140.172.184.1 — Boulder, Colorado, 🇺🇸 USA · AS3477 Roadrunner

PTR

web01-prod.ngdc.noaa.gov

A record for

`ionosonde.org`
	A	140.172.184.1
`web01-prod.ngdc.noaa.gov`
	A	2610:20:8800:3c06::1
	A	140.172.184.1

Previously A record for

www.ngdc.noaa.gov

ngdc.noaa.gov

IP numbers used in conjunction

50%	2610:20:8800:3c06::1

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Boulder, Colorado, 🇺🇸 USA

^{🇺🇸 Roadrunner140.172.0.0/16 NOAA Boulder}

140.172.184.1 Boulder, Colorado, 🇺🇸 USA Courtesy of