Robtex

Up: 64.25.32.0/20
Can't show all results, try to descend to a more specific CIDR
Down left: 64.25.40.0/22
Down right: 64.25.44.0/22
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
64.25.40.11	PTR	64.25.40-11.ncsoft.com
64.25.40.11	A	es.guildwars.com
64.25.40.11	A	guildwars.com
64.25.40.15	PTR	64.25.40-15.ncsoft.com
64.25.40.15	A	tradingpost-live.ncplatform.net
64.25.40.16	PTR	64.25.40-16.ncsoft.com
64.25.40.16	A	support.guildwars2.com
64.25.40.16	A	wiki.guildwars.com
64.25.40.18	PTR	64.25.40-18.ncsoft.com
64.25.40.18	A	arena102.gtm.arena.net
64.25.40.50	PTR	64.25.40-50.ncsoft.com
64.25.40.50	A	cms-live.ncplatform.net
64.25.40.50	A	2gemstore-fra-live.ncplatform.net
64.25.40.51	PTR	64.25.40-51.ncsoft.com
64.25.40.51	A	wiki-de.guildwars2.com
64.25.40.51	A	wiki-fr.guildwars2.com
64.25.40.53	PTR	64.25.40-53.ncsoft.com
64.25.40.54	A	es.guildwars.com
64.25.40.54	A	guildwars.com
64.25.40.54	A	wiki.guildwars.com
64.25.40.110	PTR	64.25.40-110.ncsoft.com
64.25.40.110	A	cligate.1.ncplatform.net
64.25.40.110	A	cligate.101.ncplatform.net
64.25.40.112	PTR	64.25.40-112.ncsoft.com
64.25.40.112	A	cligate.1.ncplatform.net
64.25.40.112	A	cligate.101.ncplatform.net
64.25.40.113	PTR	64.25.40-113.ncsoft.com
64.25.40.113	A	cligate.1.ncplatform.net
64.25.40.113	A	cligate.101.ncplatform.net
64.25.40.114	PTR	64.25.40-114.ncsoft.com
64.25.40.114	A	cligate.1.ncplatform.net
64.25.40.114	A	cligate.101.ncplatform.net
64.25.40.115	PTR	64.25.40-115.ncsoft.com
64.25.40.115	A	cligate.1.ncplatform.net
64.25.40.115	A	cligate.101.ncplatform.net
64.25.40.120	PTR	64.25.40-120.ncsoft.com
64.25.40.122	PTR	64.25.40-122.ncsoft.com
64.25.40.122	A	cligate.1.ncplatform.net
64.25.40.122	A	cligate.101.ncplatform.net
64.25.40.123	PTR	64.25.40-123.ncsoft.com
64.25.40.123	A	cligate.1.ncplatform.net
64.25.40.123	A	cligate.101.ncplatform.net
64.25.42.36	A+PTR	ncwedge02.us.ncsoft.com
64.25.42.36	A	ncwedge03.eu.ncsoft.com
64.25.42.38	A+PTR	ncwedge01.us.ncsoft.com
64.25.42.40	A+PTR	ncwchat.ncsoft.com
64.25.44.11	PTR	64.25.44-11.ncsoft.com
64.25.44.110	PTR	64.25.44-110.ncsoft.com
64.25.44.110	A	apigate.ncsoft.com
64.25.46.22	PTR	64.25.46-22.ncsoft.com
64.25.46.31	PTR	64.25.46-31.ncsoft.com
64.25.46.33	PTR	64.25.46-33.ncsoft.com
64.25.46.36	PTR	64.25.46-36.ncsoft.com
64.25.46.42	PTR	64.25.46-42.ncsoft.com
64.25.47.11	A	es.guildwars.com
64.25.47.11	A	guildwars.com
64.25.47.11	A	www.guildwars.com
64.25.47.15	A	tradingpost-live.ncplatform.net
64.25.47.16	A	support.guildwars2.com
64.25.47.16	A	*.guildwars2.com
64.25.47.16	A	forum.guildwars2.com
64.25.47.17	A	arena102.gtm.arena.net
64.25.47.50	A	cms-live.ncplatform.net
64.25.47.50	A	2gemstore-fra-live.ncplatform.net
64.25.47.50	A	2gemstore-dfw-live.ncplatform.net
64.25.47.51	A	support.guildwars2.com
64.25.47.54	A	www.guildwars.com
64.25.47.54	A	fr.guildwars.com
64.25.47.63	A	chesstaro.ru
64.25.47.109	A	cligate-fra.101.ncplatform.net
64.25.47.110	A	cligate-fra.101.ncplatform.net
64.25.47.111	A	cligate-fra.101.ncplatform.net
64.25.47.112	A	cligate-fra.101.ncplatform.net
64.25.47.113	A	cligate-fra.101.ncplatform.net
64.25.47.114	A	cligate-fra.101.ncplatform.net
64.25.47.115	A	cligate-fra.101.ncplatform.net