52.4.193.151 — Ashburn, Virginia, 🇺🇸 USA · AS14618 Amazon

Ashburn, Virginia, 🇺🇸 USA · AS14618 Amazon

PTR

ec2-52-4-193-151.compute-1.amazonaws.com

A record for

`duolingo-achievements-prod.duolingo.com`
	A	3.217.2.226
	A	18.213.108.238
	A	44.197.92.32
	A	52.203.97.205
	A	54.88.18.109
	A	54.160.13.237
	A	54.174.245.139
	A	100.48.162.13

Previously A record for

websocket.checkedup.com

IP numbers used in conjunction

100%	3.217.2.226
100%	18.213.108.238
100%	44.197.92.32
100%	52.203.97.205
100%	54.88.18.109
100%	54.160.13.237
100%	54.174.245.139
100%	100.48.162.13

🛡️Is this IP blacklisted?Check against 50+ spam databases→🌐52.4.0.0/14262K IPs · AS14618 Amazon→🔧AS14618Amazon autonomous system→

Ashburn, Virginia, 🇺🇸 USA

^{🇺🇸 Amazon52.4.0.0/14 EC2 IAD prefix}

52.4.193.151 Ashburn, Virginia, 🇺🇸 USA Courtesy of