Robtex

Up: 2.21.240.0/20
Can't show all results, try to descend to a more specific CIDR
Down left: 2.21.248.0/22
Down right: 2.21.252.0/22

IP	Type	Hostname
2.21.248.153	A+PTR	a2-21-248-153.deploy.static.akamaitechnologies.com
2.21.249.49	A+PTR	a2-21-249-49.deploy.static.akamaitechnologies.com
2.21.249.49	A	e7506.f.akamaiedge.net
2.21.249.87	PTR	a2-21-249-87.deploy.static.akamaitechnologies.com
2.21.251.67	A+PTR	a2-21-251-67.deploy.static.akamaitechnologies.com
2.21.251.203	A+PTR	a2-21-251-203.deploy.static.akamaitechnologies.com
2.21.251.203	A	e9559.f.akamaiedge.net
2.21.254.10	A	r15374-16594.a.1.f.e.stor.lb.akamai.net
2.21.254.11	A	r15374-16594.a.1.f.e.stor.lb.akamai.net
2.21.254.16	A	r15374-16594.a.1.f.e.stor.lb.akamai.net
2.21.254.17	A	r15374-16594.a.1.f.e.stor.lb.akamai.net
2.21.254.18	A	r15374-16594.a.1.f.e.stor.lb.akamai.net
2.21.254.19	A	r15374-16594.a.1.f.e.stor.lb.akamai.net
2.21.254.24	A	r15374-16594.a.1.f.e.stor.lb.akamai.net
2.21.254.25	A	r15374-16594.a.1.f.e.stor.lb.akamai.net
2.21.254.26	A	r15374-16594.a.1.f.e.stor.lb.akamai.net
2.21.254.27	A	r15374-16594.a.1.f.e.stor.lb.akamai.net
2.21.254.32	A	r15374-16594.a.1.f.e.stor.lb.akamai.net
2.21.254.33	A	r15374-16594.a.1.f.e.stor.lb.akamai.net
2.21.254.34	A	r15374-16594.a.1.f.e.stor.lb.akamai.net
2.21.254.35	A	r15374-16594.a.1.f.e.stor.lb.akamai.net
2.21.254.40	A	r15374-16594.a.1.f.e.stor.lb.akamai.net
2.21.254.41	A	r15374-16594.a.1.f.e.stor.lb.akamai.net
2.21.254.88	A+PTR	a2-21-254-88.deploy.static.akamaitechnologies.com
2.21.254.88	A	r35984-36020.neards.1.cftp.e.stor.lb.akamai.net
2.21.254.134	A	ftvigrp.download.akamai.com
2.21.254.135	A	ftvigrp.download.akamai.com
2.21.254.140	A	ftvigrp.download.akamai.com
2.21.254.141	A	ftvigrp.download.akamai.com
2.21.254.142	A	ftvigrp.download.akamai.com
2.21.254.143	A	ftvigrp.download.akamai.com
2.21.254.148	A	ftvigrp.download.akamai.com
2.21.254.149	A	ftvigrp.download.akamai.com
2.21.254.150	A	ftvigrp.download.akamai.com
2.21.254.151	A	ftvigrp.download.akamai.com
2.21.254.156	A	ftvigrp.download.akamai.com
2.21.254.157	A	ftvigrp.download.akamai.com
2.21.254.158	A	ftvigrp.download.akamai.com
2.21.254.159	A	ftvigrp.download.akamai.com
2.21.254.164	A	ftvigrp.download.akamai.com
2.21.254.165	A	ftvigrp.download.akamai.com
2.21.255.0	PTR	a2-21-255-0.deploy.static.akamaitechnologies.com