Networks, measured

25 carrier and ISP networks. None of them publishes a status endpoint, so none of this is their word — it is what BGP routing, active ping and a network telescope observe about reachability to each network, via IODA at Georgia Tech.

1. US mobile networks 4

2. AT&T●operationalAS7018measured
3. T-Mobile US●operationalAS21928measured
4. US Cellular●operationalAS6300measured
5. Verizon●operationalAS701measured

6. US broadband 6

7. Charter Spectrum●operationalAS20115measured
8. Comcast Xfinity●operationalAS7922measured
9. Cox●operationalAS22773measured
10. Frontier●operationalAS5650measured
11. Google Fiber●operationalAS16591measured
12. Lumen CenturyLink●operationalAS209measured

13. Satellite 1

14. Starlink●operationalAS14593measured

15. Mobile, elsewhere 5

16. Airtel●operationalAS9498measured
17. EE●operationalAS12576measured
18. Jio●operationalAS55836measured
19. NTT Docomo●operationalAS9605measured
20. Vodafone UK●operationalAS25135measured

21. Broadband, elsewhere 9

22. BT●operationalAS2856measured
23. Bell Canada●operationalAS577measured
24. Deutsche Telekom●operationalAS3320measured
25. Orange France●operationalAS3215measured
26. Rogers●operationalAS812measured
27. Telefonica ES●operationalAS3352measured
28. Telstra●operationalAS1221measured
29. Telus●operationalAS852measured
30. Virgin Media●operationalAS5089measured