The names of all the IP addresses in 4.0.0.0/24
4.0.0.2	computer-ca.edge1.houston1.level3.net.
4.0.0.3	l0.washdc3-cmb1.bbnplanet.net.
4.0.0.4	l0.cambridge1-sr3.bbnplanet.net.
4.0.0.5	lag-30-278-99.bear2.pittsburgh3.level3.net.
4.0.0.6	l0.cambridge1-nbr1.bbnplanet.net.
4.0.0.11	l99.washdc3-cmb1.bbnplanet.net.
4.0.0.34	l4.crtntx1-cmb1.bbnplanet.net.
4.0.0.40	l0.miasfl1-cr5.bbnplanet.net.
4.0.0.41	l0.burlma2-cr1.bbnplanet.net.
4.0.0.47	l0.nchicago2-cr1.bbnplanet.net.
4.0.0.48	l0.nchicago2-cr2.bbnplanet.net.
4.0.0.49	l0.nchicago2-ts2.bbnplanet.net.
4.0.0.50	l0.nchicago2-ts3.bbnplanet.net.
4.0.0.60	lo0.iplvin1-hcr5.bbnplanet.net.
4.0.0.169	ae2-1212.bar1.philadelphia1.level3.net.
4.0.0.170	verizon-com.bar1.philadelphia1.level3.net.
4.0.0.186	l1.washdc3-cmb1.bbnplanet.net.
4.0.0.194	l0.jackson-cr1.bbnplanet.net.
4.0.0.199	l0.baltimore1-ts1.bbnplanet.net.
4.0.0.223	l0.vienna1-ts1.bbnplanet.net.
4.0.0.225	l0.vienna1-ts3.bbnplanet.net.
4.0.0.226	l0.vienna1-ts4.bbnplanet.net.
4.0.0.228	l0.vienna1-br2.bbnplanet.net.
4.0.0.229	l0.vienna1-cr1.bbnplanet.net.
4.0.0.230	l0.vienna1-cr2.bbnplanet.net.
4.0.0.231	l0.vienna1-cr3.bbnplanet.net.
4.0.0.233	l0.vienna1-cr5.bbnplanet.net.
4.0.0.242	l0.columbia1-sr1.bbnplanet.net.
4.0.0.245	l0.columbia1-ts1.bbnplanet.net.
4.0.0.249	l99.cambridge1-mbone3.bbnplanet.net.
30 IP addresses in 4.0.0.0/24 appear to have a name (Pointer Record).
4.0.0.2   !ip !rdap !whois !bl !scan !tr !dnstr !g !gsec

  
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