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
└ 72.3.168.136/29	8	RSPC-63806-1114229934	unknown	—	—	—
└ 72.3.168.152/29	8	RACKS-8-1454359098672262	unknown	—	—	—
└ 72.3.168.206/31	2	RACKS-8-1313431454069702	unknown	—	—	—
└ 72.3.168.220/31	2	RACKS-8-1421087536654959	unknown	—	—	—
└ 72.3.168.234/31	2	RSPC-2126A7BE-D9CE-43D9-BFFB-1B78B03BCC06	unknown	—	—	—
└ 72.3.168.238/31	2	RACKS-8-1360592248997530	unknown	—	—	—
└ 72.3.168.248/31	2	RACKS-8-1360592248526407	unknown	—	—	—
└ 72.3.169.0/26	64	RSPC-63575-1114481282	unknown	—	—	—
└ 72.3.169.88/29	8	RSPC-63975-1127721518	unknown	—	—	—
└ 72.3.169.104/29	8	RACKS-8-1292259606931651	unknown	—	—	—
└ 72.3.169.112/28	16	RSPC-62893-1114611522	unknown	—	—	—
└ 72.3.169.144/29	8	RSPC-63721-1114619979	unknown	—	—	—
└ 72.3.169.152/29	8	RSPC-67393-1123790177	unknown	—	—	—
└ 72.3.169.176/28	16	RSPC-63804-1114659919	unknown	—	—	—
└ 72.3.169.200/30	4	RSPC-67944868-0665-41D9-ABEB-4064D50F65E9	unknown	—	—	—
└ 72.3.169.232/31	2	RACKS-8-1376489054971062	unknown	—	—	—
└ 72.3.169.236/31	2	RACKS-8-1362153734797159	unknown	—	—	—
└ 72.3.169.244/30	4	RACKS-8-1287587529602296	unknown	—	—	—
└ 72.3.170.24/29	8	RSPC-108149-1167012825	unknown	—	—	—
└ 72.3.170.32/29	8	RSPC-63980-1114829052	unknown	—	—	—
└ 72.3.170.40/29	8	RACKS-8-1439738538257686	unknown	—	—	—
└ 72.3.170.56/29	8	RACKS-8-1438205904807457	unknown	—	—	—
└ 72.3.170.80/29	8	RACKS-8-1456828459931777	unknown	—	—	—
└ 72.3.170.88/29	8	RSPC-64118-1114904051	unknown	—	—	—
└ 72.3.170.96/29	8	RSPC-64076-1114904247	unknown	—	—	—
└ 72.3.170.112/29	8	RSPC-64186-1114957346	unknown	—	—	—
└ 72.3.170.128/29	8	RACKS-8-1408696935975083	unknown	—	—	—
└ 72.3.170.136/29	8	RACKS-8-1434139097901256	unknown	—	—	—
└ 72.3.170.152/29	8	RACKS-8-1437749177291176	unknown	—	—	—
└ 72.3.170.184/29	8	RACKS-8-1423085435979438	unknown	—	—	—
└ 72.3.170.200/31	2	RACKS-8-1298562966925102	unknown	—	—	—
└ 72.3.170.202/31	2	RACKS-8-1298582885655706	unknown	—	—	—
└ 72.3.170.224/31	2	RSPC-1270586408970227	unknown	—	—	—
└ 72.3.170.232/30	4	RACKS-8-1327159094629015	unknown	—	—	—
└ 72.3.170.236/30	4	RSPC-1270886890171951	unknown	—	—	—
└ 72.3.170.252/30	4	RSPC-5D6D74B7-2D4A-4DED-82A0-1D49299C3A58	unknown	—	—	—
└ 72.3.171.0/28	16	RACKS-8-8671687129871968416-26480641	unknown	—	—	—
└ 72.3.171.16/28	16	RSPC-64307-1115133956	unknown	—	—	—
└ 72.3.171.33 - 72.3.171.40	8	RSPC-63644-1115149453	unknown	—	—	—
└ 72.3.171.48/29	8	RACKS-8-1449777860576225	unknown	—	—	—
└ 72.3.171.56/29	8	RSPC-64315-1123422006	unknown	—	—	—
└ 72.3.171.64/29	8	RSPC-C6DF1B94-7F1E-4F88-B177-34E2993BAADD	unknown	—	—	—
└ 72.3.171.80/28	16	RSPC-62820-1115234988	unknown	—	—	—
└ 72.3.171.112/29	8	RACKS-8-1439826056705201	unknown	—	—	—
└ 72.3.171.120/29	8	RACKS-8-1432010437276642	unknown	—	—	—
└ 72.3.171.128/29	8	RACKS-8-1452176179139781	unknown	—	—	—
└ 72.3.171.152/29	8	RACKS-8-1336491617310268	unknown	—	—	—
└ 72.3.171.176/28	16	RACKS-8-1380571334072046	unknown	—	—	—
└ 72.3.171.196 - 72.3.171.211	16	RSPC-62821-1115345808	unknown	—	—	—
└ 72.3.171.224/29	8	RACKS-8-1432046056598099	unknown	—	—	—
└ 72.3.171.240/29	8	RACKS-8-1448293459320900	unknown	—	—	—
└ 72.3.172.0/29	8	RACKS-8-1327097293273892	unknown	—	—	—
└ 72.3.172.16/29	8	RSPC-80059-1161183993	unknown	—	—	—
└ 72.3.172.56/29	8	RSPC-64642-1115824308	unknown	—	—	—
└ 72.3.172.64/29	8	RACKS-8-1432047036741089	unknown	—	—	—
└ 72.3.172.72/29	8	RSPC-64741-1115928192	unknown	—	—	—
└ 72.3.172.80/28	16	RACKS-8-870987198974154403840824-0840653	unknown	—	—	—
└ 72.3.172.96/29	8	RACKS-8-6587980048964213504833-06847048	unknown	—	—	—
└ 72.3.172.104/29	8	RSPC-64771-1115984303	unknown	—	—	—
└ 72.3.172.160/28	16	RACKS-8-6857896470864068146085-0486065	unknown	—	—	—
└ 72.3.173.112/29	8	RSPC-64933-1116376406	unknown	—	—	—
└ 72.3.173.144/31	2	RACKS-8-1440791542533705	unknown	—	—	—
└ 72.3.173.146/31	2	RACKS-8-1390237936917273	unknown	—	—	—
└ 72.3.173.148/31	2	RACKS-8-1390238056306502	unknown	—	—	—
└ 72.3.173.150/31	2	RACKS-8-1390238175418609	unknown	—	—	—
└ 72.3.173.152/31	2	RACKS-8-1390238176864886	unknown	—	—	—
└ 72.3.173.160/29	8	RACKS-8-1455116177935808	unknown	—	—	—
└ 72.3.173.200/29	8	RSPC-64283-1117127935	unknown	—	—	—
└ 72.3.173.208/29	8	RACKS-8-1354651454023224	unknown	—	—	—
└ 72.3.173.224/28	16	RSPC-65569-1117625558	unknown	—	—	—
└ 72.3.174.0/28	16	RSPC-64864-1116347275	unknown	—	—	—
└ 72.3.174.16/28	16	RSPC-65017-1116448057	unknown	—	—	—
└ 72.3.174.32/29	8	RSPC-1241032332690144	unknown	—	—	—
└ 72.3.174.40/29	8	RACKS-8-1339527737386665	unknown	—	—	—
└ 72.3.174.48/29	8	RACKS-8-1437758904586468	unknown	—	—	—
└ 72.3.174.56/29	8	RSPC-65216-1116708643	unknown	—	—	—
└ 72.3.174.88/29	8	RSPC-70918-1125008539	unknown	—	—	—
└ 72.3.174.96/29	8	RACKS-8-1322927893372354	unknown	—	—	—
└ 72.3.174.104/29	8	RACKS-8-1340901855634342	unknown	—	—	—
└ 72.3.174.112/29	8	RACKS-8-1308356651023866	unknown	—	—	—
└ 72.3.174.120/29	8	RACKS-8-1423085435522246	unknown	—	—	—
└ 72.3.174.128/29	8	RSPC-65300-1117113982	unknown	—	—	—
└ 72.3.174.136/29	8	RSPC-65302-1117114137	unknown	—	—	—
└ 72.3.174.144/29	8	RSPC-65303-1117114294	unknown	—	—	—
└ 72.3.174.152/29	8	RSPC-65304-1117114429	unknown	—	—	—
└ 72.3.174.168/29	8	RACKS-8-1449781840087974	unknown	—	—	—
└ 72.3.174.184/29	8	RSPC-65585-1117213642	unknown	—	—	—
└ 72.3.174.192/29	8	RACKS-8-1327162693690815	unknown	—	—	—
└ 72.3.175.0/30	4	RSPC-1225136395333044	unknown	—	—	—
└ 72.3.175.4/30	4	RACKS-8-1312311015760232	unknown	—	—	—
└ 72.3.175.16/29	8	RSPC-64794-1117680455	unknown	—	—	—
└ 72.3.175.32/28	16	RSPC-9CC25868-B665-429D-8460-241DCCC6D12B	unknown	—	—	—
└ 72.3.175.48/29	8	RSPC-65252-1117680933	unknown	—	—	—
└ 72.3.175.56/29	8	RACKS-8-1433351436279643	unknown	—	—	—
└ 72.3.175.72/29	8	RSPC-59385-1117726677	unknown	—	—	—
└ 72.3.175.80/29	8	RSPC-59386-1117726931	unknown	—	—	—
└ 72.3.175.96/28	16	RACKS-8-21478264876240453614058-8098674	unknown	—	—	—
└ 72.3.175.128/28	16	RSPC-E0C111CD-8C96-484B-A757-D954110B82AE	unknown	—	—	—
└ 72.3.175.180 - 72.3.175.187	8	RSPC-59386-1117726746	unknown	—	—	—
└ 72.3.175.192/26	64	RSPC-64800-1117670781	unknown	—	—	—
└ 72.3.176.16/28	16	RACKS-8-1336585933787374	unknown	—	—	—
└ 72.3.176.32/29	8	RACKS-8-1365472575704243	unknown	—	—	—
└ 72.3.176.40/29	8	RACKS-8-1340982373957339	unknown	—	—	—
└ 72.3.176.48/28	16	RSPC-115598-1174459548	unknown	—	—	—
└ 72.3.176.64/29	8	RSPC-66152-1118411398	unknown	—	—	—
└ 72.3.176.96/28	16	RSPC-66148-1118435095	unknown	—	—	—
└ 72.3.176.112/28	16	RACKS-8-1457565378754529	unknown	—	—	—
└ 72.3.176.136/29	8	RSPC-65514-1118517345	unknown	—	—	—
└ 72.3.176.152/29	8	RACKS-8-1441122261650665	unknown	—	—	—
└ 72.3.176.192/30	4	RSPC-C4347B88-1FCE-4DFD-B15C-1593E12ABF87	unknown	—	—	—
└ 72.3.176.232/29	8	RACKS-8-1440007259318918	unknown	—	—	—
└ 72.3.176.244/30	4	RACKS-8-1360592530167296	unknown	—	—	—
└ 72.3.176.248/30	4	RACKS-8-1302274686060145	unknown	—	—	—
└ 72.3.177.40/29	8	RSPC-66882-1118901040	unknown	—	—	—
└ 72.3.177.48/28	16	RACKS-8-1436941577819433	unknown	—	—	—
└ 72.3.177.72/29	8	RSPC-66922-1118929277	unknown	—	—	—
└ 72.3.177.96/29	8	RSPC-66958-1118948893	unknown	—	—	—
└ 72.3.177.104/29	8	RSPC-66971-1118977366	unknown	—	—	—
└ 72.3.177.128/29	8	RACKS-8-1295047325641505	unknown	—	—	—
└ 72.3.177.144/28	16	RACKS-8-81878624560310148678260453-405754	unknown	—	—	—
└ 72.3.177.160/29	8	RACKS-8-8786278264708864786700000-076427845	unknown	—	—	—
└ 72.3.177.176/28	16	RSPC-643D29E4-333E-498C-80C0-386F042913C3	unknown	—	—	—
└ 72.3.177.194/31	2	RACKS-8-1440167665657525	unknown	—	—	—
└ 72.3.177.196/31	2	RACKS-8-1311126151291919	unknown	—	—	—
└ 72.3.177.198/31	2	RACKS-8-1416876258324869	unknown	—	—	—
└ 72.3.177.202/31	2	RACKS-8-1310533935883855	unknown	—	—	—
└ 72.3.177.236/30	4	RACKS-8-1360592250281274	unknown	—	—	—
└ 72.3.177.244/30	4	RACKS-8-1306805891484204	unknown	—	—	—
└ 72.3.177.250/31	2	RACKS-8-1310655974957919	unknown	—	—	—
└ 72.3.177.252/30	4	RSPC-0A964962-5035-449E-B17B-481E6E621E92	unknown	—	—	—
└ 72.3.178.0/28	16	RSPC-66016-1118993872	unknown	—	—	—
└ 72.3.178.16/28	16	RACKS-8-861784667826909464076-0486485064	unknown	—	—	—
└ 72.3.178.64/28	16	RSPC-64285-1119458821	unknown	—	—	—
└ 72.3.178.80/29	8	RACKS-8-1347289335564929	unknown	—	—	—
└ 72.3.178.88/29	8	RSPC-67238-1119470947	unknown	—	—	—
└ 72.3.178.96/28	16	RACKS-8-1437546740942264	unknown	—	—	—
└ 72.3.178.120/29	8	RACKS-8-1421079136875741	unknown	—	—	—
└ 72.3.178.152/29	8	RACKS-8-1421100136900371	unknown	—	—	—
└ 72.3.178.168/29	8	RSPC-66148-1119542769	unknown	—	—	—
└ 72.3.178.184/29	8	RACKS-8-718426781267480641-04856	unknown	—	—	—
└ 72.3.178.192/27	32	RACKS-8-148672826718648560748-0340879045	unknown	—	—	—
└ 72.3.178.232/29	8	RSPC-67415-1119714300	unknown	—	—	—
└ 72.3.179.32/29	8	RACKS-8-1462461159680073	unknown	—	—	—
└ 72.3.179.48/29	8	RACKS-8-1322952374525577	unknown	—	—	—
└ 72.3.179.80/29	8	RSPC-67393-1119708631	unknown	—	—	—
└ 72.3.179.104/29	8	RSPC-67428-1119726407	unknown	—	—	—
└ 72.3.179.112/28	16	RSPC-67427-1119726233	unknown	—	—	—
└ 72.3.179.140/30	4	RACKS-8-1415659830466186	unknown	—	—	—
└ 72.3.179.144/29	8	RSPC-63688-1119911264	unknown	—	—	—
└ 72.3.179.152/29	8	RACKS-8-1302310807381507	unknown	—	—	—
└ 72.3.179.160/27	32	RSPC-67190-1119930167	unknown	—	—	—
└ 72.3.179.192/29	8	RACKS-8-1334609775091012	unknown	—	—	—
└ 72.3.179.224/27	32	RSPC-67667-1120255830	unknown	—	—	—
└ 72.3.180.8/29	8	RACKS-8-1323395295499754	unknown	—	—	—
└ 72.3.180.16/28	16	RACKS-8-1357157894315587	unknown	—	—	—
└ 72.3.180.48/29	8	RSPC-67501-1119994659	unknown	—	—	—
└ 72.3.180.144/29	8	RSPC-67663-1120158622	unknown	—	—	—
└ 72.3.180.168/29	8	RACKS-8-1413483735582167	unknown	—	—	—
└ 72.3.180.176/28	16	RACKS-8-1343402533273412	unknown	—	—	—
└ 72.3.180.208/29	8	RSPC-30611-032020061451	unknown	—	—	—
└ 72.3.180.224/29	8	RACKS-8-1440081983988535	unknown	—	—	—
└ 72.3.180.232/29	8	RACKS-8-6371862748276478621-41816	unknown	—	—	—
└ 72.3.180.240/29	8	RACKS-8-1440093265574623	unknown	—	—	—
└ 72.3.181.0/28	16	RSPC-67593-1120509863	unknown	—	—	—
└ 72.3.181.32/29	8	RACKS-8-1462461506178553	unknown	—	—	—
└ 72.3.181.48/28	16	RSPC-64144-1120597286	unknown	—	—	—
└ 72.3.181.80/29	8	RSPC-68105-1120658642	unknown	—	—	—
└ 72.3.181.128/28	16	RACKS-8-1434560539968099	unknown	—	—	—
└ 72.3.181.176/29	8	RSPC-68287-1120969629	unknown	—	—	—
└ 72.3.181.184/29	8	RSPC-68286-1120969586	unknown	—	—	—
└ 72.3.181.204/30	4	RACKS-8-1442347942153798	unknown	—	—	—
└ 72.3.181.208/31	2	RACKS-8-1310806454848340	unknown	—	—	—
└ 72.3.181.218/31	2	RACKS-8-1310923097703872	unknown	—	—	—
└ 72.3.181.224/30	4	RACKS-8-1360592530517191	unknown	—	—	—
└ 72.3.181.230/31	2	RSPC-30996991-E5DA-4501-864D-71202D6F93DB	unknown	—	—	—
└ 72.3.181.232/31	2	RACKS-8-1421151136596678	unknown	—	—	—
└ 72.3.181.234/31	2	RACKS-8-1310755934140463	unknown	—	—	—
└ 72.3.181.236/31	2	RACKS-8-1295909046494986	unknown	—	—	—
└ 72.3.181.238/31	2	RACKS-8-1440178580737129	unknown	—	—	—
└ 72.3.181.240/30	4	RSPC-3D314504-C581-4BE8-9906-AA9FD13553B8	unknown	—	—	—
└ 72.3.181.252/30	4	RSPC-669E5921-647D-4106-9C9B-D1EC5C9D3FF8	unknown	—	—	—
└ 72.3.182.0/29	8	RSPC-1258034648112104	unknown	—	—	—
└ 72.3.182.8/29	8	RACKS-8-1335287655439917	unknown	—	—	—
└ 72.3.182.16/28	16	RACKS-8-48256248560153014506-05640531453	unknown	—	—	—
└ 72.3.182.32/27	32	RACKS-8-36981687168410638435-0684016	unknown	—	—	—
└ 72.3.182.64/29	8	RSPC-66886-1121228144	unknown	—	—	—
└ 72.3.182.80/29	8	RSPC-68445-112123481567	unknown	—	—	—
└ 72.3.182.88/29	8	RSPC-68445-11212348156	unknown	—	—	—
└ 72.3.182.96/28	16	RACKS-8-341867638016840646-064806810	unknown	—	—	—
└ 72.3.182.144/29	8	RACKS-8-1386510626605584	unknown	—	—	—
└ 72.3.182.168/29	8	RSPC-36E07A89-7100-439F-A146-646C045F818E	unknown	—	—	—
└ 72.3.182.176/28	16	RACKS-8-6342853847286480497970485-03408548	unknown	—	—	—
└ 72.3.182.192/28	16	RACKS-8-961768706134036841-06405	unknown	—	—	—
└ 72.3.182.208/29	8	RACKS-8-1447804699847667	unknown	—	—	—
└ 72.3.182.224/29	8	RSPC-E929C889-3EC7-4DF6-A5F8-4EB9244F08F8	unknown	—	—	—
└ 72.3.182.240/29	8	RACKS-8-1300373886364625	unknown	—	—	—
└ 72.3.183.0/29	8	RACKS-8-1440095904280435	unknown	—	—	—
└ 72.3.183.16/28	16	RSPC-65820-1121655813	unknown	—	—	—
└ 72.3.183.32/28	16	RACKS-8-1455638446232498	unknown	—	—	—
└ 72.3.183.48/28	16	RSPC-65822-1121656189	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