Data as of Nov 3, 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	[email protected]
└ 72.3.128.0/24	256	RACKS-8-1213009189340938	unknown	—	—	—
└ 72.3.129.2/31	2	RACKS-8-1281632165571642	unknown	—	—	—
└ 72.3.129.30/31	2	RACKS-8-1415718256717134	unknown	—	—	—
└ 72.3.129.32/29	8	RSPC-1263346328516765	unknown	—	—	—
└ 72.3.129.40/30	4	RACKS-8-1415718377005049	unknown	—	—	—
└ 72.3.129.46/31	2	RACKS-8-1415718378365266	unknown	—	—	—
└ 72.3.129.50/31	2	RACKS-8-1415718378136181	unknown	—	—	—
└ 72.3.129.76/31	2	RACKS-8-1334067372527201	unknown	—	—	—
└ 72.3.129.78/31	2	RACKS-8-1334067615163867	unknown	—	—	—
└ 72.3.129.80/28	16	RACKS-8-1415718498406580	unknown	—	—	—
└ 72.3.129.96/31	2	RACKS-8-1338826819977404	unknown	—	—	—
└ 72.3.129.98/31	2	RACKS-8-1335899053038566	unknown	—	—	—
└ 72.3.129.140/31	2	RACKS-8-1415720056451410	unknown	—	—	—
└ 72.3.129.144/31	2	RACKS-8-1338826694056962	unknown	—	—	—
└ 72.3.129.146/31	2	RACKS-8-1335898457863771	unknown	—	—	—
└ 72.3.129.150/31	2	RACKS-8-1333737734196506	unknown	—	—	—
└ 72.3.129.154/31	2	RACKS-8-1333738693218282	unknown	—	—	—
└ 72.3.129.156/31	2	RACKS-8-1335890894533048	unknown	—	—	—
└ 72.3.129.158/31	2	RACKS-8-1333741455244745	unknown	—	—	—
└ 72.3.129.170/31	2	RACKS-8-1334070733121173	unknown	—	—	—
└ 72.3.129.172/31	2	RACKS-8-1334068933499371	unknown	—	—	—
└ 72.3.129.174/31	2	RACKS-8-1380253694475327	unknown	—	—	—
└ 72.3.129.176/31	2	RACKS-8-1379318293274700	unknown	—	—	—
└ 72.3.129.184/31	2	RACKS-8-1335890656322345	unknown	—	—	—
└ 72.3.129.198/31	2	RACKS-8-1334068815491680	unknown	—	—	—
└ 72.3.129.208/31	2	RACKS-8-1334069052115615	unknown	—	—	—
└ 72.3.129.232/31	2	RACKS-8-1415720777244167	unknown	—	—	—
└ 72.3.129.240/28	16	RACKS-8-1360592555340999	unknown	—	—	—
└ 72.3.130.0/24	256	RACKS-8-0918273401239874	unknown	—	—	—
└ 72.3.131.0/24	256	RACKS-8-10099189340938	unknown	—	—	—
└ 72.3.132.0/26	64	RSPC-57118-1108011619	unknown	—	—	—
└ 72.3.132.64/26	64	RSPC-56947-1108011624	unknown	—	—	—
└ 72.3.132.128/26	64	RACKS-8-1350005173566453	unknown	—	—	—
└ 72.3.132.192/26	64	RACKS-8-1350005173764884	unknown	—	—	—
└ 72.3.133.0/24	256	RACKS-8-12399189340938	unknown	—	—	—
└ 72.3.134.16/29	8	RSPC-57501-1108011629	unknown	—	—	—
└ 72.3.134.24/29	8	RACKS-8-1385524575359626	unknown	—	—	—
└ 72.3.134.56/29	8	RSPC-57590-1108011637	unknown	—	—	—
└ 72.3.134.72/29	8	RSPC-57677-1108011640	unknown	—	—	—
└ 72.3.134.96/29	8	RACKS-8-1435318339235552	unknown	—	—	—
└ 72.3.134.128/28	16	RSPC-8B693238-32BF-42F6-AD5A-E8D3D654EA3D	unknown	—	—	—
└ 72.3.134.144/29	8	RACKS-8-1379332694128984	unknown	—	—	—
└ 72.3.134.160/29	8	RACKS-8-1362537255410907	unknown	—	—	—
└ 72.3.134.216/29	8	RSPC-EB1433D3-08C2-4A92-B1B7-C61B652889D7	unknown	—	—	—
└ 72.3.134.224/29	8	RACKS-8-1362404055341734	unknown	—	—	—
└ 72.3.134.240/29	8	RACKS-8-1430922139359644	unknown	—	—	—
└ 72.3.135.0/24	256	RACKS-8-1298799340938	unknown	—	—	—
└ 72.3.136.8/29	8	RSPC-1BA5AE14-A8E0-4CFF-A996-A4026A0B6B25	unknown	—	—	—
└ 72.3.136.16/29	8	RACKS-8-1417617255352895	unknown	—	—	—
└ 72.3.136.32/29	8	RSPC-58067-1108011678	unknown	—	—	—
└ 72.3.136.48/29	8	RSPC-58143-1108011682	unknown	—	—	—
└ 72.3.136.64/28	16	RACKS-8-58671698720691704853681-219506	unknown	—	—	—
└ 72.3.136.80/29	8	RSPC-58324-1108011690	unknown	—	—	—
└ 72.3.136.112/29	8	RACKS-8-1462461204520208	unknown	—	—	—
└ 72.3.136.160/28	16	RACKS-8-1426805055354547	unknown	—	—	—
└ 72.3.136.200/29	8	RACKS-8-1400793735602120	unknown	—	—	—
└ 72.3.136.208/28	16	RSPC-58539-1108011713	unknown	—	—	—
└ 72.3.136.224/28	16	RSPC-7D6AEABF-1D4F-4FAE-9326-DDBC76086107	unknown	—	—	—
└ 72.3.136.240/29	8	RACKS-8-1433537898391475	unknown	—	—	—
└ 72.3.136.248/29	8	RACKS-8-1336640175701812	unknown	—	—	—
└ 72.3.137.0/29	8	RACKS-8-1399928056059730	unknown	—	—	—
└ 72.3.137.64/28	16	RSPC-58713-1108011737	unknown	—	—	—
└ 72.3.137.96/28	16	RSPC-58766-1108011743	unknown	—	—	—
└ 72.3.137.112/29	8	RACKS-8-1445371698726289	unknown	—	—	—
└ 72.3.137.120/29	8	RACKS-8-1360592240165194	unknown	—	—	—
└ 72.3.137.152/29	8	RSPC-58987-1108011754	unknown	—	—	—
└ 72.3.137.160/27	32	RSPC-57713-1108011756	unknown	—	—	—
└ 72.3.137.232/29	8	RSPC-58572-1108011766	unknown	—	—	—
└ 72.3.137.240/28	16	RACKS-8-1386165376109612	unknown	—	—	—
└ 72.3.138.16/29	8	RACKS-8-1393341735099990	unknown	—	—	—
└ 72.3.138.24/29	8	RSPC-58500-1108011776	unknown	—	—	—
└ 72.3.138.32/29	8	RSPC-59085-1108011778	unknown	—	—	—
└ 72.3.138.56/29	8	RSPC-59159-1108011783	unknown	—	—	—
└ 72.3.138.72/29	8	RSPC-59385-1108011787	unknown	—	—	—
└ 72.3.138.96/28	16	RSPC-59395-1108011793	unknown	—	—	—
└ 72.3.138.112/29	8	RSPC-154306D0-642C-46F1-8702-2F6220D11E0B	unknown	—	—	—
└ 72.3.138.120/29	8	RSPC-59471-1108011796	unknown	—	—	—
└ 72.3.138.128/29	8	RACKS-8-1310666416244847	unknown	—	—	—
└ 72.3.138.144/29	8	RACKS-8-52847768743064386146036435-06456	unknown	—	—	—
└ 72.3.138.176/28	16	RSPC-A8A44B3C-2C5C-4F84-9C74-3D629234DBD9	unknown	—	—	—
└ 72.3.138.192/26	64	RSPC-59294-1108011810	unknown	—	—	—
└ 72.3.139.0/24	256	RACKS-8-129879934093829387	unknown	—	—	—
└ 72.3.140.64/27	32	RACKS-8-2687162796861712486215-01468	unknown	—	—	—
└ 72.3.140.96/29	8	RACKS-8-1447691302395804	unknown	—	—	—
└ 72.3.140.120/29	8	RSPC-59834-1108011832	unknown	—	—	—
└ 72.3.140.144/29	8	RACKS-8-1340148374117324	unknown	—	—	—
└ 72.3.140.192/29	8	RSPC-60123-1108011848	unknown	—	—	—
└ 72.3.140.208/29	8	RACKS-8-1323765372341420	unknown	—	—	—
└ 72.3.140.216/29	8	RSPC-59549-1108197621	unknown	—	—	—
└ 72.3.140.224/29	8	RSPC-60183-1108197622	unknown	—	—	—
└ 72.3.141.0/29	8	RSPC-60170-1108197768	unknown	—	—	—
└ 72.3.141.16/29	8	RACKS-8-1310712137817546	unknown	—	—	—
└ 72.3.141.40/29	8	RACKS-8-1360592241275431	unknown	—	—	—
└ 72.3.141.64/29	8	RACKS-8-1336613534663362	unknown	—	—	—
└ 72.3.141.72/29	8	RSPC-1226432529217836	unknown	—	—	—
└ 72.3.141.104/29	8	RACKS-8-71869478782614852648510-0456546	unknown	—	—	—
└ 72.3.141.144/29	8	RACKS-8-1339611134529	unknown	—	—	—
└ 72.3.141.152/29	8	RSPC-FD8E6BC6-BCF3-4410-A31E-56FDAAB34C84	unknown	—	—	—
└ 72.3.141.160/27	32	RACKS-8-1370360534100710	unknown	—	—	—
└ 72.3.141.240/28	16	RACKS-8-1288043406770811	unknown	—	—	—
└ 72.3.142.0/24	256	RACKS-8-1298700000029387	unknown	—	—	—
└ 72.3.143.0/29	8	RSPC-106241-1169077806	unknown	—	—	—
└ 72.3.143.8/29	8	RSPC-1237858812995015	unknown	—	—	—
└ 72.3.143.16/28	16	RACKS-8-8462425862048906485302-048564	unknown	—	—	—
└ 72.3.143.32/29	8	RSPC-8CA5599D-991E-4897-B8A4-9C0AC59725CA	unknown	—	—	—
└ 72.3.143.40/29	8	RACKS-8-1325195893828889	unknown	—	—	—
└ 72.3.143.48/29	8	RACKS-8-1366040655004803	unknown	—	—	—
└ 72.3.143.56/29	8	RACKS-8-1454943258247020	unknown	—	—	—
└ 72.3.143.64/29	8	RACKS-8-1450108844804560	unknown	—	—	—
└ 72.3.143.80/28	16	RACKS-8-652491867140688081486101-21489154	unknown	—	—	—
└ 72.3.143.96/28	16	RACKS-8-281468470154136480681485-0640	unknown	—	—	—
└ 72.3.143.112/28	16	ABAMON-TECHNOLOGY-RSPC-61031-2006012502	unknown	—	—	—
└ 72.3.143.144/29	8	RACKS-8-1351542374814049	unknown	—	—	—
└ 72.3.143.176/29	8	RSPC-1238303534581320	unknown	—	—	—
└ 72.3.143.184/29	8	RACKS-8-1289858406128517	unknown	—	—	—
└ 72.3.143.192/29	8	RSPC-93248-1171803253	unknown	—	—	—
└ 72.3.143.232/29	8	RACKS-8-1413469095799082	unknown	—	—	—
└ 72.3.143.240/29	8	RACKS-8-1283880125700150	unknown	—	—	—
└ 72.3.143.248/29	8	RACKS-8-1423083857835923	unknown	—	—	—
└ 72.3.144.0/29	8	RSPC-1225136452059461	unknown	—	—	—
└ 72.3.144.32/29	8	RACKS-8-1334169374605399	unknown	—	—	—
└ 72.3.144.56/29	8	RSPC-81819-1165671024	unknown	—	—	—
└ 72.3.144.80/28	16	RACKS-8-728468046398372401368740-054120	unknown	—	—	—
└ 72.3.144.96/28	16	RACKS-8-1446982241044018	unknown	—	—	—
└ 72.3.144.112/28	16	ABAMON-TECHNOLOGY-RSPC-62621-2006012502	unknown	—	—	—
└ 72.3.144.128/29	8	RACKS-8-1347309853256937	unknown	—	—	—
└ 72.3.144.136/29	8	RACKS-8-1311261014058454	unknown	—	—	—
└ 72.3.144.144/29	8	RACKS-8-1336758135919497	unknown	—	—	—
└ 72.3.144.184/29	8	RACKS-8-0646872816406468761034-084168	unknown	—	—	—
└ 72.3.144.204/31	2	RACKS-8-1422289834862084	unknown	—	—	—
└ 72.3.144.208/28	16	RACKS-8-82688780680438100300580-0650645	unknown	—	—	—
└ 72.3.144.224/28	16	RACKS-8-2856748164044060474865-025784104	unknown	—	—	—
└ 72.3.144.240/28	16	RACKS-8-4586470986435402164350510-06840685	unknown	—	—	—
└ 72.3.145.16/29	8	RACKS-8-1424810434813585	unknown	—	—	—
└ 72.3.145.112/28	16	RSPC-60690-1109047746	unknown	—	—	—
└ 72.3.145.128/28	16	RACKS-8-6528656401514185734001684909	unknown	—	—	—
└ 72.3.145.152/29	8	RSPC-60789-1109154143	unknown	—	—	—
└ 72.3.145.168/29	8	RSPC-110301-1172085330	unknown	—	—	—
└ 72.3.145.184/29	8	RACKS-8-1415374336431049	unknown	—	—	—
└ 72.3.145.192/31	2	RSPC-1233938771537301	unknown	—	—	—
└ 72.3.145.194/31	2	RACKS-8-1360592241542272	unknown	—	—	—
└ 72.3.145.200/30	4	RACKS-8-1311126210024656	unknown	—	—	—
└ 72.3.145.212/31	2	RSPC-08913053-D821-4580-BB23-1CE83E9D43AA	unknown	—	—	—
└ 72.3.145.226/31	2	RACKS-8-1360592242971141	unknown	—	—	—
└ 72.3.145.252/30	4	RACKS-8-1360592242192738	unknown	—	—	—
└ 72.3.146.0/29	8	RSPC-0266C1D5-4B9C-4489-BEE0-CC8F9B555AB0	unknown	—	—	—
└ 72.3.146.16/29	8	RACKS-8-1436377939965149	unknown	—	—	—
└ 72.3.146.48/29	8	RSPC-0ACD533E-14C5-4F42-B2BE-6B66A8A9894C	unknown	—	—	—
└ 72.3.146.56/29	8	RACKS-8-1433886377266122	unknown	—	—	—
└ 72.3.146.64/28	16	RSPC-59656-1107026345	unknown	—	—	—
└ 72.3.146.80/29	8	RACKS-8-1436391506612215	unknown	—	—	—
└ 72.3.146.104/29	8	RSPC-60346-1108294913	unknown	—	—	—
└ 72.3.146.112/28	16	RACKS-8-682817426016846823401056-10406	unknown	—	—	—
└ 72.3.146.136/29	8	RACKS-8-1436470578275897	unknown	—	—	—
└ 72.3.146.144/29	8	RSPC-60225-1108127525	unknown	—	—	—
└ 72.3.146.192/29	8	RACKS-8-1360592242969245	unknown	—	—	—
└ 72.3.146.206/31	2	RACKS-8-1308750851946235	unknown	—	—	—
└ 72.3.146.208/30	4	RACKS-8-1360592529534974	unknown	—	—	—
└ 72.3.146.232/29	8	RACKS-8-9706485886247867045024530790-405645	unknown	—	—	—
└ 72.3.146.240/28	16	RACKS-8-6709488506405547085745-045645	unknown	—	—	—
└ 72.3.147.56/29	8	RACKS-8-1401371655752889	unknown	—	—	—
└ 72.3.147.64/28	16	RSPC-59804-1107402729	unknown	—	—	—
└ 72.3.147.88/29	8	RACKS-8-1377022226549760	unknown	—	—	—
└ 72.3.147.128/29	8	RSPC-59958-1107523969	unknown	—	—	—
└ 72.3.147.136/29	8	RACKS-8-1464915258138732	unknown	—	—	—
└ 72.3.147.152/29	8	RSPC-0AC9D8F9-BA6F-461A-A6CF-2920247E3C34	unknown	—	—	—
└ 72.3.147.168/29	8	RSPC-60069-1107905071	unknown	—	—	—
└ 72.3.147.204/31	2	RACKS-8-1308761051991946	unknown	—	—	—
└ 72.3.147.216/30	4	RACKS-8-1365621256630707	unknown	—	—	—
└ 72.3.147.220/30	4	RACKS-8-1360592529914501	unknown	—	—	—
└ 72.3.147.224/31	2	RACKS-8-1312905374726409	unknown	—	—	—
└ 72.3.147.234/31	2	RACKS-8-1424425233880578	unknown	—	—	—
└ 72.3.147.248/30	4	RACKS-8-1379096295565486	unknown	—	—	—
└ 72.3.147.252/31	2	RACKS-8-1361823855431173	unknown	—	—	—
└ 72.3.148.0/29	8	RACKS-8-1447081699499176	unknown	—	—	—
└ 72.3.148.40/29	8	RACKS-8-1352147054669806	unknown	—	—	—
└ 72.3.148.48/28	16	RACKS-8-6528656401514185734001684909	unknown	—	—	—
└ 72.3.148.112/29	8	RACKS-8-7028564786478064583185968-8584624854	unknown	—	—	—
└ 72.3.148.176/29	8	RACKS-8-1423678457550289	unknown	—	—	—
└ 72.3.148.200/30	4	RSPC-2402432A-A783-4FDD-B314-79CA4F34E407	unknown	—	—	—
└ 72.3.148.210/31	2	RACKS-8-1312924334426488	unknown	—	—	—
└ 72.3.148.244/30	4	RACKS-8-1415921538234437	unknown	—	—	—
└ 72.3.149.16/29	8	RSPC-58527-1105797197	unknown	—	—	—
└ 72.3.149.24/29	8	RSPC-59104-1106062424	unknown	—	—	—
└ 72.3.149.32/29	8	RSPC-57501-1106069122	unknown	—	—	—
└ 72.3.149.48/28	16	RACKS-8-164064068406315386071038716-03684035	unknown	—	—	—
└ 72.3.149.64/29	8	RSPC-58501-1106185189	unknown	—	—	—
└ 72.3.149.128/29	8	RSPC-59156-1106255004	unknown	—	—	—
└ 72.3.149.144/29	8	RSPC-59239-1106285639	unknown	—	—	—
└ 72.3.149.152/29	8	RACKS-8-1445613499975726	unknown	—	—	—
└ 72.3.149.160/29	8	RACKS-8-1458828979872806	unknown	—	—	—
└ 72.3.149.168/29	8	RACKS-8-1462461495005094	unknown	—	—	—
└ 72.3.149.192/31	2	RACKS-8-1361970495144508	unknown	—	—	—
└ 72.3.149.196/30	4	RACKS-8-1360592243953760	unknown	—	—	—
└ 72.3.149.212/30	4	RACKS-8-1360592548477291	unknown	—	—	—
└ 72.3.149.216/31	2	RSPC-85194739-3CB3-4FEF-A76F-DEC537D59A84	unknown	—	—	—
└ 72.3.149.220/31	2	RACKS-8-1360592243618506	unknown	—	—	—
└ 72.3.149.242/31	2	RACKS-8-1439237307537105	unknown	—	—	—
└ 72.3.149.244/31	2	RACKS-8-1329314416023413	unknown	—	—	—
└ 72.3.150.0/24	256	RSPC-59013-1105718206	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