Robtex

Up: 64.4.250.0/23
Can't show all results, try to descend to a more specific CIDR
Down left: 64.4.250.0/25
Down right: 64.4.250.128/25
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
64.4.250.11	PTR	paypal.com
64.4.250.12	PTR	paypal.com
64.4.250.13	PTR	paypal.se
64.4.250.13	PTR	paypal.com.sa
64.4.250.13	PTR	paypal.ph
64.4.250.14	PTR	paypal.com.br
64.4.250.14	PTR	paypal.com.mx
64.4.250.14	PTR	paypal.cl
64.4.250.15	A+PTR	paypal.me
64.4.250.16	A+PTR	paypal.me
64.4.250.17	PTR	paypal.com
64.4.250.18	PTR	paypal.com
64.4.250.19	PTR	paypal.com.sa
64.4.250.19	PTR	paypal.ie
64.4.250.19	A+PTR	paypal.com.sg
64.4.250.20	PTR	paypal.co.in
64.4.250.20	PTR	paypal.se
64.4.250.20	PTR	paypal.com.ve
64.4.250.21	A+PTR	paypal.me
64.4.250.22	A+PTR	paypal.me
64.4.250.23	PTR	paypal.com
64.4.250.24	PTR	paypal.com
64.4.250.29	A	ppme.glb.paypal.com
64.4.250.30	A	ppme.glb.paypal.com
64.4.250.31	A	ppme.glb.paypal.com
64.4.250.36	A+PTR	paypal.com
64.4.250.36	A	paypal.me
64.4.250.37	A+PTR	paypal.com
64.4.250.37	A	paypal.me
64.4.250.38	PTR	paypal-deutschland.de
64.4.250.38	PTR	paypal.nl
64.4.250.38	A+PTR	paypal-information.com
64.4.250.39	PTR	paypal.ie
64.4.250.39	PTR	paypal.com.sa
64.4.250.39	PTR	paypal.co.id
64.4.250.40	PTR	paypal.me