Robtex

Up: 217.14.138.0/23
Can't show all results, try to descend to a more specific CIDR
Down left: 217.14.138.0/25
Down right: 217.14.138.128/25
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
217.14.138.4	A	provision.voiptalk.org
217.14.138.10	PTR	www.voiptalk.org
217.14.138.10	A	telth17.voiptalk.org
217.14.138.13	A+PTR	callshop.voiptalk.org
217.14.138.13	A	on-line-billing.com
217.14.138.30	A+PTR	telth7.voiptalk.org
217.14.138.31	A+PTR	dns1.voiptalk.org
217.14.138.31	A	dns1.telappliant.com
217.14.138.31	A	dns1.sipworld.org
217.14.138.32	A+PTR	dns2.voiptalk.org
217.14.138.32	A	dns2.telappliant.com
217.14.138.32	A	dns2.draytelbusiness.com
217.14.138.49	PTR	iax.voiptalk.org
217.14.138.53	A+PTR	telth37.voiptalk.org
217.14.138.53	A	www.draytel.org
217.14.138.60	A	bluetalk.org
217.14.138.126	A+PTR	telth23b.voiptalk.org
217.14.138.127	A+PTR	telth19b.voiptalk.org
217.14.138.127	A+PTR	sip.3cx.voipworld.org
217.14.138.127	A	draytel.org
217.14.138.154	A	nat.draytel.org
217.14.138.154	A	nat.ineedbroadband.co.uk
217.14.138.238	A+PTR	telvoipgw.voipworld.org
217.14.138.238	A	telappliant.co.uk