IP List distribution Schutz B. A First Course in General Relativity 3ed 2022, total 4
| IP | Country | City | ISP |
|---|---|---|---|
| 117.140.248.102 | China | Qinzhou | China Mobile Guangdong |
| 169.213.165.159 | Republic of Korea | Korea Telecom | |
| 184.75.221.211 | Canada | Toronto | Amanah Tech |
| 81.249.217.10 | France | Les Pavillons-sous-Bois | Orange |