Data as of Nov 7, 2026

50.57.0.0/17

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
50.56.152.0 - 50.57.239.255	88,064	RACKS-8-NET-4	Rackspace Hosting (RACKS-8) · US	Direct Allocation	Jan 14, 2011	abuse@rackspace.com
└ 50.57.0.32/27	32	RACKS-8-1308583691036714	unknown	—	—	—
└ 50.57.0.64/27	32	RACKS-8-1308585372482684	unknown	—	—	—
└ 50.57.0.128/27	32	RACKS-8-1308939013014786	unknown	—	—	—
└ 50.57.0.160/27	32	RACKS-8-1309284372696873	unknown	—	—	—
└ 50.57.1.8/29	8	RACKS-8-1308865572551988	unknown	—	—	—
└ 50.57.1.24/29	8	RACKS-8-1309199051264677	unknown	—	—	—
└ 50.57.1.32/29	8	RACKS-8-1465331300607241	unknown	—	—	—
└ 50.57.1.40/29	8	RACKS-8-1464986660804670	unknown	—	—	—
└ 50.57.1.48/29	8	RACKS-8-1309111331627101	unknown	—	—	—
└ 50.57.1.104/29	8	INTERNAL-CUSTOMER-01	unknown	—	—	—
└ 50.57.1.152/29	8	RACKS-8-1381260974928671	unknown	—	—	—
└ 50.57.1.192/29	8	RACKS-8-1396998625644209	unknown	—	—	—
└ 50.57.1.200/29	8	RACKS-8-1398756257506070	unknown	—	—	—
└ 50.57.1.208/29	8	RACKS-8-1368540135830653	unknown	—	—	—
└ 50.57.1.224/29	8	RSPC-66E2B6B1-2529-4A5C-AFA1-311D4FF97396	unknown	—	—	—
└ 50.57.2.8/29	8	RACKS-8-56645984010	unknown	—	—	—
└ 50.57.2.20/30	4	RSPC-690991BC-AFAF-445D-B8A6-4EBEDDA272C2	unknown	—	—	—
└ 50.57.2.24/30	4	RACKS-8-1379459054030070	unknown	—	—	—
└ 50.57.2.32/30	4	RSPC-D64E4308-AB67-4AFE-BC5F-74E87B7AAFB1	unknown	—	—	—
└ 50.57.2.40/29	8	RACKS-8-2661006854984010	unknown	—	—	—
└ 50.57.2.52/30	4	RSPC-F164DE11-DC70-438C-B3DC-0B1E3DA735ED	unknown	—	—	—
└ 50.57.2.68/30	4	RACKS-8-1309859651538813	unknown	—	—	—
└ 50.57.2.76/30	4	RACKS-8-1309881733496415	unknown	—	—	—
└ 50.57.2.88/30	4	RACKS-8-1310392577981756	unknown	—	—	—
└ 50.57.2.92/30	4	RACKS-8-1310392580796203	unknown	—	—	—
└ 50.57.2.100/30	4	RACKS-8-1385481627665620	unknown	—	—	—
└ 50.57.2.112/30	4	RACKS-8-1310392591844960	unknown	—	—	—
└ 50.57.2.120/30	4	RACKS-8-1310392592978510	unknown	—	—	—
└ 50.57.2.124/30	4	INTERNAL-CUSTOMER-01	unknown	—	—	—
└ 50.57.2.128/30	4	RACKS-8-1335446053320111	unknown	—	—	—
└ 50.57.2.132/30	4	RACKS-8-1385403495632505	unknown	—	—	—
└ 50.57.2.140/30	4	RACKS-8-1384481294483964	unknown	—	—	—
└ 50.57.2.144/30	4	RSPC-CAB4920F-F6EC-49AB-B776-06772CEFD56B	unknown	—	—	—
└ 50.57.2.152/30	4	RACKS-8-1429816578040169	unknown	—	—	—
└ 50.57.2.168/30	4	RACKS-8-1310488464067608	unknown	—	—	—
└ 50.57.2.172/30	4	RACKS-8-1310488458974360	unknown	—	—	—
└ 50.57.2.176/30	4	RACKS-8-1412880976203956	unknown	—	—	—
└ 50.57.2.192/30	4	RACKS-8-1310600894686652	unknown	—	—	—
└ 50.57.2.200/30	4	RACKS-8-1310615534431243	unknown	—	—	—
└ 50.57.2.216/30	4	RACKS-8-1436198665070040	unknown	—	—	—
└ 50.57.2.228/30	4	RACKS-8-1310740814973710	unknown	—	—	—
└ 50.57.2.236/30	4	RACKS-8-1310747533455739	unknown	—	—	—
└ 50.57.2.248/30	4	RACKS-8-1397244856964250	unknown	—	—	—
└ 50.57.2.252/30	4	RACKS-8-1320245413207961	unknown	—	—	—
└ 50.57.3.2/31	2	RACKS-8-1319212452512113	unknown	—	—	—
└ 50.57.3.4/31	2	RACKS-8-1465489339911482	unknown	—	—	—
└ 50.57.3.8/31	2	RACKS-8-1402501457903663	unknown	—	—	—
└ 50.57.3.18/31	2	RACKS-8-1310392604639618	unknown	—	—	—
└ 50.57.3.46/31	2	RACKS-8-1310567654259103	unknown	—	—	—
└ 50.57.3.52/31	2	RACKS-8-1439311709976555	unknown	—	—	—
└ 50.57.3.62/31	2	RACKS-8-1310682375500620	unknown	—	—	—
└ 50.57.3.64/31	2	RSPC-5A968ED8-213F-46C2-97F1-4503F522ED75	unknown	—	—	—
└ 50.57.3.70/31	2	RACKS-8-1458774497611444	unknown	—	—	—
└ 50.57.3.88/31	2	RSPC-36C4068D-E1E5-4DB3-B3EA-ED7DE3C7A6CA	unknown	—	—	—
└ 50.57.3.96/31	2	RACKS-8-1442325977579638	unknown	—	—	—
└ 50.57.3.104/31	2	RSPC-4ED33EB8-2B71-4487-92B4-C8832032116E	unknown	—	—	—
└ 50.57.3.108/31	2	RSPC-11444659-BD27-4BAC-B1BB-EF73C92D2FA8	unknown	—	—	—
└ 50.57.3.114/31	2	RACKS-8-1311347654113876	unknown	—	—	—
└ 50.57.3.116/31	2	RACKS-8-1383502454076293	unknown	—	—	—
└ 50.57.3.122/31	2	RACKS-8-1385415135227776	unknown	—	—	—
└ 50.57.3.134/31	2	RACKS-8-1311783134834658	unknown	—	—	—
└ 50.57.3.138/31	2	RACKS-8-1311802334263757	unknown	—	—	—
└ 50.57.3.142/31	2	RACKS-8-1311873854130591	unknown	—	—	—
└ 50.57.3.144/31	2	RACKS-8-1311878894288696	unknown	—	—	—
└ 50.57.3.156/31	2	RACKS-8-1312309815721389	unknown	—	—	—
└ 50.57.3.158/31	2	RACKS-8-1312309334601576	unknown	—	—	—
└ 50.57.3.162/31	2	RACKS-8-1417209030375436	unknown	—	—	—
└ 50.57.3.164/31	2	RACKS-8-1378253293804474	unknown	—	—	—
└ 50.57.3.170/31	2	RACKS-8-1312408094389090	unknown	—	—	—
└ 50.57.3.190/31	2	RACKS-8-1312574774797454	unknown	—	—	—
└ 50.57.3.196/31	2	RACKS-8-1312586774111498	unknown	—	—	—
└ 50.57.3.204/31	2	RSPC-19A4D564-8AFA-426F-A1C8-B0F679CF2321	unknown	—	—	—
└ 50.57.3.208/31	2	RACKS-8-1441096471016774	unknown	—	—	—
└ 50.57.3.210/31	2	RACKS-8-1435914142052793	unknown	—	—	—
└ 50.57.3.212/31	2	RACKS-8-1312974975805792	unknown	—	—	—
└ 50.57.3.216/31	2	RACKS-8-131914203941553	unknown	—	—	—
└ 50.57.3.224/31	2	RACKS-8-1408535055112610	unknown	—	—	—
└ 50.57.3.228/31	2	RACKS-8-131914283948553	unknown	—	—	—
└ 50.57.3.234/31	2	RACKS-8-1313389574270236	unknown	—	—	—
└ 50.57.3.240/31	2	RSPC-F7135F8C-5CB6-4AA7-AF17-E48207412E71	unknown	—	—	—
└ 50.57.3.252/31	2	RACKS-8-1448031858464054	unknown	—	—	—
└ 50.57.3.254/31	2	RSPC-967D55B5-12B0-447D-9FFF-C28A15D872B4	unknown	—	—	—
└ 50.57.4.0/29	8	RACKS-8-1408403177754266	unknown	—	—	—
└ 50.57.4.8/29	8	RACKS-8-1309917852270099	unknown	—	—	—
└ 50.57.4.16/29	8	RACKS-8-1310392575796309	unknown	—	—	—
└ 50.57.4.32/29	8	RACKS-8-1310392578890166	unknown	—	—	—
└ 50.57.4.40/29	8	RACKS-8-1352051534475319	unknown	—	—	—
└ 50.57.4.56/29	8	RSPC-21FBB7DD-FE29-4D0B-87A0-4BE89EC9E4EF	unknown	—	—	—
└ 50.57.4.88/29	8	RACKS-8-1381344974427962	unknown	—	—	—
└ 50.57.4.96/29	8	RACKS-8-1384821254497226	unknown	—	—	—
└ 50.57.4.152/29	8	RACKS-8-1386899655181661	unknown	—	—	—
└ 50.57.4.160/29	8	RACKS-8-1462461426458802	unknown	—	—	—
└ 50.57.4.176/29	8	RSPC-12CED410-1BBC-4FE1-A24C-F97A495F37FC	unknown	—	—	—
└ 50.57.4.184/29	8	RACKS-8-1442322267821210	unknown	—	—	—
└ 50.57.4.208/29	8	RACKS-8-1310525534789888	unknown	—	—	—
└ 50.57.4.240/29	8	RACKS-8-1310572574550153	unknown	—	—	—
└ 50.57.5.0/29	8	RSPC-79E73514-0BA9-4C48-A52F-9139716D527A	unknown	—	—	—
└ 50.57.5.16/29	8	RACKS-8-1310579534360963	unknown	—	—	—
└ 50.57.5.40/29	8	RSPC-CA63158E-4EF8-4EBF-80BE-F054E1FE544F	unknown	—	—	—
└ 50.57.5.48/29	8	RACKS-8-1310666534038795	unknown	—	—	—
└ 50.57.5.56/29	8	RACKS-8-1310666534761622	unknown	—	—	—
└ 50.57.5.72/29	8	RACKS-8-1310744534903480	unknown	—	—	—
└ 50.57.5.128/29	8	RACKS-8-1326294612434403	unknown	—	—	—
└ 50.57.5.136/29	8	RACKS-8-1311016934678374	unknown	—	—	—
└ 50.57.5.160/29	8	RACKS-8-1311371654426495	unknown	—	—	—
└ 50.57.5.176/29	8	RACKS-8-1408452135370124	unknown	—	—	—
└ 50.57.5.192/29	8	RSPC-DD5AE999-3CA2-4900-89C7-8940427D161C	unknown	—	—	—
└ 50.57.5.224/29	8	RACKS-8-1311264016336793	unknown	—	—	—
└ 50.57.5.232/29	8	RACKS-8-1311269294199203	unknown	—	—	—
└ 50.57.5.248/29	8	RACKS-8-1311277216302195	unknown	—	—	—
└ 50.57.6.0/29	8	RACKS-8-1311277216841836	unknown	—	—	—
└ 50.57.6.16/29	8	RACKS-8-1409859136276828	unknown	—	—	—
└ 50.57.6.32/29	8	RACKS-8-1368464533550912	unknown	—	—	—
└ 50.57.6.40/29	8	RACKS-8-1311350173928813	unknown	—	—	—
└ 50.57.6.56/29	8	RACKS-8-1311354854839256	unknown	—	—	—
└ 50.57.6.80/29	8	RSPC-C1AB2AE9-54CF-4B94-AA2C-1225C476859A	unknown	—	—	—
└ 50.57.6.96/29	8	RACKS-8-1311692653697558	unknown	—	—	—
└ 50.57.6.120/29	8	RSPC-EE8CCF84-572A-475D-8056-95C6A0F609C5	unknown	—	—	—
└ 50.57.6.152/29	8	INTERNAL-CUSTOMER-01	unknown	—	—	—
└ 50.57.6.168/29	8	RACKS-8-1311790693054170	unknown	—	—	—
└ 50.57.6.176/29	8	RACKS-8-1311795254848773	unknown	—	—	—
└ 50.57.6.184/29	8	RACKS-8-1335860894254998	unknown	—	—	—
└ 50.57.6.224/29	8	RACKS-8-1434348042727626	unknown	—	—	—
└ 50.57.6.232/29	8	RSPC-0E26ECE7-4FEA-4619-9AE8-AE936DE2FE81	unknown	—	—	—
└ 50.57.7.0/29	8	RACKS-8-1311964335839695	unknown	—	—	—
└ 50.57.7.16/29	8	RACKS-8-1312232534529555	unknown	—	—	—
└ 50.57.7.32/29	8	RACKS-8-1417546234001948	unknown	—	—	—
└ 50.57.7.40/29	8	RSPC-5A2722EA-55FD-4D15-9771-85B32CDF975C	unknown	—	—	—
└ 50.57.7.64/28	16	RACKS-8-989764687	unknown	—	—	—
└ 50.57.7.96/29	8	RACKS-8-1427745258449983	unknown	—	—	—
└ 50.57.7.120/29	8	RACKS-8-1409859036313392	unknown	—	—	—
└ 50.57.7.136/29	8	RACKS-8-1427749937947006	unknown	—	—	—
└ 50.57.7.184/29	8	INTERNAL-CUSTOMER-01	unknown	—	—	—
└ 50.57.7.216/29	8	RACKS-8-1312449854417964	unknown	—	—	—
└ 50.57.7.224/29	8	RACKS-8-131914203948553	unknown	—	—	—
└ 50.57.7.240/29	8	RACKS-8-1428370096773560	unknown	—	—	—
└ 50.57.7.248/29	8	RACKS-8-1312456094914003	unknown	—	—	—
└ 50.57.8.0/27	32	RACKS-8-1309905371744085	unknown	—	—	—
└ 50.57.8.32/27	32	RACKS-8-1310392579181721	unknown	—	—	—
└ 50.57.8.128/27	32	RACKS-8-1210050000000004	unknown	—	—	—
└ 50.57.9.0/28	16	RACKS-8-1349969773477532	unknown	—	—	—
└ 50.57.9.16/28	16	RACKS-8-1376077093143036	unknown	—	—	—
└ 50.57.9.48/28	16	RACKS-8-1426173633262699	unknown	—	—	—
└ 50.57.9.96/28	16	RACKS-8-1312047974234739	unknown	—	—	—
└ 50.57.9.128/28	16	RSPC-0BBBBC8D-00D5-4124-A2B1-225D9BEB5525	unknown	—	—	—
└ 50.57.9.160/27	32	RACKS-8-65498009879084	unknown	—	—	—
└ 50.57.9.192/28	16	RACKS-8-1312321215060390	unknown	—	—	—
└ 50.57.9.208/28	16	RACKS-8-1312321934349991	unknown	—	—	—
└ 50.57.10.6/31	2	RACKS-8-13778854636946	unknown	—	—	—
└ 50.57.10.14/31	2	RACKS-8-1320697453209499	unknown	—	—	—
└ 50.57.10.16/31	2	RACKS-8-1213734449	unknown	—	—	—
└ 50.57.10.26/31	2	RACKS-8-13161203	unknown	—	—	—
└ 50.57.10.30/31	2	RACKS-8-06254599287	unknown	—	—	—
└ 50.57.10.34/31	2	RACKS-8-1417545255420985	unknown	—	—	—
└ 50.57.10.42/31	2	RACKS-8-1314734175642214	unknown	—	—	—
└ 50.57.10.48/31	2	RACKS-8-1417558456170607	unknown	—	—	—
└ 50.57.10.50/31	2	RACKS-8-1449518442822391	unknown	—	—	—
└ 50.57.10.56/31	2	RACKS-8-1355394853331613	unknown	—	—	—
└ 50.57.10.60/31	2	RACKS-8-1315392377155696	unknown	—	—	—
└ 50.57.10.62/31	2	RACKS-8-1315412054612540	unknown	—	—	—
└ 50.57.10.66/31	2	RSPC-0C5FF5E6-5065-4B49-8F32-7CB6EE66CC09	unknown	—	—	—
└ 50.57.10.72/31	2	RACKS-8-1398720628627740	unknown	—	—	—
└ 50.57.10.76/31	2	RACKS-8-1315790654234496	unknown	—	—	—
└ 50.57.10.84/31	2	RACKS-8-1315859894984122	unknown	—	—	—
└ 50.57.10.86/31	2	RACKS-8-1315859894885342	unknown	—	—	—
└ 50.57.10.88/31	2	RACKS-8-1315923254046281	unknown	—	—	—
└ 50.57.10.90/31	2	RACKS-8-1315936215876697	unknown	—	—	—
└ 50.57.10.92/31	2	RACKS-8-1315948215690880	unknown	—	—	—
└ 50.57.10.100/31	2	RACKS-8-1316028134629824	unknown	—	—	—
└ 50.57.10.108/31	2	RSPC-9BB131AC-E2DA-4B2C-B190-0C43B12D42B3	unknown	—	—	—
└ 50.57.10.112/31	2	RACKS-8-1378777094734852	unknown	—	—	—
└ 50.57.10.114/31	2	RACKS-8-1385503454577299	unknown	—	—	—
└ 50.57.10.116/31	2	RACKS-8-1316132774101683	unknown	—	—	—
└ 50.57.10.118/31	2	RACKS-8-1316138416152048	unknown	—	—	—
└ 50.57.10.136/29	8	RACKS-8-5409840951096870	unknown	—	—	—
└ 50.57.10.144/29	8	RACKS-8-132168794	unknown	—	—	—
└ 50.57.10.152/29	8	RACKS-8-98409840403304609	unknown	—	—	—
└ 50.57.10.160/28	16	RACKS-8-87987118980890	unknown	—	—	—
└ 50.57.10.176/28	16	RACKS-8-6541984051068	unknown	—	—	—
└ 50.57.10.208/29	8	RACKS-8-549879841032109	unknown	—	—	—
└ 50.57.10.216/29	8	RACKS-8-195100654987409850	unknown	—	—	—
└ 50.57.10.224/29	8	RACKS-8-5640987098408940	unknown	—	—	—
└ 50.57.10.242/31	2	RACKS-8-1407847335681698	unknown	—	—	—
└ 50.57.10.246/31	2	INTERNAL-CUSTOMER-01	unknown	—	—	—
└ 50.57.11.4/30	4	RACKS-8-1311661575481789	unknown	—	—	—
└ 50.57.11.16/30	4	RACKS-8-1311793215058629	unknown	—	—	—
└ 50.57.11.28/30	4	RACKS-8-1311869774602330	unknown	—	—	—
└ 50.57.11.36/30	4	RSPC-9681C7A6-7089-43EF-A484-0815F65F16D1	unknown	—	—	—
└ 50.57.11.40/30	4	RACKS-8-1373266934051950	unknown	—	—	—
└ 50.57.11.60/30	4	RACKS-8-1312297815496449	unknown	—	—	—
└ 50.57.11.64/29	8	RACKS-8-006540112160	unknown	—	—	—
└ 50.57.11.84/30	4	RACKS-8-1437454940396805	unknown	—	—	—
└ 50.57.11.88/30	4	RSPC-1D4E5E81-28EF-496A-A3B7-22C88BC41F3A	unknown	—	—	—
└ 50.57.11.96/30	4	RACKS-8-1312428374707155	unknown	—	—	—
└ 50.57.11.100/30	4	RACKS-8-1453151299525951	unknown	—	—	—
└ 50.57.11.116/30	4	RACKS-8-1415945431994807	unknown	—	—	—
└ 50.57.11.120/30	4	RACKS-8-1429833497283681	unknown	—	—	—
└ 50.57.11.124/30	4	RACKS-8-1312856774880507	unknown	—	—	—
└ 50.57.11.128/29	8	RACKS-8-1687963211164	unknown	—	—	—
└ 50.57.11.136/30	4	RACKS-8-1312925534202799	unknown	—	—	—

← Previous1–200 of 612 · 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

50.57.0.0/17

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