AS31

Summary

Country	United States
Organization	California Institute of Technology
Domain	caltech.edu
Number of IPv4	134,152
Number of IPv6	7.9228× 1028
AS Type	Education
Registry	ARIN
Allocated	September 21, 1984 (about 40 years ago)
Updated	August 29, 2023 (about 1 year ago)

IP Ranges

AS31 announces 13 IPv4 ranges and 1 IPv6 range.

That's a total of 134,152 IPv4 addresses and 7.9228× 10²⁸ IPv6 addresses.

Prefix	Organization	Size	Registry	Status
131.215.0.0/16	California Institute of Technology	65,536	ARIN	ALLOCATION
131.215.229.0/24	California Institute of Technology	256	ARIN	ALLOCATION
131.215.230.0/24	California Institute of Technology	256	ARIN	ALLOCATION
131.215.234.0/24	California Institute of Technology	256	ARIN	ALLOCATION
131.215.239.0/24	California Institute of Technology	256	ARIN	ALLOCATION
131.215.240.0/24	California Institute of Technology	256	ARIN	ALLOCATION
131.215.242.0/23	California Institute of Technology	512	ARIN	ALLOCATION
131.215.244.0/23	California Institute of Technology	512	ARIN	ALLOCATION
134.4.0.0/16	California Institute of Technology	65,536	ARIN	ALLOCATION
137.164.24.72/29	CENIC	8	ARIN	ALLOCATION
192.12.19.0/24	California Institute of Technology	256	ARIN	ALLOCATION
192.31.43.0/24	California Institute of Technology	256	ARIN	ALLOCATION
192.41.208.0/24	California Institute of Technology	256	ARIN	ALLOCATION

Prefix	Organization	Size	Registry	Status
2607:f520::/32	California Institute of Technology	7.9228× 1028	ARIN	ALLOCATION

Peers

There is no peer for AS31.

Upstreams

There are 4 upstreams for AS31:

Downstreams

There is no downstream for AS31.