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Data as of Nov 9, 2026

173.203.128.0/18

No anonymizer space · no proxy exits in 30 days

Rackspace Hosting

Announcement
this exact prefix
No RPKI
Announced by
AS27357
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
173.203.0.0/1665,536RSCP-NET-4Rackspace Hosting (RACKS-8) · USDirect AllocationOct 2, 2009abuse@rackspace.com
└ 173.203.128.0/2816RACKS-8-1398375496776337unknown———
└ 173.203.128.16/2816RACKS-8-1371559933535595unknown———
└ 173.203.128.32/2816RACKS-8-1422897257861345unknown———
└ 173.203.128.80/2816RACKS-8-1408635255532088unknown———
└ 173.203.128.96/2816RACKS-8-14567631781779112unknown———
└ 173.203.128.192/2816RSPC-1261499769011817unknown———
└ 173.203.128.224/2816RSPC-1261534928032537unknown———
└ 173.203.129.16/2816RACKS-8-1402956255690080unknown———
└ 173.203.129.32/2816RSPC-1262031368051814unknown———
└ 173.203.129.48/2816RACKS-8-1378691774597761unknown———
└ 173.203.129.64/2816RACKS-8-14558238461243772unknown———
└ 173.203.129.80/2816RACKS-8-1420063337597990unknown———
└ 173.203.129.112/2816RSPC-1262119568033972unknown———
└ 173.203.129.128/2816RACKS-8-1371763333025155unknown———
└ 173.203.129.176/2816RSPC-1262790968081426unknown———
└ 173.203.129.208/2816RACKS-8-1439311254569700unknown———
└ 173.203.130.16/2816RSPC-1262805731540398unknown———
└ 173.203.130.48/2816RSPC-1262819408145675unknown———
└ 173.203.130.64/2816RSPC-1260284648601928unknown———
└ 173.203.130.80/2816RACKS-8-1435244661132514unknown———
└ 173.203.130.128/2816RSPC-1263311888660053unknown———
└ 173.203.130.144/2816RSPC-1263312488368996unknown———
└ 173.203.130.192/2816RSPC-1263494528457653unknown———
└ 173.203.130.224/2816RSPC-1263590648405754unknown———
└ 173.203.130.240/2816RACKS-8-127211331285unknown———
└ 173.203.131.0/2816RSPC-1263768609109782unknown———
└ 173.203.131.16/2816RSPC-1263835210506647unknown———
└ 173.203.131.32/2816RSPC-1263748448347965unknown———
└ 173.203.131.48/2816RSPC-1263961448044083unknown———
└ 173.203.131.64/2816RACKS-8-1373400134418249unknown———
└ 173.203.131.80/2816RSPC-1263847088958338unknown———
└ 173.203.131.96/2816RSPC-1264030208693962unknown———
└ 173.203.131.128/2816RSPC-126365760813277384unknown———
└ 173.203.131.144/2816RSPC-1264180448350911unknown———
└ 173.203.131.176/2816RSPC-E60C74CF-D8D5-4A62-9304-6CFC6F4BE5DCunknown———
└ 173.203.131.224/2732RSPC-1260814928801449unknown———
└ 173.203.132.0/304NET-173-203-132-0-1unknown———
└ 173.203.132.8/298RSPC-1260457568459062unknown———
└ 173.203.132.16/298RACKSPACE-HOSTING-RSCP-NET-4unknown———
└ 173.203.132.24/298RSPC-1260459968946478unknown———
└ 173.203.132.64/298RSPC-1260483968550071unknown———
└ 173.203.132.104/304RSPC-F3BEE5BB-088A-41FF-8F7E-550C2AB716B3unknown———
└ 173.203.132.108/304RACKS-8-1422471633518583unknown———
└ 173.203.132.128/298RSPC-1260732607559649unknown———
└ 173.203.132.164/304RACKS-8-1422503896031862unknown———
└ 173.203.132.200/298RSPC-1260818649429043unknown———
└ 173.203.132.216/298RSPC-1260827648854786unknown———
└ 173.203.132.232/298RSPC-1260829928272791unknown———
└ 173.203.132.248/304RACKS-8-1422511835129930unknown———
└ 173.203.133.0/298RSPC-1260846137099231unknown———
└ 173.203.133.64/298RACKS-8-1404750377632083unknown———
└ 173.203.133.80/298RSPC-1260564842514unknown———
└ 173.203.133.104/304RACKS-8-1422550937009474unknown———
└ 173.203.133.108/304RACKS-8-1422562232225700unknown———
└ 173.203.133.124/304RACKS-8-1435053979910355unknown———
└ 173.203.133.128/298RSPC-1260919328647353unknown———
└ 173.203.133.144/298RSPC-1260937328346538unknown———
└ 173.203.133.168/298RSPC-1260989888288519unknown———
└ 173.203.133.184/304RACKS-8-1440437062131349unknown———
└ 173.203.133.192/298RACKS-8-1404810737467150unknown———
└ 173.203.133.208/298RSPC-1261012808547459unknown———
└ 173.203.133.232/304RACKS-8-1440443178070346unknown———
└ 173.203.133.236/304RACKS-8-1449052457101012unknown———
└ 173.203.133.240/298RACKS-8-1447012839655243unknown———
└ 173.203.134.16/298RSPC-1261138208842572unknown———
└ 173.203.134.32/304RACKS-8-1440472938765340unknown———
└ 173.203.134.52/304RACKS-8-1422894496349872unknown———
└ 173.203.134.56/304RACKS-8-1462461229507922unknown———
└ 173.203.134.60/304RACKS-8-1422911899459074unknown———
└ 173.203.134.64/304RACKS-8-1422926296435812unknown———
└ 173.203.134.88/304RACKS-8-1437057738859287unknown———
└ 173.203.134.96/304RSPC-6E2CECCE-7D3A-4B4A-BB9F-F6DBFD14E458unknown———
└ 173.203.134.120/298RSPC-1261172048434515unknown———
└ 173.203.134.136/298RACKS-8-1427088377317754unknown———
└ 173.203.134.152/304RACKS-8-1422938536234769unknown———
└ 173.203.134.160/298RSPC-1261236608186586unknown———
└ 173.203.134.168/298RACKS-8-1450279098087401unknown———
└ 173.203.134.176/298RACKS-8-1410208457258637unknown———
└ 173.203.134.188/304RSPC-38D14517-09E5-43A1-99C4-302980F6DFF9unknown———
└ 173.203.134.192/298RSPC-1261255088153668unknown———
└ 173.203.134.200/304RACKS-8-1422942496880948unknown———
└ 173.203.134.204/304RACKS-8-1422943235523981unknown———
└ 173.203.134.224/298RSPC-1261413368438808unknown———
└ 173.203.134.240/304RACKS-8-1422943457329830unknown———
└ 173.203.134.248/298RSPC-1261423088735565unknown———
└ 173.203.135.8/298RSPC-1261426088097038unknown———
└ 173.203.135.32/304RACKS-8-1422991456704876unknown———
└ 173.203.135.36/304RACKS-8-1423002636868374unknown———
└ 173.203.135.40/298RSPC-1261432568476067unknown———
└ 173.203.135.48/298RSPC-1261490048932850unknown———
└ 173.203.135.72/304RACKS-8-1454952378989652unknown———
└ 173.203.135.76/304RACKS-8-1423041976135018unknown———
└ 173.203.135.88/298RSPC-1261497968472285unknown———
└ 173.203.135.104/304RACKS-8-1423045834007910unknown———
└ 173.203.135.136/298RSPC-1261515248130340unknown———
└ 173.203.135.144/304RACKS-8-1435069338639166unknown———
└ 173.203.135.168/298RACKS-8-1409859033195749unknown———
└ 173.203.135.176/298RSPC-1261523888770037unknown———
└ 173.203.135.184/304RACKS-8-1423086377719369unknown———
└ 173.203.135.200/298RSPC-1261526768239329unknown———
└ 173.203.135.208/298RSPC-1261536008536825unknown———
└ 173.203.135.216/298RACKS-8-1419633498968689unknown———
└ 173.203.135.224/298RSPC-1261576808612478unknown———
└ 173.203.136.16/298RSPC-1261590609833676unknown———
└ 173.203.136.26/312RACKS-8-1418404231004201unknown———
└ 173.203.136.32/298INTERNAL-CUSTOMER-01unknown———
└ 173.203.136.64/312RACKS-8-1418744657621532unknown———
└ 173.203.136.72/312RACKS-8-1418931633983275unknown———
└ 173.203.136.78/312RACKS-8-1419191056114967unknown———
└ 173.203.136.88/298RSPC-1261603089358856unknown———
└ 173.203.136.102/312RACKS-8-1419989298000835unknown———
└ 173.203.136.104/298RACKS-8-1369067422847370unknown———
└ 173.203.136.112/298RSPC-1261613409357223unknown———
└ 173.203.136.128/298RSPC-1261627336922134unknown———
└ 173.203.136.152/298RSPC-1261668489408255unknown———
└ 173.203.136.168/312RACKS-8-1420054455348272unknown———
└ 173.203.136.170/312RACKS-8-1421080696062110unknown———
└ 173.203.136.176/298RSPC-1261670888710365unknown———
└ 173.203.136.200/298RSPC-1261687688477578unknown———
└ 173.203.136.212/304RACKS-8-1435140378103316unknown———
└ 173.203.136.248/298RSPC-1261924808447450unknown———
└ 173.203.137.2/312RACKS-8-1421327057454305unknown———
└ 173.203.137.6/312RACKS-8-1421425834849784unknown———
└ 173.203.137.10/312RACKS-8-1421707457780831unknown———
└ 173.203.137.12/312RACKS-8-1421750777463622unknown———
└ 173.203.137.14/312RACKS-8-1421761832817962unknown———
└ 173.203.137.32/298RSPC-1262017568787766unknown———
└ 173.203.137.52/312RACKS-8-1422355336601523unknown———
└ 173.203.137.56/298RACKS-8-1462461498481759unknown———
└ 173.203.137.74/312RACKS-8-1422924977274655unknown———
└ 173.203.137.76/312RACKS-8-1422977656080380unknown———
└ 173.203.137.96/312RACKS-8-1423403657062524unknown———
└ 173.203.137.100/312RSPC-EFCADE9E-8009-493B-BC20-FDFCAD45D3B5unknown———
└ 173.203.137.102/312RACKS-8-1423758498914800unknown———
└ 173.203.137.120/298RSPC-1262034129802932unknown———
└ 173.203.137.160/298RSPC-1262099887375911unknown———
└ 173.203.137.178/312RACKS-8-1425400235531148unknown———
└ 173.203.137.180/312RACKS-8-1425511577496842unknown———
└ 173.203.137.182/312RACKS-8-1442319050642725unknown———
└ 173.203.137.184/298RSPC-1262104448260620unknown———
└ 173.203.137.206/312RACKS-8-1425927136722271unknown———
└ 173.203.137.208/298RACKS-8-1369260375227916unknown———
└ 173.203.137.224/298INTERNAL-CUSTOMER-01unknown———
└ 173.203.137.232/298RSPC-1262122811262582unknown———
└ 173.203.137.240/298RSPC-1262123288100178unknown———
└ 173.203.138.8/298RSPC-1262193608004761unknown———
└ 173.203.138.16/298RSPC-1262142016799225unknown———
└ 173.203.138.32/304RACKS-8-1435350269222466unknown———
└ 173.203.138.36/304RACKS-8-1437400250084992unknown———
└ 173.203.138.40/312RACKS-8-1425927136329134unknown———
└ 173.203.138.42/312RACKS-8-1425931834249341unknown———
└ 173.203.138.44/312RACKS-8-1426007896335257unknown———
└ 173.203.138.46/312RACKS-8-1426157776907947unknown———
└ 173.203.138.48/298RSPC-1262196848022668unknown———
└ 173.203.138.80/312RACKS-8-1426178297591593unknown———
└ 173.203.138.82/312RACKS-8-1426183240294202unknown———
└ 173.203.138.84/312RACKS-8-1426256432420158unknown———
└ 173.203.138.86/312RACKS-8-1426258698675922unknown———
└ 173.203.138.88/298RACKS-8-1416923177538532unknown———
└ 173.203.138.96/298RACKS-8-1456443857299343unknown———
└ 173.203.138.144/298RSPC-1262287568608900unknown———
└ 173.203.138.184/298RACKS-8-1369315694262290unknown———
└ 173.203.138.208/298RACKS-8-1369316294325189unknown———
└ 173.203.138.216/298RACKS-8-1426087936808877unknown———
└ 173.203.138.232/298RSPC-1262377448596716unknown———
└ 173.203.138.240/298RSPC-1262464089862919unknown———
└ 173.203.139.8/298RSPC-1262624048104961unknown———
└ 173.203.139.48/298RSPC-1262632328467029unknown———
└ 173.203.139.80/298RSPC-1262669649276464unknown———
└ 173.203.139.96/298RACKS-8-1416974177548673unknown———
└ 173.203.139.104/298RACKS-8-1369336935822218unknown———
└ 173.203.139.120/298RSPC-1262702287206518unknown———
└ 173.203.139.160/298RACKS-8-1417027832358788unknown———
└ 173.203.139.172/304RACKS-8-1435253777451208unknown———
└ 173.203.139.216/298RACKS-8-1417189832733006unknown———
└ 173.203.139.224/298RACKS-8-1417190656946046unknown———
└ 173.203.139.232/298RACKS-8-1426093936233550unknown———
└ 173.203.139.240/298RACKS-8-1369377625926203unknown———
└ 173.203.140.32/2732RACKS-8-1415398697389059unknown———
└ 173.203.140.64/2732RACKS-8-1368546374835209unknown———
└ 173.203.140.96/2732RSPC-1262280368007840unknown———
└ 173.203.140.128/2732RSPC-1262788449419153unknown———
└ 173.203.140.224/2732RSPC-1262965928350070unknown———
└ 173.203.141.0/2732RSPC-1263400928525821unknown———
└ 173.203.141.32/2732RSPC-1263400928084074unknown———
└ 173.203.141.96/2732RSPC-1263400928094974unknown———
└ 173.203.141.128/2732RACKS-8-1393261695263413unknown———
└ 173.203.141.160/2732RSPC-1263479889639295unknown———
└ 173.203.141.224/2816RACKS-8-1439314257445836unknown———
└ 173.203.141.240/2816RSPC-1264824848895359unknown———
└ 173.203.142.32/2732RSPC-1266005648761527unknown———
└ 173.203.143.32/2732RACKS-8-1397079856934183unknown———
└ 173.203.143.128/2732RSPC-1268667608396221unknown———
└ 173.203.143.160/2732RSPC-1268770208742116unknown———
└ 173.203.143.192/2732RACKS-8-1436556505063543unknown———
└ 173.203.143.224/2732RACKS-8-1373403026430025unknown———
└ 173.203.144.24/298RSPC-1262821569112919unknown———
└ 173.203.144.40/298RSPC-1262886248821782unknown———
└ 173.203.144.64/298RSPC-1262904247744430unknown———
└ 173.203.144.80/298RACKS-8-1369402225777240unknown———
← Previous1–200 of 699 · page 1 of 4Next →

Network & registry

AnnouncementRouting historyRPKI & IRRWhois & abuse
Origin network

AS27357

US
Name
Rackspace Hosting
Type
Hosting
Registered
Feb 20, 2003
Domain
rackspace.com
Industry
Hosting and Cloud Provider
Spamhaus ASN-DROP
not listed