Data as of Nov 11, 2026

72.3.128.0/17

No anonymizer space · no proxy exits in 30 days

Rackspace Hosting

Announcement

this exact prefix

No RPKI

Announced by

AS33070

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
72.3.128.0/17	32,768	RSCP-NET-4	Rackspace Hosting (RACKS-8) · US	Direct Allocation	Oct 4, 2004	abuse@rackspace.com
└ 72.3.215.0/29	8	RACKS-8-1426349656583402	unknown	—	—	—
└ 72.3.215.8/29	8	RSPC-1225136325303792	unknown	—	—	—
└ 72.3.215.32/29	8	RACKS-8-1276210444230147	unknown	—	—	—
└ 72.3.215.48/29	8	RSPC-1256845208923137	unknown	—	—	—
└ 72.3.215.80/28	16	RACKS-8-1311126152648221	unknown	—	—	—
└ 72.3.215.104/29	8	RSPC-BCBD145D-9559-4ECB-93DF-EE8406D33DB9	unknown	—	—	—
└ 72.3.215.128/29	8	RACKS-8-1360592261278914	unknown	—	—	—
└ 72.3.215.152/29	8	GC-72-3-215-152	unknown	—	—	—
└ 72.3.215.160/29	8	RACKS-8-1462461177514299	unknown	—	—	—
└ 72.3.215.176/29	8	RACKS-8-1336059253716166	unknown	—	—	—
└ 72.3.215.224/28	16	RACKS-8-1417556437726267	unknown	—	—	—
└ 72.3.215.240/28	16	RACKS-8-1386153627329220	unknown	—	—	—
└ 72.3.216.0/24	256	RACKS-8-091827347373739874	unknown	—	—	—
└ 72.3.217.16/29	8	RSPC-1265234410367109	unknown	—	—	—
└ 72.3.217.56/29	8	RACKS-8-1284753485072734	unknown	—	—	—
└ 72.3.217.132/30	4	RACKS-8-1395108736527364	unknown	—	—	—
└ 72.3.217.136/29	8	RACKS-8-1325904733635879	unknown	—	—	—
└ 72.3.217.208/28	16	RSPC-1243526291901670	unknown	—	—	—
└ 72.3.217.224/29	8	RSPC-2F41370C-E1FD-4924-8322-0CB63A8F79B4	unknown	—	—	—
└ 72.3.217.248/29	8	RACKS-8-1416519378484862	unknown	—	—	—
└ 72.3.218.112/28	16	RACKS-8-1320252733423690	unknown	—	—	—
└ 72.3.218.128/28	16	RACKS-8-41786478614803148648975-4856485	unknown	—	—	—
└ 72.3.218.144/28	16	RACKS-8-1363956855249741	unknown	—	—	—
└ 72.3.218.176/28	16	RACKS-8-1389827175690964	unknown	—	—	—
└ 72.3.218.192/28	16	RACKS-8-89964824006489260413489-04563	unknown	—	—	—
└ 72.3.218.208/28	16	RACKS-8-1418747055865277	unknown	—	—	—
└ 72.3.218.224/29	8	RSPC-DA67DE50-D07B-46B8-9810-CB09D8CB2740	unknown	—	—	—
└ 72.3.218.240/29	8	RSPC-BEB2A1C3-5AAC-4E13-BA0B-000C5946407E	unknown	—	—	—
└ 72.3.219.32/28	16	RACKS-8-1437546740942264	unknown	—	—	—
└ 72.3.219.48/29	8	RACKS-8-1312574774714517	unknown	—	—	—
└ 72.3.219.72/29	8	RACKS-8-1427902938582026	unknown	—	—	—
└ 72.3.219.136/29	8	RACKS-8-1418670035777610	unknown	—	—	—
└ 72.3.219.192/29	8	RACKS-8-1360592264648154	unknown	—	—	—
└ 72.3.219.208/29	8	RSPC-1268367489913873	unknown	—	—	—
└ 72.3.219.216/29	8	RACKS-8-1432692637391068	unknown	—	—	—
└ 72.3.219.224/27	32	RACKS-8-1385501774581040	unknown	—	—	—
└ 72.3.220.8/29	8	RACKS-8-1320699373057623	unknown	—	—	—
└ 72.3.220.16/29	8	RACKS-8-1462461390629231	unknown	—	—	—
└ 72.3.220.72/29	8	RACKS-8-1421441433030938	unknown	—	—	—
└ 72.3.220.88/29	8	RACKS-8-1277926805012510	unknown	—	—	—
└ 72.3.220.96/28	16	RACKS-8-4178647862480458064885-05064	unknown	—	—	—
└ 72.3.220.112/28	16	RACKS-8-3480648624805648694502-0456042	unknown	—	—	—
└ 72.3.220.128/28	16	RSPC-C9B8CE15-59EE-46C5-A935-BC4E99109BEB	unknown	—	—	—
└ 72.3.220.152/29	8	RACKS-8-1311126144645075	unknown	—	—	—
└ 72.3.220.168/29	8	RACKS-8-1421592496563283	unknown	—	—	—
└ 72.3.220.176/29	8	RACKS-8-1434155297323010	unknown	—	—	—
└ 72.3.220.184/29	8	RACKS-8-1286979245553560	unknown	—	—	—
└ 72.3.220.208/28	16	RACKS-8-1429078938983105	unknown	—	—	—
└ 72.3.220.240/28	16	RACKS-8-1436548705226670	unknown	—	—	—
└ 72.3.221.0/27	32	RACKS-8-1437546740942264	unknown	—	—	—
└ 72.3.221.32/29	8	RACKS-8-1438366254454348	unknown	—	—	—
└ 72.3.221.48/29	8	RSPC-FA822D3C-BAC7-4976-9C2A-AC59A96ED873	unknown	—	—	—
└ 72.3.221.112/28	16	RACKS-8-1455028099675571	unknown	—	—	—
└ 72.3.221.128/29	8	RACKS-8-1431102035255492	unknown	—	—	—
└ 72.3.221.144/28	16	RACKS-8-1325071213894196	unknown	—	—	—
└ 72.3.221.184/29	8	RACKS-8-1442408308582879	unknown	—	—	—
└ 72.3.221.200/29	8	RACKS-8-1322351532900479	unknown	—	—	—
└ 72.3.221.208/28	16	RSPC-1241455453684805	unknown	—	—	—
└ 72.3.221.240/28	16	RACKS-8-6528656401514185734001684909	unknown	—	—	—
└ 72.3.222.8/29	8	RSPC-DB7A4DD0-1D6C-4C88-83CE-6D28922A9E7A	unknown	—	—	—
└ 72.3.222.16/29	8	RACKS-8-1362161295771858	unknown	—	—	—
└ 72.3.222.32/29	8	RACKS-8-1443622579560581	unknown	—	—	—
└ 72.3.222.40/29	8	RSPC-1265636528194067	unknown	—	—	—
└ 72.3.222.48/29	8	RSPC-1254756249045799	unknown	—	—	—
└ 72.3.222.56/29	8	RACKS-8-1279041965280402	unknown	—	—	—
└ 72.3.222.88/29	8	RACKS-8-1429109437946600	unknown	—	—	—
└ 72.3.222.96/28	16	RSPC-1240927453972643	unknown	—	—	—
└ 72.3.222.144/29	8	RSPC-1251762012046725	unknown	—	—	—
└ 72.3.222.168/29	8	RACKS-8-1445201658953268	unknown	—	—	—
└ 72.3.222.192/29	8	RSPC-8D91912A-151C-4928-9127-39B488B9A69F	unknown	—	—	—
└ 72.3.222.208/28	16	RACKS-8-1343402534039829	unknown	—	—	—
└ 72.3.222.240/29	8	RACKS-8-1277916725289237	unknown	—	—	—
└ 72.3.222.248/29	8	RSPC-575C0D93-C4BB-4A2A-B78E-C15252645980	unknown	—	—	—
└ 72.3.223.40/29	8	RACKS-8-1292964007775134	unknown	—	—	—
└ 72.3.223.56/29	8	RACKS-8-1360592266742677	unknown	—	—	—
└ 72.3.223.72/29	8	RACKS-8-1277928605909237	unknown	—	—	—
└ 72.3.223.200/29	8	RACKS-8-1360592266084465	unknown	—	—	—
└ 72.3.223.248/29	8	RACKS-8-1382556854432926	unknown	—	—	—
└ 72.3.224.0/22	1,024	RACKS-8-1298700001029387	Rackspace Host Routes (C03179448) · US	Reassigned	Oct 11, 2012	abuse@rackspace.com via RSCP-NET-4
└ 72.3.228.0/29	8	RACKS-8-1360592267980942	unknown	—	—	—
└ 72.3.228.32/29	8	RACKS-8-1366817426582547	unknown	—	—	—
└ 72.3.228.64/27	32	RACKS-8-1462967181658344	unknown	—	—	—
└ 72.3.228.128/29	8	RSPC-C1E4F9A8-871A-4C5E-9BE3-9BC260426AB9	unknown	—	—	—
└ 72.3.228.136/29	8	RACKS-8-1360592267809910	unknown	—	—	—
└ 72.3.228.152/29	8	RACKS-8-1294869875432948	unknown	—	—	—
└ 72.3.228.160/28	16	RACKS-8-37864786104503648034082060489-04536	unknown	—	—	—
└ 72.3.228.248/29	8	RACKS-8-1364236096590998	unknown	—	—	—
└ 72.3.229.0/26	64	RACKS-8-1360592602117692	unknown	—	—	—
└ 72.3.229.64/28	16	RACKS-8-6124562485206248580603740-204506	unknown	—	—	—
└ 72.3.229.80/29	8	RSPC-1243028892696396	unknown	—	—	—
└ 72.3.229.96/29	8	RACKS-8-1300201326933648	unknown	—	—	—
└ 72.3.229.128/29	8	RACKS-8-1278534845005690	unknown	—	—	—
└ 72.3.229.144/28	16	RSPC-1272383645143163	unknown	—	—	—
└ 72.3.229.160/28	16	RACKS-8-1360592268266354	unknown	—	—	—
└ 72.3.229.192/29	8	RACKS-8-1428072257953162	unknown	—	—	—
└ 72.3.229.208/29	8	RACKS-8-1401972855420110	unknown	—	—	—
└ 72.3.229.240/28	16	RACKS-8-1296072966822670	unknown	—	—	—
└ 72.3.230.0/24	256	RACKS-8-1298700002029387	unknown	—	—	—
└ 72.3.231.8/29	8	RACKS-8-1360592270469850	unknown	—	—	—
└ 72.3.231.16/29	8	RACKS-8-1299155766255339	unknown	—	—	—
└ 72.3.231.88/29	8	RSPC-1268793249927878	unknown	—	—	—
└ 72.3.231.96/28	16	RACKS-8-1311126228466401	unknown	—	—	—
└ 72.3.231.120/29	8	RACKS-8-1283366645375888	unknown	—	—	—
└ 72.3.231.128/29	8	RACKS-8-1426557976846150	unknown	—	—	—
└ 72.3.231.160/28	16	RSPC-1268496489879099	unknown	—	—	—
└ 72.3.231.176/29	8	RSPC-BCC5C7DD-7E06-41E8-8A70-D662FC1372AD	unknown	—	—	—
└ 72.3.231.192/29	8	RACKS-8-1360592269477521	unknown	—	—	—
└ 72.3.231.200/29	8	RACKS-8-1360592269172564	unknown	—	—	—
└ 72.3.231.216/29	8	RACKS-8-1360592269627819	unknown	—	—	—
└ 72.3.231.240/28	16	RACKS-8-72641684708708260304680376-064068	unknown	—	—	—
└ 72.3.232.0/26	64	RACKS-8-1360592579220711	unknown	—	—	—
└ 72.3.232.128/26	64	RACKS-8-1360592571503765	unknown	—	—	—
└ 72.3.232.192/28	16	RACKS-8-417864286248599605600489-04564	unknown	—	—	—
└ 72.3.232.208/29	8	RSPC-1258392128056101	unknown	—	—	—
└ 72.3.232.216/29	8	RSPC-1258392128828875	unknown	—	—	—
└ 72.3.232.240/28	16	RACKS-8-6589842987063449048416845-054061	unknown	—	—	—
└ 72.3.233.0/25	128	RACKS-8-1398867254533812	unknown	—	—	—
└ 72.3.233.128/28	16	RACKS-8-1353454573315914	unknown	—	—	—
└ 72.3.233.144/29	8	RACKS-8-1428094577991685	unknown	—	—	—
└ 72.3.233.152/29	8	RACKS-8-1278534965694739	unknown	—	—	—
└ 72.3.233.160/29	8	RACKS-8-1429120838391794	unknown	—	—	—
└ 72.3.233.192/29	8	RACKS-8-1423090097622429	unknown	—	—	—
└ 72.3.233.208/29	8	RACKS-8-1383075974381471	unknown	—	—	—
└ 72.3.234.8/29	8	RSPC-61AEE810-945E-48D1-A1F4-4B3A24FBE51B	unknown	—	—	—
└ 72.3.234.32/29	8	RACKS-8-1279553645625064	unknown	—	—	—
└ 72.3.234.48/29	8	RACKS-8-1334191933841187	unknown	—	—	—
└ 72.3.234.56/29	8	RSPC-1264602608978321	unknown	—	—	—
└ 72.3.234.64/29	8	RACKS-8-1278550205192420	unknown	—	—	—
└ 72.3.234.72/29	8	RACKS-8-1429130437390589	unknown	—	—	—
└ 72.3.234.80/29	8	RACKS-8-1352338223557268	unknown	—	—	—
└ 72.3.234.96/29	8	RACKS-8-1336402218427500	unknown	—	—	—
└ 72.3.234.112/28	16	RSPC-1248095173666411	unknown	—	—	—
└ 72.3.234.128/28	16	RSPC-77457118-F29C-4351-90C8-AE58D2A61AF2	unknown	—	—	—
└ 72.3.234.168/29	8	RACKS-8-1429214778138726	unknown	—	—	—
└ 72.3.234.192/29	8	RACKS-8-1421703738778470	unknown	—	—	—
└ 72.3.234.200/29	8	RSPC-6B0E8508-D35D-4760-B0C1-2B2E318A893D	unknown	—	—	—
└ 72.3.234.232/29	8	RACKS-8-1300391885456112	unknown	—	—	—
└ 72.3.235.32/29	8	RSPC-1272933965891053	unknown	—	—	—
└ 72.3.235.44/30	4	RACKS-8-1449672740589636	unknown	—	—	—
└ 72.3.235.48/29	8	RSPC-1264881728376597	unknown	—	—	—
└ 72.3.235.72/29	8	RACKS-8-1336416620943382	unknown	—	—	—
└ 72.3.235.112/29	8	RACKS-8-1360592271388378	unknown	—	—	—
└ 72.3.235.136/29	8	RSPC-1265657528700294	unknown	—	—	—
└ 72.3.235.176/29	8	RSPC-1964F557-D6FC-44F6-8031-066BF05A9CEA	unknown	—	—	—
└ 72.3.235.184/29	8	RSPC-1264521968692178	unknown	—	—	—
└ 72.3.236.0/24	256	RACKS-8-1298700004029387	unknown	—	—	—
└ 72.3.237.8/29	8	RACKS-8-1328818814456288	unknown	—	—	—
└ 72.3.237.16/29	8	RACKS-8-1328835973478016	unknown	—	—	—
└ 72.3.237.24/29	8	RACKS-8-668477687286410351362827637-0646012	unknown	—	—	—
└ 72.3.237.40/29	8	RACKS-8-68271864680041168546082468056-06845	unknown	—	—	—
└ 72.3.237.48/29	8	RACKS-8-60684068687043108747980790351-065406351	unknown	—	—	—
└ 72.3.237.56/29	8	RACKS-8-68176187204687468209-264263541061	unknown	—	—	—
└ 72.3.237.64/28	16	RACKS-8-4654064685140869643654768-064512	unknown	—	—	—
└ 72.3.237.80/28	16	RACKS-8-531146872968246814620468145-26624965881	unknown	—	—	—
└ 72.3.237.112/28	16	RACKS-8-606847687206354680461974-064613	unknown	—	—	—
└ 72.3.237.128/27	32	RACKS-8-802687608784065140693179674-0664986	unknown	—	—	—
└ 72.3.237.248/29	8	RSPC-1225136363800372	unknown	—	—	—
└ 72.3.238.0/24	256	RACKS-8-1298700003029387	unknown	—	—	—
└ 72.3.239.0/27	32	RACKS-8-1355521094310975	unknown	—	—	—
└ 72.3.239.56/29	8	RACKS-8-1431128437674473	unknown	—	—	—
└ 72.3.239.64/27	32	RACKS-8-1329174133045851	unknown	—	—	—
└ 72.3.239.112/29	8	RACKS-8-1274957045464635	unknown	—	—	—
└ 72.3.239.128/27	32	RACKS8-IH-GEOLOC	unknown	—	—	—
└ 72.3.239.216/29	8	RACKS-8-1445012777337005	unknown	—	—	—
└ 72.3.239.240/29	8	RACKS-8-1360592271311322	unknown	—	—	—
└ 72.3.239.248/29	8	RSPC-1225136496195957	unknown	—	—	—
└ 72.3.240.0/24	256	RACKS-8-1298700005029387	unknown	—	—	—
└ 72.3.241.48/28	16	RACKS-8-6579618702684762851460874106-0651416	unknown	—	—	—
└ 72.3.241.88/29	8	RACKS-8-1429280298445977	unknown	—	—	—
└ 72.3.241.96/28	16	RACKS-8-1311126152136622	unknown	—	—	—
└ 72.3.241.112/29	8	RSPC-1265647928125062	unknown	—	—	—
└ 72.3.241.128/29	8	RACKS-8-1360592272227278	unknown	—	—	—
└ 72.3.241.136/29	8	RSPC-90298-1173107828	unknown	—	—	—
└ 72.3.241.144/29	8	RSPC-1229734808231498	unknown	—	—	—
└ 72.3.241.152/29	8	RACKS-8-1429280298360263	unknown	—	—	—
└ 72.3.241.160/29	8	RSPC-1273878366060962	unknown	—	—	—
└ 72.3.241.176/29	8	RACKS-8-1282197005768376	unknown	—	—	—
└ 72.3.241.184/29	8	RACKS-8-1429299859023316	unknown	—	—	—
└ 72.3.241.224/29	8	RACKS-8-1347310820741647	unknown	—	—	—
└ 72.3.241.232/29	8	RACKS-8-1327601654017323	unknown	—	—	—
└ 72.3.242.0/24	256	RACKS-8-1298700009029387	unknown	—	—	—
└ 72.3.243.0/29	8	RACKS-8-1334708655114616	unknown	—	—	—
└ 72.3.243.80/29	8	RSPC-1264104130064098	unknown	—	—	—
└ 72.3.243.88/29	8	RACKS-8-1441917261649746	unknown	—	—	—
└ 72.3.243.104/29	8	RACKS-8-1279055405400932	unknown	—	—	—
└ 72.3.243.112/29	8	RACKS-8-1446573378575993	unknown	—	—	—
└ 72.3.243.120/29	8	RSPC-1264545248935205	unknown	—	—	—
└ 72.3.243.128/28	16	RACKS-8-89426864562485034506834052-4056045	unknown	—	—	—
└ 72.3.243.144/29	8	RACKS-8-1321546818764623	unknown	—	—	—
└ 72.3.243.184/29	8	RSPC-1269044528678197	unknown	—	—	—
└ 72.3.243.224/29	8	RSPC-F8B77017-1EFF-4D27-B4F2-8E3946E76736	unknown	—	—	—
└ 72.3.244.0/28	16	RACKS-8-806406540738754091851-0654152	unknown	—	—	—
└ 72.3.244.16/28	16	RACKS-8-1323724933511164	unknown	—	—	—
└ 72.3.244.32/28	16	RACKS-8-81026840638840683514620510347368-20640574	unknown	—	—	—
└ 72.3.244.48/29	8	RACKS-8-1417731856312504	unknown	—	—	—
└ 72.3.244.64/29	8	RSPC-1264182490215349	unknown	—	—	—
└ 72.3.244.80/29	8	RACKS-8-1371480255551243	unknown	—	—	—
└ 72.3.244.104/29	8	RACKS-8-1283445606907212	unknown	—	—	—
└ 72.3.244.120/29	8	RSPC-97AFB21F-2037-4DEC-8AB3-8F18E17FCE6A	unknown	—	—	—
└ 72.3.244.128/29	8	RACKS-8-1312253534151201	unknown	—	—	—

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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

Announcement Routing history RPKI & IRR Whois & abuse

Origin network

AS33070

Name: Rackspace Hosting
Type: Hosting
Registered: Sep 24, 2004
Domain: rackspace.com
Industry: Hosting and Cloud Provider
Spamhaus ASN-DROP: not listed

72.3.128.0/17

Registrations in this block

Network & registry

AS33070

Who has announced this prefix

Routing history

Route objects on the exact prefix

Registration for this announcement

Abuse contact