ms(warm-up) 1570.4KB/s
"104.26.0.0
" LAX 622.0ms(warm-up) 1362.4KB/s
"104.27.0.0
" LAX 604.0ms(warm-up) 1529.5KB/s
"104.27.32.0
" LAX 756.0ms(warm-up) 1353.4KB/s
"104.27.64.0
" LAX 660.0ms(warm-up) 1508.9KB/s
"104.27.96.0
" LAX 642.0ms(warm-up) 1273.8KB/s
"104.27.128.0
" NRT 465.0ms(warm-up) 2582.2KB/s
"104.27.160.0
" LAX 690.0ms(warm-up) 1322.9KB/s
"104.27.192.0
" LAX 675.0ms(warm-up) 1354.9KB/s
"104.28.0.0
" LAX 655.0ms(warm-up) 1330.1KB/s
"104.28.32.0
" LAX 643.0ms(warm-up) 1314.5KB/s
"104.28.64.0
" LAX 793.0ms(warm-up) 1256.9KB/s
"104.28.96.0
" LAX 689.0ms(warm-up) 1328.6KB/s
"104.28.128.0
" LAX 672.0ms(warm-up) 1349.0KB/s
"104.28.160.0
" LAX 738.0ms(warm-up) 1335.8KB/s
"104.28.192.0
" LAX 721.0ms(warm-up) 1338.7KB/s
"104.28.224.0
" LAX 627.0ms(warm-up) 1314.5KB/s
"104.31.0.0
" HKG 354.0ms(warm-up) 2798.9KB/s
"104.31.64.0
" LAX 706.0ms(warm-up) 1330.1KB/s
"104.31.128.0
" LAX 688.0ms(warm-up) 1335.8KB/s
"104.31.160.0
" LAX 674.0ms(warm-up) 1321.5KB/s
"104.31.192.0
" LAX 609.0ms(warm-up) 1302.0KB/s
"104.31.224.0
" LAX 774.0ms(warm-up) 968.8KB/s
"172.64.64.0
" HKG 425.0ms(warm-up) 2360.0KB/s
"172.64.96.0
" SIN 490.0ms(warm-up) 1702.5KB/s
"172.64.128.0
" SIN 556.0ms(warm-up) 1994.0KB/s
"172.64.160.0
" LAX 616.0ms(warm-up) 1185.7KB/s
"172.64.192.0
" LAX 687.0ms(warm-up) 1175.5KB/s
"172.67.0.0
" LAX 672.0ms(warm-up) 1269.9KB/s
"172.67.32.0
" LAX 739.0ms(warm-up) 1088.4KB/s
"172.67.64.0
" LAX 720.0ms(warm-up) 1235.5KB/s
"172.67.96.0
" LAX 625.0ms(warm-up) 1467.7KB/s
"172.67.128.0
" LAX 604.0ms(warm-up) 1225.7KB/s
"172.67.160.0
" LAX 671.0ms(warm-up) 1289.8KB/s
"172.67.192.0
" LAX 650.0ms(warm-up) 1360.9KB/s
"172.67.224.0
" LAX 725.0ms(warm-up) 1230.6KB/s
"103.21.244.0
" Timeout Error
"141.101.113.0
" TPE 276.0ms(warm-up) 7134.7KB/s
"141.101.120.0
" NRT 419.0ms(warm-up) 3526.6KB/s
"162.159.36.0
" TPE 329.0ms(warm-up) 7218.1KB/s
"162.159.46.0
" TPE 304.0ms(warm-up) 7391.0KB/s
"162.159.128.0
" TPE 287.0ms(warm-up) 6744.8KB/s
"162.159.152.0
" TPE 269.0ms(warm-up) 7391.0KB/s
"162.159.160.0
" LHR 1190.0ms(warm-up) 420.5KB/s
"162.159.200.0
" HKG 388.0ms(warm-up) 2960.0KB/s
"162.159.224.0
" LAX 686.0ms(warm-up) 1354.9KB/s
"172.64.36.0
" TPE 240.0ms(warm-up) 6895.5KB/s
"173.245.49.0
" Timeout Error
"190.93.244.0
" TPE 900.0ms(warm-up) 5058.6KB/s
"198.41.208.0
" TPE 291.0ms(warm-up) 4859.5KB/s
"198.41.211.0
" TPE 196.0ms(warm-up) 5058.6KB/s
198.41.220.0 TPE 372.0ms(warm-up) 4977.0KB/s
网友回复:
這是台灣之星4G的測試結果180.217.83.*
IPaddress Colo MeanRespondTime MeanDownloadSpeed
"1.0.0.0
" TPE 318.0ms(warm-up) 707.3KB/s
"1.1.1.0
" TPE 279.0ms(warm-up) 568.3KB/s
"104.16.0.0
" TPE 289.0ms(warm-up) 572.2KB/s
"104.16.32.0
" TPE 509.0ms(warm-up) 711.4KB/s
"104.16.64.0
" TPE 281.0ms(warm-up) 751.7KB/s
"104.16.96.0
" TPE 123.0ms(warm-up) 720.5KB/s
"104.16.128.0
" TPE 281.0ms(warm-up) 789.7KB/s
"104.16.160.0
" TPE 305.0ms(warm-up) 749.0KB/s
"104.16.192.0
" TPE 290.0ms(warm-up) 773.4KB/s
"104.16.224.0
" TPE 350.0ms(warm-up) 785.7KB/s
"104.17.0.0
" TPE 329.0ms(warm-up) 707.7KB/s
"104.17.32.0
" TPE 232.0ms(warm-up) 813.6KB/s
"104.17.64.0
" TPE 213.0ms(warm-up) 761.4KB/s
"104.17.96.0
" TPE 298.0ms(warm-up) 702.1KB/s
"104.17.128.0
" TPE 284.0ms(warm-up) 693.0KB/s
"104.17.160.0
" TPE 151.0ms(warm-up) 683.1KB/s
"104.17.192.0
" TPE 311.0ms(warm-up) 773.9KB/s
"104.17.224.0
" TPE 431.0ms(warm-up) 691.5KB/s
"104.18.0.0
" TPE 441.0ms(warm-up) 571.4KB/s
"104.18.32.0
" NRT 2441.0ms(warm-up) 690.3KB/s
"104.18.64.0
" TPE 407.0ms(warm-up) 555.2KB/s
"104.18.96.0
" TPE 244.0ms(warm-up) 540.6KB/s
"104.18.128.0
" TPE 184.0ms(warm-up) 651.3KB/s
"104.18.160.0
" TPE 355.0ms(warm-up) 721.0KB/s
"104.18.192.0
" TPE 359.0ms(warm-up) 684.2KB/s
"104.18.224.0
" TPE 235.0ms(warm-up) 711.0KB/s
"104.19.0.0
" TPE 335.0ms(warm-up) 650.3KB/s
"104.19.32.0
" TPE 180.0ms(warm-up) 793.3KB/s
"104.19.64.0
" TPE 286.0ms(warm-up) 620.6KB/s
"104.19.96.0
" TPE 348.0ms(warm-up) 599.5KB/s
"104.19.128.0
" HKG 377.0ms(warm-up) 649.6KB/s
"104.19.160.0
" TPE 354.0ms(warm-up) 688.4KB/s
"104.19.192.0
" TPE 268.0ms(warm-up) 503.4KB/s
"104.19.224.0
" TPE 235.0ms(warm-up) 677.4KB/s
"104.20.0.0
" TPE 299.0ms(warm-up) 551.5KB/s
"104.20.32.0
" TPE 304.0ms(warm-up) 686.9KB/s
"104.20.64.0
" TPE 314.0ms(warm-up) 670.1KB/s
"104.20.96.0
" TPE 186.0ms(warm-up) 726.1KB/s
"104.20.128.0
" TPE 280.0ms(warm-up) 658.6KB/s
"104.20.160.0
" TPE 208.0ms(warm-up) 633.0KB/s
"104.20.192.0
" TPE 401.0ms(warm-up) 767.1KB/s
"104.20.224.0
" TPE 339.0ms(warm-up) 749.4KB/s
"104.22.0.0
" TPE 227.0ms(warm-up) 619.9KB/s
"104.22.32.0
" TPE 193.0ms(warm-up) 847.7KB/s
"104.22.64.0
" TPE 391.0ms(warm-up) 611.0KB/s
"104.23.96.0
" TPE 297.0ms(warm-up) 650.3KB/s
"104.23.128.0
" HKG 283.0ms(warm-up) 783.7KB/s
"104.24.0.0
" NRT 379.0ms(warm-up) 745.4KB/s
"104.24.32.0
" NRT 373.0ms(warm-up) 791.2KB/s
"104.24.64.0
" NRT 231.0ms(warm-up) 959.8KB/s
"104.24.96.0
" NRT 320.0ms(warm-up) 745.8KB/s
"104.24.128.0
" NRT 231.0ms(warm-up) 771.9KB/s
"104.24.160.0
" KIX 198.0ms(warm-up) 957.6KB/s
"104.24.192.0
" NRT 385.0ms(warm-up) 868.0KB/s
"104.24.224.0
" NRT 252.0ms(warm-up) 871.1KB/s
"104.25.0.0
" NRT 435.0ms(warm-up) 657.6KB/s
"104.25.32.0
" NRT 532.0ms(warm-up) 926.7KB/s
"104.25.64.0
" NRT 375.0ms(warm-up) 888.0KB/s
"104.25.96.0
" NRT 435.0ms(warm-up) 831.2KB/s
"104.25.128.0
" NRT 375.0ms(warm-up) 884.8KB/s
"104.25.160.0
" NRT 314.0ms(warm-up) 936.5KB/s
"104.25.192.0
" NRT 356.0ms(warm-up) 836.2KB/s
"104.25.224.0
" NRT 460.0ms(warm-up) 917.0KB/s
"104.26.0.0
" NRT 223.0ms(warm-up) 820.1KB/s
"104.27.0.0
" NRT 330.0ms(warm-up) 971.9KB/s
"104.27.32.0
" NRT 584.0ms(warm-up) 828.4KB/s
"104.27.64.0
" NRT 374.0ms(warm-up) 861.3KB/s
"104.27.96.0
" NRT 430.0ms(warm-up) 879.1KB/s
"104.27.128.0
" NRT 355.0ms(warm-up) 871.7KB/s
"104.27.160.0
" NRT 324.0ms(warm-up) 759.6KB/s
"104.27.192.0
" HKG 461.0ms(warm-up) 770.0KB/s
"104.28.0.0
" NRT 484.0ms(warm-up) 768.6KB/s
"104.28.32.0
" HKG 400.0ms(warm-up) 746.7KB/s
"104.28.64.0
" HKG 381.0ms(warm-up) 675.2KB/s
"104.28.96.0
" NRT 531.0ms(warm-up) 709.0KB/s
"104.28.128.0
" KIX 376.0ms(warm-up) 775.3KB/s
"104.28.160.0
" KIX 574.0ms(warm-up) 667.9KB/s
"104.28.192.0
" HKG 354.0ms(warm-up) 748.1KB/s
"104.28.224.0
" HKG 353.0ms(warm-up) 638.9KB/s
"104.31.0.0
" NRT 381.0ms(warm-up) 885.4KB/s
"104.31.64.0
" NRT 231.0ms(warm-up) 902.9KB/s
"104.31.128.0
" NRT 248.0ms(warm-up) 824.5KB/s
"104.31.160.0
" NRT 352.0ms(warm-up) 767.1KB/s
"104.31.192.0
" NRT 559.0ms(warm-up) 860.1KB/s
"104.31.224.0
" NRT 453.0ms(warm-up) 644.5KB/s
"172.64.64.0
" TPE 295.0ms(warm-up) 749.0KB/s
"172.64.96.0
" NRT 371.0ms(warm-up) 801.0KB/s
"172.64.128.0
" NRT 347.0ms(warm-up) 797.9KB/s
"172.64.160.0
" NRT 255.0ms(warm-up) 917.0KB/s
"172.64.192.0
" NRT 347.0ms(warm-up) 922.5KB/s
"172.67.0.0
" NRT 373.0ms(warm-up) 933.0KB/s
"172.67.32.0
" NRT 240.0ms(warm-up) 928.7KB/s
"172.67.64.0
" NRT 403.0ms(warm-up) 914.3KB/s
"172.67.96.0
" NRT 266.0ms(warm-up) 928.0KB/s
"172.67.128.0
" NRT 392.0ms(warm-up) 840.2KB/s
"172.67.160.0
" NRT 200.0ms(warm-up) 705.7KB/s
"172.67.192.0
" NRT 230.0ms(warm-up) 774.8KB/s
"172.67.224.0
" NRT 361.0ms(warm-up) 796.3KB/s
"103.21.244.0
" TPE 194.0ms(warm-up) 676.3KB/s
"141.101.113.0
" TPE 188.0ms(warm-up) 765.7KB/s
"141.101.120.0
" NRT 327.0ms(warm-up) 892.5KB/s
"162.159.36.0
" TPE 175.0ms(warm-up) 679.3KB/s
"162.159.46.0
" TPE 291.0ms(warm-up) 708.1KB/s
"162.159.128.0
" TPE 143.0ms(warm-up) 672.3KB/s
"162.159.152.0
" TPE 195.0ms(warm-up) 641.5KB/s
"162.159.160.0
" LHR 880.0ms(warm-up) 365.0KB/s
"162.159.200.0
" TPE 181.0ms(warm-up) 593.4KB/s
"162.159.224.0
" NRT 364.0ms(warm-up) 810.4KB/s
"172.64.36.0
" TPE 288.0ms(warm-up) 626.9KB/s
"173.245.49.0
" Timeout Error
"190.93.244.0
" TPE 251.0ms(warm-up) 630.1KB/s
"198.41.208.0
" TPE 226.0ms(warm-up) 676.7KB/s
"198.41.211.0
" TPE 1083.0ms(warm-up) 636.6KB/s
198.41.220.0 TPE 953.0ms(warm-up) 634.9KB/s
网友回复:
好用收藏了!楼主有没有筛选工能，自定义筛选列出数量测试后自动把响应、下载速度比其他快的列出来,没的话那只好一个个找了