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
└ 72.3.151.0/24	256	RACKS-8-0918273401982734	unknown	—	—	—
└ 72.3.153.56/29	8	RACKS-8-1336683135161329	unknown	—	—	—
└ 72.3.153.64/29	8	RSPC-58780-1105180868	unknown	—	—	—
└ 72.3.153.72/29	8	RACKS-8-1412719455547757	unknown	—	—	—
└ 72.3.153.88/29	8	RACKS-8-78618716846884681249-16416854	unknown	—	—	—
└ 72.3.153.112/29	8	RACKS-8-7216514892063674508564152-064065	unknown	—	—	—
└ 72.3.153.160/27	32	RACKS-8-1334270534125702	unknown	—	—	—
└ 72.3.153.192/29	8	RSPC-88113-1172131727	unknown	—	—	—
└ 72.3.153.200/29	8	RSPC-115303-1174345476	unknown	—	—	—
└ 72.3.153.208/28	16	RSPC-1C8063A9-441B-4E61-A241-A0E17F0D32EE	unknown	—	—	—
└ 72.3.153.232/29	8	RACKS-8-4086416870368704867400540-2059967960841	unknown	—	—	—
└ 72.3.154.0/26	64	RSPC-58340-1104177228	unknown	—	—	—
└ 72.3.154.72/29	8	RACKS-8-1378851023856152	unknown	—	—	—
└ 72.3.154.120/29	8	RSPC-58518-1104558945	unknown	—	—	—
└ 72.3.154.128/28	16	RACKS-8-1308400812292047	unknown	—	—	—
└ 72.3.154.144/29	8	RSPC-1621CE5B-FFB1-4BA2-A294-D573012B30C3	unknown	—	—	—
└ 72.3.154.152/29	8	RACKS-8-1447080378940122	unknown	—	—	—
└ 72.3.154.160/29	8	RSPC-58511-1104824296	unknown	—	—	—
└ 72.3.154.176/28	16	RACKS-8-1357575734776350	unknown	—	—	—
└ 72.3.154.208/28	16	RSPC-58561-1104968563	unknown	—	—	—
└ 72.3.154.232/29	8	RSPC-58729-1105075286	unknown	—	—	—
└ 72.3.155.8/29	8	RSPC-57508-1103568456	unknown	—	—	—
└ 72.3.155.16/28	16	RACKS-8-2687046430584068401544-06984	unknown	—	—	—
└ 72.3.155.32/28	16	RACKS-8-606847064840016841825451-0564856	unknown	—	—	—
└ 72.3.155.48/28	16	RSPC-57982-1103654157	unknown	—	—	—
└ 72.3.155.64/28	16	RSPC-58161-1103678706	unknown	—	—	—
└ 72.3.155.80/28	16	RACKS-8-1437546740942264	unknown	—	—	—
└ 72.3.155.96/29	8	RSPC-58185-1103699827	unknown	—	—	—
└ 72.3.155.104/29	8	RSPC-58076-1103766798	unknown	—	—	—
└ 72.3.155.152/29	8	RACKS-8-1417723336765337	unknown	—	—	—
└ 72.3.155.176/29	8	RACKS-8-1434059659012719	unknown	—	—	—
└ 72.3.155.184/29	8	RSPC-58342-1104746756	unknown	—	—	—
└ 72.3.155.192/30	4	RSPC-196E0F99-462C-40EF-8F8F-111005AAED77	unknown	—	—	—
└ 72.3.155.196/31	2	RACKS-8-1417698035147291	unknown	—	—	—
└ 72.3.155.198/31	2	RACKS-8-1360592244145239	unknown	—	—	—
└ 72.3.155.220/31	2	RACKS-8-1309352772794403	unknown	—	—	—
└ 72.3.155.226/31	2	RACKS-8-1302385926058615	unknown	—	—	—
└ 72.3.155.232/30	4	RACKS-8-1291829646501163	unknown	—	—	—
└ 72.3.155.240/28	16	RACKS-8-71687406450654386714309-0640651	unknown	—	—	—
└ 72.3.156.0/28	16	RSPC-22EAD357-DC3E-4BD9-A46F-95F4AB0E90A4	unknown	—	—	—
└ 72.3.156.32/29	8	RACKS-8-301687818079605468-206840	unknown	—	—	—
└ 72.3.156.64/28	16	RSPC-57620-1102986685	unknown	—	—	—
└ 72.3.156.96/28	16	RACKS-8-4068716873403379045-05465	unknown	—	—	—
└ 72.3.156.112/29	8	RACKS-8-1360168934266981	unknown	—	—	—
└ 72.3.156.120/29	8	RSPC-80797-1139933888	unknown	—	—	—
└ 72.3.156.160/28	16	RSPC-57902-1103178928	unknown	—	—	—
└ 72.3.156.192/29	8	RACKS-8-1389113776887391	unknown	—	—	—
└ 72.3.156.200/29	8	RACKS-8-1307136612151373	unknown	—	—	—
└ 72.3.156.232/29	8	RSPC-57926-1103271314	unknown	—	—	—
└ 72.3.156.248/29	8	RACKS-8-1436895141760103	unknown	—	—	—
└ 72.3.157.0/28	16	RSPC-57154-1108204441	unknown	—	—	—
└ 72.3.157.16/29	8	RSPC-64974-1116369922	unknown	—	—	—
└ 72.3.157.32/28	16	RSPC-57273-1108204443	unknown	—	—	—
└ 72.3.157.64/29	8	RACKS-8-1410816855176973	unknown	—	—	—
└ 72.3.157.96/29	8	RACKS-8-6528656401514185734064851684909	unknown	—	—	—
└ 72.3.157.128/27	32	RSPC-57590-1102641829	unknown	—	—	—
└ 72.3.157.160/29	8	RSPC-57590-1102641934	unknown	—	—	—
└ 72.3.157.168/29	8	RSPC-57685-1102692269	unknown	—	—	—
└ 72.3.157.176/28	16	RSPC-57667-1102663953	unknown	—	—	—
└ 72.3.157.208/31	2	RSPC-2854362C-C4AC-449A-9F7D-488FF6265780	unknown	—	—	—
└ 72.3.157.226 - 72.3.157.233	8	RSPC-28626-57784050305	unknown	—	—	—
└ 72.3.157.236/31	2	RACKS-8-1313071215776166	unknown	—	—	—
└ 72.3.157.244/30	4	RACKS-8-1284034565045575	unknown	—	—	—
└ 72.3.158.8/29	8	RACKS-8-1321675933865337	unknown	—	—	—
└ 72.3.158.40/29	8	RSPC-F15B1977-5224-4C78-A917-8B2BDA2E3308	unknown	—	—	—
└ 72.3.158.48/29	8	RACKS-8-1309554372688064	unknown	—	—	—
└ 72.3.158.56/29	8	RACKS-8-806403716786540033-06846	unknown	—	—	—
└ 72.3.158.80/29	8	RACKS-8-24818648362089-204985260545	unknown	—	—	—
└ 72.3.158.88/29	8	RACKS-8-21284681246814203684184152-054	unknown	—	—	—
└ 72.3.158.96/29	8	RACKS-8-7064035484794033846501-06845614	unknown	—	—	—
└ 72.3.158.104/29	8	RSPC-127199-1185775402	unknown	—	—	—
└ 72.3.158.136/29	8	RACKS-8-1436971471690880	unknown	—	—	—
└ 72.3.158.152/29	8	RACKS-8-1436994739563207	unknown	—	—	—
└ 72.3.158.176/28	16	RACKS-8-87168710623818406184-0645154061	unknown	—	—	—
└ 72.3.158.192/28	16	RACKS-8-654168712086371068415-046041	unknown	—	—	—
└ 72.3.159.32/29	8	RACKS-8-1437161459927928	unknown	—	—	—
└ 72.3.159.48/29	8	RSPC-81343-1139897487	unknown	—	—	—
└ 72.3.159.56/29	8	RACKS-8-1454985738448444	unknown	—	—	—
└ 72.3.159.80/29	8	RSPC-1228856168686111	unknown	—	—	—
└ 72.3.159.216/30	4	RSPC-AD044DD6-471F-4DC0-9241-75C21E126DD0	unknown	—	—	—
└ 72.3.159.220/30	4	RSPC-4DDE3B90-A8EB-4615-9416-97CB6D09B97E	unknown	—	—	—
└ 72.3.159.228/31	2	RACKS-8-1309683851380101	unknown	—	—	—
└ 72.3.159.236/31	2	RACKS-8-1330463414497717	unknown	—	—	—
└ 72.3.159.240/31	2	RACKS-8-1293116885978141	unknown	—	—	—
└ 72.3.159.246/31	2	RACKS-8-1446587441564890	unknown	—	—	—
└ 72.3.160.64/29	8	RACKS-8-1386247224126947	unknown	—	—	—
└ 72.3.160.96/29	8	RSPC-56877-1110491349	unknown	—	—	—
└ 72.3.160.136/29	8	RACKS-8-1373661854635391	unknown	—	—	—
└ 72.3.160.144/28	16	RACKS-8-1402332856021298	unknown	—	—	—
└ 72.3.160.176/29	8	RACKS-8-1437422542980600	unknown	—	—	—
└ 72.3.160.192/28	16	RACKS-8-6871687036840386145-0640615	unknown	—	—	—
└ 72.3.160.228/30	4	RSPC-616F246E-C07D-42FE-8800-F9FE202C303F	unknown	—	—	—
└ 72.3.160.232/30	4	RACKS-8-1421348436286598	unknown	—	—	—
└ 72.3.160.236/30	4	RACKS-8-1287163325036277	unknown	—	—	—
└ 72.3.160.240/30	4	RSPC-60A22D1A-2929-4976-B14A-4067EA7117F7	unknown	—	—	—
└ 72.3.161.0/29	8	RACKS-8-1437423502443275	unknown	—	—	—
└ 72.3.161.16/28	16	RACKS-8-878168760218740364815-06840610	unknown	—	—	—
└ 72.3.161.40/29	8	RSPC-61422-1110121039	unknown	—	—	—
└ 72.3.161.56/29	8	RSPC-58716-1110323524	unknown	—	—	—
└ 72.3.161.64/27	32	RSPC-61201-1109978866	unknown	—	—	—
└ 72.3.161.96/28	16	RACKS-8-1360618574262943	unknown	—	—	—
└ 72.3.161.144/28	16	RACKS-8-871687684036438-065408716874031	unknown	—	—	—
└ 72.3.161.192/30	4	RACKS-8-1360592246643456	unknown	—	—	—
└ 72.3.161.200/31	2	RACKS-8-1422637234027247	unknown	—	—	—
└ 72.3.161.202/31	2	RACKS-8-1360592530960457	unknown	—	—	—
└ 72.3.161.222/31	2	RACKS-8-1309891691779672	unknown	—	—	—
└ 72.3.161.224/31	2	RACKS-8-1293139925010856	unknown	—	—	—
└ 72.3.161.226/31	2	RACKS-8-1285074006700439	unknown	—	—	—
└ 72.3.161.228/31	2	RACKS-8-1284787806616817	unknown	—	—	—
└ 72.3.161.234/31	2	RACKS-8-1420060233755316	unknown	—	—	—
└ 72.3.161.250/31	2	RACKS-8-1420506035139163	unknown	—	—	—
└ 72.3.162.8/29	8	RSPC-61574-1110521101	unknown	—	—	—
└ 72.3.162.16/28	16	RSPC-61194-1110534150	unknown	—	—	—
└ 72.3.162.32/29	8	RACKS-8-1359036495776141	unknown	—	—	—
└ 72.3.162.48/29	8	RSPC-61335-1110753517	unknown	—	—	—
└ 72.3.162.56/29	8	RSPC-1229518209657318	unknown	—	—	—
└ 72.3.162.152/29	8	RACKS-8-54710687106811740284035-064006540	unknown	—	—	—
└ 72.3.162.160/27	32	RACKS-8-68716987103684086153-0640651	unknown	—	—	—
└ 72.3.162.192/26	64	RSPC-61703-1110756005	unknown	—	—	—
└ 72.3.163.16/29	8	RACKS-8-1437570867028533	unknown	—	—	—
└ 72.3.163.24/29	8	RSPC-61881-1111064210	unknown	—	—	—
└ 72.3.163.32/29	8	RSPC-61883-1111065377	unknown	—	—	—
└ 72.3.163.40/29	8	RSPC-61882-1111065588	unknown	—	—	—
└ 72.3.163.80/28	16	RACKS-8-1449681139922402	unknown	—	—	—
└ 72.3.163.104/29	8	RACKS-8-1323795491589159	unknown	—	—	—
└ 72.3.163.120/29	8	RSPC-62156-1111473112	unknown	—	—	—
└ 72.3.163.128/29	8	RACKS-8-1311623894935753	unknown	—	—	—
└ 72.3.163.152/29	8	RSPC-65301-1117831865	unknown	—	—	—
└ 72.3.163.176/28	16	RACKS-8-684716981706284601584168406-06405	unknown	—	—	—
└ 72.3.163.192/29	8	RSPC-61686-1111245630	unknown	—	—	—
└ 72.3.163.200/30	4	RACKS-8-65406547843068354103834051-0645068415	unknown	—	—	—
└ 72.3.163.216/29	8	RSPC-59868-1112039080	unknown	—	—	—
└ 72.3.164.24/29	8	RACKS-8-1320468853334271	unknown	—	—	—
└ 72.3.164.32/28	16	RSPC-61201-1112216602	unknown	—	—	—
└ 72.3.164.64/27	32	RSPC-62500-1112228264	unknown	—	—	—
└ 72.3.164.144/29	8	RACKS-8-1361911833556470	unknown	—	—	—
└ 72.3.164.152/29	8	RSPC-62441-1112393926	unknown	—	—	—
└ 72.3.164.160/28	16	RACKS-8-1339557376362142	unknown	—	—	—
└ 72.3.164.176/28	16	RACKS-8-1867861987681640635408-06480684684	unknown	—	—	—
└ 72.3.164.192/29	8	RACKS-8-68761817136837140812405-064041	unknown	—	—	—
└ 72.3.164.204/31	2	RACKS-8-1293307445706130	unknown	—	—	—
└ 72.3.164.216/30	4	RSPC-9503BCBC-BDEB-4579-9705-8769882135F9	unknown	—	—	—
└ 72.3.164.220/30	4	RSPC-890C4AAC-42BF-4861-9D13-6AAE8AED4162	unknown	—	—	—
└ 72.3.164.224/30	4	RACKS-8-1312591575248288	unknown	—	—	—
└ 72.3.164.236/30	4	RSPC-5A4CE889-2246-4001-9D18-0D3984DEA234	unknown	—	—	—
└ 72.3.164.244/31	2	RACKS-8-1362089535701099	unknown	—	—	—
└ 72.3.164.246/31	2	RACKS-8-1424531535858414	unknown	—	—	—
└ 72.3.165.0/27	32	RSPC-62117-1112488670	unknown	—	—	—
└ 72.3.165.32/28	16	RSPC-62117-1112488705	unknown	—	—	—
└ 72.3.165.96/29	8	RSPC-947CF512-B127-44FC-93D7-85545D131E9B	unknown	—	—	—
└ 72.3.165.104/29	8	RSPC-62907-1112812298	unknown	—	—	—
└ 72.3.165.128/28	16	RACKS-8-1365148694955293	unknown	—	—	—
└ 72.3.165.152/29	8	RACKS-8-1370361973017151	unknown	—	—	—
└ 72.3.165.160/29	8	RSPC-1256817969213966	unknown	—	—	—
└ 72.3.165.168/29	8	RSPC-1256818208435126	unknown	—	—	—
└ 72.3.165.176/29	8	RACKS-8-1332979816480032	unknown	—	—	—
└ 72.3.165.194/31	2	RACKS-8-1310392576128680	unknown	—	—	—
└ 72.3.165.204/30	4	RACKS-8-1415992097440447	unknown	—	—	—
└ 72.3.165.208/30	4	RSPC-54B55521-7AE3-4425-AD0D-A5F304F6445D	unknown	—	—	—
└ 72.3.165.212/30	4	RACKS-8-1370890225360350	unknown	—	—	—
└ 72.3.165.218/31	2	RACKS-8-1306871771636913	unknown	—	—	—
└ 72.3.165.226/31	2	RACKS-8-1310392584803872	unknown	—	—	—
└ 72.3.165.244/30	4	RSPC-E713CC8B-78A2-4367-A48F-01BDE3AF5A11	unknown	—	—	—
└ 72.3.166.24/29	8	RSPC-62345-1113244210	unknown	—	—	—
└ 72.3.166.32/29	8	RSPC-62343-1113246677	unknown	—	—	—
└ 72.3.166.48/29	8	RSPC-63101-2005042001	unknown	—	—	—
└ 72.3.166.56/29	8	RSPC-63101-2005042002	unknown	—	—	—
└ 72.3.166.64/28	16	RSPC-61382-1113315821	unknown	—	—	—
└ 72.3.166.96/28	16	RACKS-8-65461876287206840365-0640615	unknown	—	—	—
└ 72.3.166.124/30	4	RACKS-8-1462461458940860	unknown	—	—	—
└ 72.3.166.128/29	8	RACKS-8-1321539733496876	unknown	—	—	—
└ 72.3.166.136/29	8	RACKS-8-1439910143740004	unknown	—	—	—
└ 72.3.166.144/28	16	RSPC-63270-1113533458	unknown	—	—	—
└ 72.3.166.160/27	32	RSPC-63270-1113533506	unknown	—	—	—
└ 72.3.166.192/30	4	RSPC-F217A956-1DFE-4AB5-84FE-FACD8C340892	unknown	—	—	—
└ 72.3.166.196/30	4	RACKS-8-1287558373628347	unknown	—	—	—
└ 72.3.166.206/31	2	RACKS-8-1308750852891566	unknown	—	—	—
└ 72.3.166.210/31	2	RACKS-8-1330841773922263	unknown	—	—	—
└ 72.3.166.212/31	2	RACKS-8-1331091973990068	unknown	—	—	—
└ 72.3.166.214/31	2	RACKS-8-1425916696516977	unknown	—	—	—
└ 72.3.167.32/28	16	RSPC-62768-1113592019	unknown	—	—	—
└ 72.3.167.56/29	8	RSPC-115409-1174228676	unknown	—	—	—
└ 72.3.167.80/28	16	RSPC-957548B6-703E-4673-9EDD-BE6461C3AE47	unknown	—	—	—
└ 72.3.167.104/29	8	RACKS-8-1437672267876513	unknown	—	—	—
└ 72.3.167.128/28	16	RACKS-8-1437546740942264	unknown	—	—	—
└ 72.3.167.152/29	8	RACKS-8-1437684738996438	unknown	—	—	—
└ 72.3.167.168/29	8	RACKS-8-1432010436693342	unknown	—	—	—
└ 72.3.167.176/28	16	RACKS-8-1436882668084485	unknown	—	—	—
└ 72.3.167.192/30	4	RACKS-8-1356124223160212	unknown	—	—	—
└ 72.3.167.204/31	2	RACKS-8-1377071654984750	unknown	—	—	—
└ 72.3.167.220/31	2	INTERNAL-CUSTOMER-01	unknown	—	—	—
└ 72.3.167.228/30	4	RACKS-8-1441049779180743	unknown	—	—	—
└ 72.3.167.240/31	2	RACKS-8-1420987231575284	unknown	—	—	—
└ 72.3.168.0/28	16	RACKS-8-68867618760184768114036403-05460451	unknown	—	—	—
└ 72.3.168.16/28	16	RSPC-6EC2D1E8-CACB-4797-80F7-2AE6FDBDE53B	unknown	—	—	—
└ 72.3.168.32/28	16	RACKS-8-871689712864168476205-05406	unknown	—	—	—
└ 72.3.168.72/29	8	RSPC-63663-1114061668	unknown	—	—	—
└ 72.3.168.88/29	8	RSPC-60418-1114106386	unknown	—	—	—
└ 72.3.168.96/29	8	RSPC-A878C65C-F874-4B1D-9D9F-D03CB90B1D34	unknown	—	—	—
└ 72.3.168.128/29	8	RSPC-94F8A5FE-1D76-4504-B190-6755993C99A4	unknown	—	—	—

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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