IP List distribution Teach Yourself Electricity and Electronics, 6th Edition, total 2
| IP | Country | City | ISP |
|---|---|---|---|
| 121.35.44.230 | China | Guangzhou | China Telecom |
| 183.14.28.140 | China | Guangzhou | China Telecom |
| IP | Country | City | ISP |
|---|---|---|---|
| 121.35.44.230 | China | Guangzhou | China Telecom |
| 183.14.28.140 | China | Guangzhou | China Telecom |