Data as of Nov 3, 2026

166.78.192.0/18

No anonymizer space · no proxy exits in 30 days

Rackspace Hosting

Announcement

this exact prefix

No RPKI

Announced by

AS19994

Type

Hosting

Risk

50 / 100 · Medium

Registrations in this block

The registry's network records over the announcement: those covering it, widest first, then every record inside it, under its parent.

Range	Addresses	Netname	Holder	Type	Created	Abuse contact
166.78.0.0/16	65,536	RACKS-8-NET-11	Rackspace Hosting (RACKS-8) · US	Direct Allocation	Oct 17, 2012	[email protected]
└ 166.78.192.0/27	32	RACKS-8-1357779854651718	unknown	—	—	—
└ 166.78.192.32/29	8	RACKS-8-1357815854570762	unknown	—	—	—
└ 166.78.192.40/29	8	RACKS-8-1435771699586520	unknown	—	—	—
└ 166.78.192.184/30	4	RACKS-8-1383182535504330	unknown	—	—	—
└ 166.78.192.188/30	4	RACKS-8-1383183026592297	unknown	—	—	—
└ 166.78.192.192/29	8	RACKS-8-1433802739997047	unknown	—	—	—
└ 166.78.192.200/29	8	RACKS-8-1358358374266758	unknown	—	—	—
└ 166.78.192.240/29	8	RSPC-F02E130B-B3B4-4731-840A-AA110EF41CBA	unknown	—	—	—
└ 166.78.192.248/30	4	RACKS-8-1419450377497060	unknown	—	—	—
└ 166.78.192.252/30	4	RACKS-8-1419896056556169	unknown	—	—	—
└ 166.78.193.0/30	4	RACKS-8-1419869535286942	unknown	—	—	—
└ 166.78.193.8/30	4	RACKS-8-1419931097820551	unknown	—	—	—
└ 166.78.193.16/29	8	RACKS-8-0000000000000000	unknown	—	—	—
└ 166.78.193.52/30	4	RSPC-3CE9AFE5-731F-4F4F-8D04-CB07E97ED07F	unknown	—	—	—
└ 166.78.193.56/29	8	RACKS-8-1358467094481772	unknown	—	—	—
└ 166.78.193.68/30	4	RACKS-8-1420045232622050	unknown	—	—	—
└ 166.78.193.72/30	4	RACKS-8-1420057935615388	unknown	—	—	—
└ 166.78.193.76/30	4	RACKS-8-1420064536466796	unknown	—	—	—
└ 166.78.193.80/29	8	RACKS-8-1358471424065034	unknown	—	—	—
└ 166.78.193.88/30	4	RACKS-8-1446237979452502	unknown	—	—	—
└ 166.78.193.108/30	4	RACKS-8-1358513424290267	unknown	—	—	—
└ 166.78.193.112/30	4	RACKS-8-1358513654686840	unknown	—	—	—
└ 166.78.193.120/30	4	RACKS-8-1405766536843575	unknown	—	—	—
└ 166.78.193.124/30	4	RACKS-8-1405766428471351	unknown	—	—	—
└ 166.78.193.136/30	4	RACKS-8-1420101257030031	unknown	—	—	—
└ 166.78.193.140/30	4	INTERNAL-CUSTOMER-01	unknown	—	—	—
└ 166.78.193.148/30	4	RSPC-81BD494C-C415-4451-9AB1-393C07D53380	unknown	—	—	—
└ 166.78.193.152/30	4	RACKS-8-1358527694430170	unknown	—	—	—
└ 166.78.193.156/30	4	RACKS-8-1358527934296976	unknown	—	—	—
└ 166.78.193.160/30	4	RACKS-8-1358527934902978	unknown	—	—	—
└ 166.78.193.164/30	4	RACKS-8-1358528054076811	unknown	—	—	—
└ 166.78.193.168/30	4	RACKS-8-1358528652031656	unknown	—	—	—
└ 166.78.193.172/30	4	RACKS-8-1358528653045307	unknown	—	—	—
└ 166.78.193.180/30	4	RACKS-8-1420438833348936	unknown	—	—	—
└ 166.78.193.192/26	64	RACKS-8-1358526853238811	unknown	—	—	—
└ 166.78.194.44/30	4	RACKS-8-1420497857575893	unknown	—	—	—
└ 166.78.194.60/30	4	RSPC-AA64584F-5742-42A5-97D3-DBD38BDCF5E5	unknown	—	—	—
└ 166.78.194.68/30	4	RSPC-38CC69FE-CEF5-47E7-963C-01D3616655FE	unknown	—	—	—
└ 166.78.194.200/29	8	RACKS-8-1358800094527582	unknown	—	—	—
└ 166.78.194.224/31	2	RSPC-B81E68A5-D8FB-471E-B871-F971411A1F41	unknown	—	—	—
└ 166.78.194.226/31	2	RSPC-E492CC1C-7915-4174-8412-EC6A59A9746D	unknown	—	—	—
└ 166.78.194.228/30	4	RSPC-4853DBD8-D312-4FDF-A384-AD5FB02B8C46	unknown	—	—	—
└ 166.78.194.240/29	8	RACKS-8-1358868254239791	unknown	—	—	—
└ 166.78.195.0/30	4	RSPC-56B22759-3283-48BB-9146-CF587876A5F4	unknown	—	—	—
└ 166.78.195.8/30	4	RSPC-DFE5A409-565B-4911-B51E-0CDB98D174BA	unknown	—	—	—
└ 166.78.195.16/30	4	RACKS-8-1358889854707100	unknown	—	—	—
└ 166.78.195.20/30	4	RACKS-8-1420611037975615	unknown	—	—	—
└ 166.78.195.24/30	4	RSPC-6438B6EF-F7F3-456B-A6A2-1ADE3A768B94	unknown	—	—	—
└ 166.78.195.32/28	16	RACKS-8-1358891775478062	unknown	—	—	—
└ 166.78.195.48/28	16	RACKS-8-1358892374641123	unknown	—	—	—
└ 166.78.195.64/30	4	RSPC-BE373F54-8F98-4EB5-B0B6-579A41F5BBCA	unknown	—	—	—
└ 166.78.195.68/30	4	RSPC-E8856DE8-05C5-4B6F-959E-29B24F63169C	unknown	—	—	—
└ 166.78.195.72/30	4	RACKS-8-1456949419324659	unknown	—	—	—
└ 166.78.195.76/30	4	RACKS-8-1427292036302732	unknown	—	—	—
└ 166.78.195.88/29	8	RACKS-8-1358970854228270	unknown	—	—	—
└ 166.78.195.96/28	16	RACKS-8-1388068095470892	unknown	—	—	—
└ 166.78.195.112/30	4	RSPC-B6EF7940-EEE4-424E-85A8-8E0A3FD527A4	unknown	—	—	—
└ 166.78.195.128/28	16	RACKS-8-1388067975127643	unknown	—	—	—
└ 166.78.195.144/30	4	RACKS-8-1358973734303694	unknown	—	—	—
└ 166.78.195.152/29	8	RACKS-8-1363878735952588	unknown	—	—	—
└ 166.78.195.192/30	4	RACKS-8-1420666097761141	unknown	—	—	—
└ 166.78.195.196/30	4	RACKS-8-1359006374264128	unknown	—	—	—
└ 166.78.195.208/29	8	RACKS-8-1359014175845308	unknown	—	—	—
└ 166.78.195.240/29	8	RACKS-8-1359030026114443	unknown	—	—	—
└ 166.78.195.252/30	4	RACKS-8-1396546227208963	unknown	—	—	—
└ 166.78.196.48/28	16	RACKS-8-1357917255501046	unknown	—	—	—
└ 166.78.196.80/28	16	RACKS-8-1430794457279791	unknown	—	—	—
└ 166.78.196.128/28	16	OPEN-XCHANGE-NET	unknown	—	—	—
└ 166.78.196.144/28	16	RACKS-8-1358190854438703	unknown	—	—	—
└ 166.78.196.160/28	16	RACKS-8-1358350223699050	unknown	—	—	—
└ 166.78.196.184/29	8	RACKS-8-0000000000000000	unknown	—	—	—
└ 166.78.197.32/29	8	RACKS-8-1357845854954892	unknown	—	—	—
└ 166.78.197.56/29	8	RACKS-8-1450903458431214	unknown	—	—	—
└ 166.78.197.104/29	8	RACKS-8-1357917255025257	unknown	—	—	—
└ 166.78.197.112/29	8	RACKS-8-1357919423572369	unknown	—	—	—
└ 166.78.197.120/29	8	RACKS-8-1357919424251283	unknown	—	—	—
└ 166.78.197.128/29	8	RACKS-8-1357922655008391	unknown	—	—	—
└ 166.78.197.136/29	8	RACKS-8-1397507535321276	unknown	—	—	—
└ 166.78.197.152/29	8	RACKS-8-1357950854049775	unknown	—	—	—
└ 166.78.197.176/29	8	RACKS-8-1389208095613643	unknown	—	—	—
└ 166.78.197.192/29	8	RACKS-8-1358180894256818	unknown	—	—	—
└ 166.78.197.200/29	8	RACKS-8-1358185454828686	unknown	—	—	—
└ 166.78.197.208/29	8	RACKS-8-1384461734735396	unknown	—	—	—
└ 166.78.197.216/29	8	RACKS-8-1358197574840491	unknown	—	—	—
└ 166.78.197.224/29	8	RACKS-8-1358262134507545	unknown	—	—	—
└ 166.78.197.232/29	8	RACKS-8-1463605578392705	unknown	—	—	—
└ 166.78.198.4/30	4	RACKS-8-1357845974292116	unknown	—	—	—
└ 166.78.198.8/30	4	RACKS-8-1462461492428591	unknown	—	—	—
└ 166.78.198.12/30	4	RACKS-8-1357846574715381	unknown	—	—	—
└ 166.78.198.16/30	4	RACKS-8-1357846574788760	unknown	—	—	—
└ 166.78.198.24/30	4	RACKS-8-1419353177116953	unknown	—	—	—
└ 166.78.198.44/30	4	INTERNAL-CUSTOMER-01	unknown	—	—	—
└ 166.78.198.48/30	4	RACKS-8-1357878022951300	unknown	—	—	—
└ 166.78.198.52/30	4	RACKS-8-1357888223507445	unknown	—	—	—
└ 166.78.198.64/30	4	RACKS-8-1358044573044326	unknown	—	—	—
└ 166.78.198.92/30	4	RACKS-8-1358195426413362	unknown	—	—	—
└ 166.78.198.96/30	4	RACKS-8-1358195426159697	unknown	—	—	—
└ 166.78.198.100/30	4	RACKS-8-1358197574654036	unknown	—	—	—
└ 166.78.198.108/30	4	RACKS-8-1453408577864614	unknown	—	—	—
└ 166.78.198.120/30	4	RACKS-8-1358267424689513	unknown	—	—	—
└ 166.78.198.136/30	4	RACKS-8-1402495935650386	unknown	—	—	—
└ 166.78.198.140/30	4	RACKS-8-1435858852926353	unknown	—	—	—
└ 166.78.198.148/30	4	RACKS-8-1435858938402513	unknown	—	—	—
└ 166.78.198.160/30	4	INTERNAL-CUSTOMER-01	unknown	—	—	—
└ 166.78.198.184/30	4	RACKS-8-1358346975064326	unknown	—	—	—
└ 166.78.198.188/30	4	RACKS-8-1358352024482688	unknown	—	—	—
└ 166.78.198.200/30	4	RACKS-8-1358360654973522	unknown	—	—	—
└ 166.78.198.208/30	4	RACKS-8-1358361023214590	unknown	—	—	—
└ 166.78.198.224/30	4	RSPC-7985AFAA-BE9F-4E42-9865-F273DDAC64AE	unknown	—	—	—
└ 166.78.198.228/30	4	RACKS-8-1358388854078958	unknown	—	—	—
└ 166.78.198.244/30	4	RACKS-8-1435863052476743	unknown	—	—	—
└ 166.78.198.248/30	4	RACKS-8-1435864702309817	unknown	—	—	—
└ 166.78.199.10/31	2	RACKS-8-1357856655240239	unknown	—	—	—
└ 166.78.199.12/31	2	RSPC-1970E98D-9266-4CCA-8F84-25D7E5FDB32E	unknown	—	—	—
└ 166.78.199.18/31	2	RACKS-8-1358178973405690	unknown	—	—	—
└ 166.78.199.22/31	2	RACKS-8-1455921644036642	unknown	—	—	—
└ 166.78.199.26/31	2	RACKS-8-1358303534344172	unknown	—	—	—
└ 166.78.199.28/31	2	RACKS-8-1358371333556296	unknown	—	—	—
└ 166.78.199.34/31	2	RACKS-8-1423501696576838	unknown	—	—	—
└ 166.78.199.38/31	2	RACKS-8-1358740574946795	unknown	—	—	—
└ 166.78.199.44/31	2	RSPC-D3E18C9C-2C17-4A55-9EE4-4BB201B851B1	unknown	—	—	—
└ 166.78.199.48/31	2	RACKS-8-1396917134526123	unknown	—	—	—
└ 166.78.199.50/31	2	RACKS-8-1388091734967127	unknown	—	—	—
└ 166.78.199.60/31	2	RACKS-8-1440445258584162	unknown	—	—	—
└ 166.78.199.62/31	2	RACKS-8-1359041773485841	unknown	—	—	—
└ 166.78.199.64/31	2	RACKS-8-1359043455421126	unknown	—	—	—
└ 166.78.199.70/31	2	RACKS-8-1359047894912271	unknown	—	—	—
└ 166.78.199.78/31	2	RACKS-8-1359058093369748	unknown	—	—	—
└ 166.78.199.80/31	2	RACKS-8-1359060625676200	unknown	—	—	—
└ 166.78.199.82/31	2	RACKS-8-1359060974900198	unknown	—	—	—
└ 166.78.199.86/31	2	RACKS-8-1377484823854509	unknown	—	—	—
└ 166.78.199.90/31	2	RACKS-8-1359124824087508	unknown	—	—	—
└ 166.78.199.94/31	2	RACKS-8-1359133334593210	unknown	—	—	—
└ 166.78.199.102/31	2	RACKS-8-1441155056067542	unknown	—	—	—
└ 166.78.199.106/31	2	RACKS-8-1397496628051999	unknown	—	—	—
└ 166.78.199.118/31	2	RACKS-8-1397570656033411	unknown	—	—	—
└ 166.78.199.126/31	2	RACKS-8-1359666624346767	unknown	—	—	—
└ 166.78.200.0/29	8	RACKS-8-1409682267237019	unknown	—	—	—
└ 166.78.200.16/29	8	RACKS-8-1359054735640940	unknown	—	—	—
└ 166.78.200.24/29	8	RACKS-8-1359054974206457	unknown	—	—	—
└ 166.78.200.32/29	8	RACKS-8-1382533226151629	unknown	—	—	—
└ 166.78.200.112/28	16	RACKS-8-1359748824041473	unknown	—	—	—
└ 166.78.200.128/28	16	RACKS-8-1359748824078768	unknown	—	—	—
└ 166.78.200.160/28	16	RACKS-8-1360070660747945	unknown	—	—	—
└ 166.78.200.176/28	16	RACKS-8-1360070661670214	unknown	—	—	—
└ 166.78.200.192/28	16	RACKS-8-1360070661346648	unknown	—	—	—
└ 166.78.200.224/28	16	RACKS-8-1367770935048844	unknown	—	—	—
└ 166.78.201.32/28	16	RACKS-8-1432324336698813	unknown	—	—	—
└ 166.78.201.64/28	16	RACKS-8-1360613533793216	unknown	—	—	—
└ 166.78.201.96/28	16	RACKS-8-1360698023511790	unknown	—	—	—
└ 166.78.201.128/28	16	RACKS-8-1361219293516310	unknown	—	—	—
└ 166.78.201.144/28	16	RACKS-8-1361244854807888	unknown	—	—	—
└ 166.78.201.176/28	16	RACKS-8-1361242093163915	unknown	—	—	—
└ 166.78.201.192/28	16	RACKS-8-1361242093067233	unknown	—	—	—
└ 166.78.202.16/29	8	RACKS-8-1455551780391124	unknown	—	—	—
└ 166.78.202.24/29	8	RACKS-8-1421437233650355	unknown	—	—	—
└ 166.78.202.32/29	8	RACKS-8-1359130454176984	unknown	—	—	—
└ 166.78.202.40/29	8	RACKS-8-1359130575672460	unknown	—	—	—
└ 166.78.202.56/29	8	RACKS-8-1359156734142535	unknown	—	—	—
└ 166.78.202.64/29	8	RACKS-8-1437839779836448	unknown	—	—	—
└ 166.78.202.88/29	8	RACKS-8-1359400575685003	unknown	—	—	—
└ 166.78.202.96/29	8	RACKS-8-1455574242013841	unknown	—	—	—
└ 166.78.202.104/29	8	RACKS-8-1421769736538278	unknown	—	—	—
└ 166.78.202.112/29	8	RACKS-8-1375721773539443	unknown	—	—	—
└ 166.78.202.120/29	8	RSPC-8015109A-DF93-4EAE-B6C1-32283C42AB6E	unknown	—	—	—
└ 166.78.202.152/29	8	RACKS-8-1359465134531673	unknown	—	—	—
└ 166.78.202.168/29	8	RACKS-8-1359474373430012	unknown	—	—	—
└ 166.78.202.184/29	8	RACKS-8-1359489854466107	unknown	—	—	—
└ 166.78.202.192/29	8	RACKS-8-1359494774375001	unknown	—	—	—
└ 166.78.202.200/29	8	RACKS-8-1359500534135744	unknown	—	—	—
└ 166.78.202.224/29	8	RSPC-BC565C41-1965-47BB-B5CE-FA851462C205	unknown	—	—	—
└ 166.78.203.16/29	8	RACKS-8-1359586573794620	unknown	—	—	—
└ 166.78.203.24/29	8	RACKS-8-1359601824507443	unknown	—	—	—
└ 166.78.203.32/29	8	RACKS-8-1359613693763786	unknown	—	—	—
└ 166.78.203.56/29	8	RACKS-8-1359656293581106	unknown	—	—	—
└ 166.78.203.128/29	8	RACKS-8-1359683654169953	unknown	—	—	—
└ 166.78.203.152/29	8	RACKS-8-1359689774020108	unknown	—	—	—
└ 166.78.203.160/29	8	RACKS-8-1359690373756957	unknown	—	—	—
└ 166.78.203.176/29	8	RACKS-8-1359735624676643	unknown	—	—	—
└ 166.78.203.192/29	8	RACKS-8-1359755054684369	unknown	—	—	—
└ 166.78.203.216/29	8	RSPC-8E8186C3-B6B8-4A16-A9C7-8095D1546753	unknown	—	—	—
└ 166.78.204.0/28	16	RACKS-8-1361463253914600	unknown	—	—	—
└ 166.78.204.16/28	16	RACKS-8-1361463374916228	unknown	—	—	—
└ 166.78.204.48/28	16	RACKS-8-1462461302512783	unknown	—	—	—
└ 166.78.204.64/28	16	RACKS-8-1361823021504156	unknown	—	—	—
└ 166.78.204.96/28	16	RACKS-8-1361971695313675	unknown	—	—	—
└ 166.78.204.144/28	16	RACKS-8-1389793455307794	unknown	—	—	—
└ 166.78.204.176/28	16	RACKS-8-1446590057418227	unknown	—	—	—
└ 166.78.204.192/28	16	RACKS-8-1382626455610148	unknown	—	—	—
└ 166.78.204.240/28	16	RACKS-8-1362432033241237	unknown	—	—	—
└ 166.78.205.8/29	8	RACKS-8-1397077335405401	unknown	—	—	—
└ 166.78.205.24/29	8	RACKS-8-1455629777461807	unknown	—	—	—
└ 166.78.205.32/29	8	RACKS-8-1389256575014631	unknown	—	—	—
└ 166.78.205.40/29	8	RACKS-8-1360017135431020	unknown	—	—	—
└ 166.78.205.48/29	8	RACKS-8-1360017625941775	unknown	—	—	—
└ 166.78.205.56/29	8	RACKS-8-1360017625097534	unknown	—	—	—
└ 166.78.205.64/29	8	RACKS-8-1360018224835183	unknown	—	—	—
└ 166.78.205.88/29	8	RACKS-8-1421779233201583	unknown	—	—	—
└ 166.78.205.96/29	8	RACKS-8-1360020626896550	unknown	—	—	—
└ 166.78.205.104/29	8	RACKS-8-1360022427796827	unknown	—	—	—

← Previous1–200 of 667 · page 1 of 4Next →

Network & registry

Announcement Routing history RPKI & IRR Whois & abuse

Origin network

AS19994

Name: Rackspace Hosting
Type: Hosting
Registered: Jan 15, 2010
Domain: rackspace.com
Industry: Hosting and Cloud Provider
Spamhaus ASN-DROP: not listed

166.78.192.0/18

Registrations in this block

Network & registry

AS19994

Who has announced this prefix

Routing history

Route objects on the exact prefix

Registration for this announcement

Abuse contact