Robtex

Up: 140.82.96.0/19
Can't show all results, try to descend to a more specific CIDR
Down left: 140.82.112.0/21
Down right: 140.82.120.0/21
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
140.82.112.3	A+PTR	lb-140-82-112-3-iad.github.com
140.82.112.4	A+PTR	lb-140-82-112-4-iad.github.com
140.82.112.5	A	lb-140-82-112-5-iad.github.com
140.82.112.6	A	lb-140-82-112-6-iad.github.com
140.82.112.17	A	github.biz
140.82.112.22	A	glb-db52c2cf8be544.github.com
140.82.112.25	A+PTR	lb-140-82-112-25-iad.github.com
140.82.112.26	A	live.github.com
140.82.113.3	A+PTR	lb-140-82-113-3-iad.github.com
140.82.113.3	A	iad-region.github.com
140.82.113.4	A+PTR	lb-140-82-113-4-iad.github.com
140.82.113.4	A	iad-region.github.com
140.82.113.4	A	btceosxin.com
140.82.113.6	PTR	lb-140-82-113-6-iad.github.com
140.82.113.9	PTR	lb-140-82-113-9-iad.github.com
140.82.113.17	A	redirect.github.com
140.82.113.18	A	github.cc
140.82.113.22	A+PTR	lb-140-82-113-22-iad.github.com
140.82.113.22	A	support.github.com
140.82.113.35	PTR	lb-140-82-113-35-iad.github.com
140.82.114.2	A+PTR	lb-140-82-114-2-iad.github.com
140.82.114.3	A+PTR	lb-140-82-114-3-iad.github.com
140.82.114.3	A	iad-region.github.com
140.82.114.4	PTR	lb-140-82-114-4-iad.github.com
140.82.114.4	A	iad-region.github.com
140.82.114.4	A	github.com
140.82.114.17	A+PTR	lb-140-82-114-17-iad.github.com
140.82.114.17	A	githubazure.com
140.82.114.17	A	githubazuretesting.com
140.82.114.26	PTR	lb-140-82-114-26-iad.github.com
140.82.114.35	PTR	lb-140-82-114-35-iad.github.com
140.82.118.2	A	lb-140-82-118-2-ams.github.com
140.82.118.3	A	lb-140-82-118-3-ams.github.com
140.82.118.3	A	ineedacve.org
140.82.118.4	A	zenpochta.com
140.82.118.5	PTR	lb-140-82-118-5-ams.github.com
140.82.121.2	A	github-debug.com
140.82.121.3	PTR	lb-140-82-121-3-fra.github.com
140.82.121.4	PTR	lb-140-82-121-4-fra.github.com
140.82.121.5	PTR	lb-140-82-121-5-fra.github.com
140.82.121.6	A	lb-140-82-121-6-fra.github.com
140.82.121.14	A	alambic-origin.githubusercontent.com
140.82.121.36	A	ssh.github.com