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Data as of Nov 3, 2026

166.78.64.0/18

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.

RangeAddressesNetnameHolderTypeCreatedAbuse contact
166.78.0.0/1665,536RACKS-8-NET-11Rackspace Hosting (RACKS-8) · USDirect AllocationOct 17, 2012[email protected]
└ 166.78.64.0/298RACKS-8-1351974854090052unknown———
└ 166.78.64.16/298RACKS-8-1352100495529231unknown———
└ 166.78.64.32/298RACKS-8-1352139255343406unknown———
└ 166.78.64.48/298RACKS-8-1352153534879456unknown———
└ 166.78.64.152/298RACKS-8-1352253495175975unknown———
└ 166.78.64.200/298RACKS-8-1352329095324447unknown———
└ 166.78.64.208/298RACKS-8-1433262138605165unknown———
└ 166.78.64.216/298RACKS-8-1449789136923753unknown———
└ 166.78.64.232/298RACKS-8-1352367134508203unknown———
└ 166.78.65.0/2816RACKS-8-1352483535388734unknown———
└ 166.78.65.32/2816RACKS-8-1352521223671406unknown———
└ 166.78.65.48/2816RACKS-8-1352521223498438unknown———
└ 166.78.65.64/2816RSPC-3AB3415C-8B0A-4EE9-A578-C5E1D24048E3unknown———
└ 166.78.65.80/2816RACKS-8-1386175695994799unknown———
└ 166.78.65.144/2816RACKS-8-1353098895987708unknown———
└ 166.78.65.160/2816RACKS-8-1353419293821664unknown———
└ 166.78.65.208/2816RACKS-8-1353961934671898unknown———
└ 166.78.65.240/2816RACKS-8-1382461095452966unknown———
└ 166.78.66.0/298RACKS-8-1352824454776531unknown———
└ 166.78.66.32/298RACKS-8-1352832623730212unknown———
└ 166.78.66.40/298RACKS-8-1462461237205434unknown———
└ 166.78.66.56/298RACKS-8-1352836825326638unknown———
└ 166.78.66.64/298RSPC-89A9A304-7520-4FAD-B6E0-1DD399333F0Bunknown———
└ 166.78.66.88/298RACKS-8-1352854935846550unknown———
└ 166.78.66.96/298RACKS-8-1352860454735536unknown———
└ 166.78.66.160/298RACKS-8-1353001454354801unknown———
└ 166.78.66.216/298RSPC-065236E2-2C2A-4E89-B9AD-A57F37CB11F1unknown———
└ 166.78.66.224/298RACKS-8-1433273656810047unknown———
└ 166.78.66.232/298RACKS-8-1352915054644024unknown———
└ 166.78.67.4/304RACKS-8-1386627627337436unknown———
└ 166.78.67.8/304RACKS-8-1352755936648594unknown———
└ 166.78.67.12/304RACKS-8-1352765533007010unknown———
└ 166.78.67.20/304RSPC-EF6E01E0-D674-4B1F-90ED-470A63E2CF44unknown———
└ 166.78.67.28/304RACKS-8-1352824933716968unknown———
└ 166.78.67.32/304RACKS-8-1442433660763722unknown———
└ 166.78.67.36/304RACKS-8-1442434104571419unknown———
└ 166.78.67.40/304RACKS-8-1352834295132868unknown———
└ 166.78.67.48/304RACKS-8-1379489296493777unknown———
└ 166.78.67.72/304RACKS-8-1386607336954649unknown———
└ 166.78.67.92/304RACKS-8-1352926094338353unknown———
└ 166.78.67.104/304RACKS-8-1352997256636466unknown———
└ 166.78.67.108/304INTERNAL-CUSTOMER-01unknown———
└ 166.78.67.112/304INTERNAL-CUSTOMER-01unknown———
└ 166.78.67.116/304RACKS-8-1442435543395605unknown———
└ 166.78.67.120/304INTERNAL-CUSTOMER-01unknown———
└ 166.78.67.124/304RSPC-A93A8487-37C8-4886-AF3B-B5F1CCF2ED0Funknown———
└ 166.78.67.136/304RACKS-8-1418768777856011unknown———
└ 166.78.67.156/304RACKS-8-1418802258126222unknown———
└ 166.78.67.172/304RACKS-8-1353086533404570unknown———
└ 166.78.67.176/304RACKS-8-1436906538989137unknown———
└ 166.78.67.180/304RACKS-8-1353096734636159unknown———
└ 166.78.67.184/304RACKS-8-1353096734094894unknown———
└ 166.78.67.192/304RACKS-8-1436906778908670unknown———
└ 166.78.67.196/304RSPC-7F06413F-DF59-48FA-8523-D7A5FD02AB01unknown———
└ 166.78.67.200/304RSPC-69EE4A28-1023-469C-A044-801FCAF16207unknown———
└ 166.78.67.208/304RACKS-8-1462461298845723unknown———
└ 166.78.67.236/304RACKS-8-1455990258809870unknown———
└ 166.78.67.240/304RACKS-8-1353356421652524unknown———
└ 166.78.67.244/304RACKS-8-1353360133665554unknown———
└ 166.78.67.252/304RACKS-8-1353390494566198unknown———
└ 166.78.68.0/221,024MNO87-166-78-68-0-0Mailgun Technologies Inc (C06773628) · USReassignedOct 26, 2017[email protected]
via RACKS-8-NET-11
└ 166.78.72.0/2732RACKS-8-1352914933807003unknown———
└ 166.78.72.32/312RSPC-A492062F-8462-4321-811D-0770E40DFC27unknown———
└ 166.78.72.34/312RACKS-8-1352997256613316unknown———
└ 166.78.72.40/312RACKS-8-1353083422674922unknown———
└ 166.78.72.42/312RACKS-8-1353098294479701unknown———
└ 166.78.72.46/312RSPC-EF7FE830-9C59-42C9-AB55-5BE4C8C70D4Bunknown———
└ 166.78.72.54/312RACKS-8-1353361934750798unknown———
└ 166.78.72.56/304RACKS-8-1418886376490540unknown———
└ 166.78.72.64/2732RACKS-8-1353076933452213unknown———
└ 166.78.72.112/304RACKS-8-1353443055974391unknown———
└ 166.78.72.118/312RACKS-8-1353363974951918unknown———
└ 166.78.72.120/312RACKS-8-1440004109546001unknown———
└ 166.78.72.160/304RACKS-8-1353447853282905unknown———
└ 166.78.72.164/304RACKS-8-1353448095111593unknown———
└ 166.78.72.168/304RACKS-8-1353467425096395unknown———
└ 166.78.72.180/304RACKS-8-1353505455119215unknown———
└ 166.78.72.186/312RACKS-8-1353534373163952unknown———
└ 166.78.72.188/304RACKS-8-1353520094677109unknown———
└ 166.78.72.204/304RSPC-DAAA0341-8B34-4F9F-AD59-5CFE828B6E28unknown———
└ 166.78.72.228/304RACKS-8-1381517424091174unknown———
└ 166.78.72.232/304RACKS-8-1381519824496344unknown———
└ 166.78.72.248/304RACKS-8-1381527255255182unknown———
└ 166.78.72.252/304RACKS-8-1381532775964072unknown———
└ 166.78.73.0/312RSPC-45935575-BCBC-49ED-9FB6-4D81A5A7B110unknown———
└ 166.78.73.16/304RACKS-8-1354151293034725unknown———
└ 166.78.73.20/304RACKS-8-1354151293257319unknown———
└ 166.78.73.24/304RACKS-8-1354151534816086unknown———
└ 166.78.73.28/304RACKS-8-1354151774134472unknown———
└ 166.78.73.64/2732RACKS-8-1420725376658420unknown———
└ 166.78.74.0/304RACKS-8-1354172894375555unknown———
└ 166.78.74.16/304RSPC-54D0716A-5725-43B6-821A-E34FEC4DF8E6unknown———
└ 166.78.74.20/312RACKS-8-1354212373618558unknown———
└ 166.78.74.24/304RACKS-8-1354214054871797unknown———
└ 166.78.74.28/304RACKS-8-1354214293334157unknown———
└ 166.78.74.34/312RACKS-8-1354214894719104unknown———
└ 166.78.74.38/312RACKS-8-1458332179252175unknown———
└ 166.78.74.44/304RACKS-8-1354220655323172unknown———
└ 166.78.74.48/304RACKS-8-1451518839568140unknown———
└ 166.78.74.60/304RACKS-8-1354232174773025unknown———
└ 166.78.74.64/298RSPC-3B566057-6D8A-43E4-9D30-E9B9361799F1unknown———
└ 166.78.74.84/304RACKS-8-1446133336290928unknown———
└ 166.78.74.92/304RACKS-8-1354303694263536unknown———
└ 166.78.74.112/304RACKS-8-1430770235876507unknown———
└ 166.78.74.116/304RACKS-8-1444077043453049unknown———
└ 166.78.74.124/304RACKS-8-1418936537122892unknown———
└ 166.78.74.128/2732RACKS-8-1354313894954371unknown———
└ 166.78.74.160/312RACKS-8-1354521975260434unknown———
└ 166.78.74.166/312RACKS-8-1354636933498764unknown———
└ 166.78.74.170/312RACKS-8-1354650024397855unknown———
└ 166.78.74.176/312RACKS-8-1423059737468217unknown———
└ 166.78.74.178/312RACKS-8-1423107034756249unknown———
└ 166.78.74.184/312RACKS-8-1434588977324336unknown———
└ 166.78.74.224/298RACKS-8-1360165454775811unknown———
└ 166.78.74.240/304RSPC-31D8106F-7067-4903-9026-8F7D121AE50Cunknown———
└ 166.78.75.0/304RACKS-8-1355162053911196unknown———
└ 166.78.75.4/304RACKS-8-1355166025518335unknown———
└ 166.78.75.28/312RACKS-8-1434748457937652unknown———
└ 166.78.75.32/304RACKS-8-1355173224472538unknown———
└ 166.78.75.44/304RACKS-8-1355186894322228unknown———
└ 166.78.75.48/304RACKS-8-1355187024523435unknown———
└ 166.78.75.52/304RACKS-8-1355190023284841unknown———
└ 166.78.75.56/304RACKS-8-1355190133170157unknown———
└ 166.78.75.88/304RACKS-8-1355238624081008unknown———
└ 166.78.75.116/304RACKS-8-1355255534066861unknown———
└ 166.78.75.128/304RACKS-8-1355261775219482unknown———
└ 166.78.75.132/304RACKS-8-1355261895611381unknown———
└ 166.78.75.136/304RACKS-8-1355262024781097unknown———
└ 166.78.75.140/304RACKS-8-1355262854765081unknown———
└ 166.78.75.148/304RACKS-8-1355264534953610unknown———
└ 166.78.75.152/304RACKS-8-1379491454519172unknown———
└ 166.78.75.160/298RACKS-8-1355269694537042unknown———
└ 166.78.75.168/298RACKS-8-1355294894881662unknown———
└ 166.78.75.178/312RACKS-8-1355540173997940unknown———
└ 166.78.75.184/304RACKS-8-1355274026469846unknown———
└ 166.78.75.188/304RACKS-8-1355274026627631unknown———
└ 166.78.75.192/304RACKS-8-1355277734172255unknown———
└ 166.78.75.196/304RSPC-BAB07D85-9077-42CE-AFA4-A51E55007100unknown———
└ 166.78.75.204/304RACKS-8-1442522667881858unknown———
└ 166.78.75.210/312RSPC-E3040072-1089-4AF4-AB41-F652184A37BBunknown———
└ 166.78.75.220/312RSPC-609A8320-C7B3-4621-AE8C-4A64822965BFunknown———
└ 166.78.75.222/312RSPC-020565D6-4476-4C17-A7B3-6A0CD59AB81Cunknown———
└ 166.78.75.244/304RACKS-8-1355430255013948unknown———
└ 166.78.75.248/298RACKS-8-1355423423661505unknown———
└ 166.78.76.0/298RACKS-8-1378098254698945unknown———
└ 166.78.76.32/298RACKS-8-1396382656299787unknown———
└ 166.78.76.48/298RACKS-8-1353301574893473unknown———
└ 166.78.76.80/298RSPC-B481B091-FB8C-4572-8E23-8ED081E3E298unknown———
└ 166.78.76.88/298RACKS-8-1353363623838337unknown———
└ 166.78.76.120/298RACKS-8-1353427224121597unknown———
└ 166.78.76.152/298RACKS-8-1353488774847694unknown———
└ 166.78.76.160/298RACKS-8-1353517575209149unknown———
└ 166.78.76.176/298RSPC-CF495F92-A96E-4585-B881-EBDE4A5C99E2unknown———
└ 166.78.76.200/298RACKS-8-1463084538132671unknown———
└ 166.78.76.232/298RACKS-8-1383588624674956unknown———
└ 166.78.76.248/298RACKS-8-1353791534616104unknown———
└ 166.78.77.16/298RACKS-8-1353939023722790unknown———
└ 166.78.77.32/298RSPC-476448B1-BDDB-4908-9510-4B187455366Bunknown———
└ 166.78.77.152/298RACKS-8-1354050134831920unknown———
└ 166.78.77.168/298RACKS-8-1354081695153416unknown———
└ 166.78.77.176/298RSPC-913FB915-DDFA-4542-BCD3-F76E8A07D1E4unknown———
└ 166.78.77.200/298RACKS-8-1354244423571448unknown———
└ 166.78.77.248/298RACKS-8-1371135854760158unknown———
└ 166.78.78.0/304RACKS-8-1353526934523297unknown———
└ 166.78.78.20/304RACKS-8-1401283097142149unknown———
└ 166.78.78.24/304RACKS-8-1353612733510489unknown———
└ 166.78.78.28/304RACKS-8-1353619574720455unknown———
└ 166.78.78.32/304RSPC-2C102743-CC15-41A3-A87B-2DC2AF95837Cunknown———
└ 166.78.78.44/304RACKS-8-1353645974630342unknown———
└ 166.78.78.52/304RACKS-8-1353703933520587unknown———
└ 166.78.78.56/304RACKS-8-1353943094886634unknown———
└ 166.78.78.76/304RACKS-8-1418887234322967unknown———
└ 166.78.78.80/304RACKS-8-1353975494640650unknown———
└ 166.78.78.88/304RACKS-8-1353975625138014unknown———
└ 166.78.78.92/304RACKS-8-1353989174141972unknown———
└ 166.78.78.104/304RACKS-8-1391449456655668unknown———
└ 166.78.78.108/304RACKS-8-1353995894885363unknown———
└ 166.78.78.120/304RSPC-E393D145-94F7-4EC0-8EC4-DAA9FF5AB547unknown———
└ 166.78.78.128/304RACKS-8-1354020974804898unknown———
└ 166.78.78.136/304RACKS-8-1354031294613352unknown———
└ 166.78.78.140/304RSPC-905D6722-BFCA-43B1-AE7B-2A10CC2E6DC0unknown———
└ 166.78.78.152/304RACKS-8-1442439379080841unknown———
└ 166.78.78.168/304RACKS-8-1418891296238574unknown———
└ 166.78.78.172/304RACKS-8-1354064655947881unknown———
└ 166.78.78.176/304RACKS-8-1354064774014728unknown———
└ 166.78.78.184/304RACKS-8-1354065134470590unknown———
└ 166.78.78.200/304RACKS-8-1401290426236140unknown———
└ 166.78.78.224/304INTERNAL-CUSTOMER-01unknown———
└ 166.78.78.236/304RACKS-8-1354147574680464unknown———
└ 166.78.78.240/304RACKS-8-1354147574837116unknown———
└ 166.78.78.252/304RACKS-8-1354149254065771unknown———
└ 166.78.79.0/2816RACKS-8-1354316773434462unknown———
└ 166.78.79.16/2816RACKS-8-1354633824726698unknown———
└ 166.78.79.48/2816RACKS-8-1354895533926811unknown———
└ 166.78.79.64/2816RACKS-8-1354895533285714unknown———
└ 166.78.79.80/2816RACKS-8-1383758896485658unknown———
└ 166.78.79.112/2816RACKS-8-1355933294937800unknown———
└ 166.78.79.128/298RACKS-8-1356037335105966unknown———
└ 166.78.79.176/2816RACKS-8-1358891294260893unknown———
└ 166.78.79.208/2816RACKS-8-1357269974449981unknown———
← Previous1–200 of 439 · page 1 of 3Next →

A contact marked “via” is the registry's: the record names none of its own, so the registry hands down its parent's.

Network & registry

AnnouncementRouting historyRPKI & IRRWhois & abuse
Origin network

AS19994

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