Data as of Nov 10, 2026

166.78.192.0/18

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
166.78.0.0/16	65,536	RACKS-8-NET-11	Rackspace Hosting (RACKS-8) · US	Direct Allocation	Oct 17, 2012	abuse@rackspace.com
└ 166.78.205.144/29	8	RACKS-8-1360038027438484	unknown	—	—	—
└ 166.78.205.152/29	8	RACKS-8-1360041025355679	unknown	—	—	—
└ 166.78.205.232/29	8	RACKS-8-1360178773013902	unknown	—	—	—
└ 166.78.206.0/30	4	INTERNAL-CUSTOMER-01	unknown	—	—	—
└ 166.78.206.32/30	4	RACKS-8-1359136694399313	unknown	—	—	—
└ 166.78.206.36/30	4	RACKS-8-1359136695680861	unknown	—	—	—
└ 166.78.206.44/30	4	RACKS-8-1359154224188816	unknown	—	—	—
└ 166.78.206.60/30	4	RACKS-8-1435748669912437	unknown	—	—	—
└ 166.78.206.72/30	4	RACKS-8-1359403334992689	unknown	—	—	—
└ 166.78.206.92/30	4	RACKS-8-1359439335740677	unknown	—	—	—
└ 166.78.206.108/30	4	RACKS-8-1456174938222333	unknown	—	—	—
└ 166.78.206.112/30	4	RACKS-8-1456176256852376	unknown	—	—	—
└ 166.78.206.116/30	4	RACKS-8-1430801898369516	unknown	—	—	—
└ 166.78.206.124/30	4	RSPC-74D9EC4A-EBA7-409E-97E8-C25D11F1A41B	unknown	—	—	—
└ 166.78.206.160/30	4	RACKS-8-1359572175829226	unknown	—	—	—
└ 166.78.206.164/30	4	RACKS-8-1359572176103533	unknown	—	—	—
└ 166.78.206.168/30	4	RACKS-8-1359572294933670	unknown	—	—	—
└ 166.78.206.200/30	4	RACKS-8-1359588494664829	unknown	—	—	—
└ 166.78.206.204/30	4	RACKS-8-1406403495060774	unknown	—	—	—
└ 166.78.206.216/30	4	RACKS-8-1359599894028783	unknown	—	—	—
└ 166.78.206.228/30	4	RACKS-8-1359641775259857	unknown	—	—	—
└ 166.78.207.0/31	2	RACKS-8-1359669974000608	unknown	—	—	—
└ 166.78.207.4/31	2	RSPC-0EF9FBE6-97BC-46C0-B780-408C26249B05	unknown	—	—	—
└ 166.78.207.10/31	2	RSPC-027E7A50-1645-4F32-99FA-53B42B3C5BC4	unknown	—	—	—
└ 166.78.207.14/31	2	RACKS-8-1359735495585854	unknown	—	—	—
└ 166.78.207.24/31	2	RSPC-2334349C-6FBD-4BAD-8D07-3522E304B502	unknown	—	—	—
└ 166.78.207.32/31	2	RACKS-8-1360010053575541	unknown	—	—	—
└ 166.78.207.34/31	2	RACKS-8-1360017253009661	unknown	—	—	—
└ 166.78.207.36/31	2	RACKS-8-1360023373483297	unknown	—	—	—
└ 166.78.207.44/31	2	RSPC-CE417F55-02DC-4E4E-AC39-E47794F82979	unknown	—	—	—
└ 166.78.207.46/31	2	RACKS-8-1378349894273124	unknown	—	—	—
└ 166.78.207.52/31	2	RACKS-8-1363885834714547	unknown	—	—	—
└ 166.78.207.54/31	2	RACKS-8-1360619294155002	unknown	—	—	—
└ 166.78.207.58/31	2	RACKS-8-1360632495385722	unknown	—	—	—
└ 166.78.207.60/31	2	RACKS-8-1431789738353527	unknown	—	—	—
└ 166.78.207.62/31	2	RACKS-8-1424212095976797	unknown	—	—	—
└ 166.78.207.70/31	2	RACKS-8-1396552695756101	unknown	—	—	—
└ 166.78.207.82/31	2	RACKS-8-1409682258471166	unknown	—	—	—
└ 166.78.207.86/31	2	RACKS-8-1409682276053548	unknown	—	—	—
└ 166.78.207.90/31	2	RSPC-05CBEEEF-A629-4D52-B17D-2AEE5FAAC87A	unknown	—	—	—
└ 166.78.207.92/31	2	RACKS-8-1381181295193238	unknown	—	—	—
└ 166.78.207.100/31	2	RSPC-02E10A54-F688-4EA0-A8C9-3E0CF9860EBF	unknown	—	—	—
└ 166.78.207.102/31	2	RACKS-8-1361210655152249	unknown	—	—	—
└ 166.78.207.120/31	2	RACKS-8-1361821935086071	unknown	—	—	—
└ 166.78.207.128/31	2	RACKS-8-1424283856769868	unknown	—	—	—
└ 166.78.207.130/31	2	RACKS-8-1361824816475197	unknown	—	—	—
└ 166.78.207.158/31	2	RACKS-8-1363327695333335	unknown	—	—	—
└ 166.78.207.168/31	2	RACKS-8-1363658655907633	unknown	—	—	—
└ 166.78.207.180/31	2	RACKS-8-1457136498926118	unknown	—	—	—
└ 166.78.207.182/31	2	RACKS-8-1363804094122254	unknown	—	—	—
└ 166.78.207.184/31	2	RACKS-8-1363805894070941	unknown	—	—	—
└ 166.78.207.186/31	2	RACKS-8-1363981936449585	unknown	—	—	—
└ 166.78.207.202/31	2	RACKS-8-1424730032599087	unknown	—	—	—
└ 166.78.207.206/31	2	RACKS-8-1364323454545368	unknown	—	—	—
└ 166.78.207.212/31	2	RACKS-8-1364344336986841	unknown	—	—	—
└ 166.78.207.214/31	2	RACKS-8-1364351295665868	unknown	—	—	—
└ 166.78.207.218/31	2	RACKS-8-1405611857968957	unknown	—	—	—
└ 166.78.207.220/31	2	RACKS-8-1405616056921170	unknown	—	—	—
└ 166.78.207.224/31	2	RACKS-8-1364395823193738	unknown	—	—	—
└ 166.78.207.228/31	2	RACKS-8-1364396895601481	unknown	—	—	—
└ 166.78.207.230/31	2	INTERNAL-CUSTOMER-01	unknown	—	—	—
└ 166.78.207.242/31	2	RACKS-8-1364440933947794	unknown	—	—	—
└ 166.78.208.0/24	256	RACKS-8-1359409453944379	unknown	—	—	—
└ 166.78.209.0/24	256	RACKS-8-1359460824263124	unknown	—	—	—
└ 166.78.210.64/26	64	RACKS-8-1361102894650873	unknown	—	—	—
└ 166.78.210.128/28	16	RACKS-8-1364408534101416	unknown	—	—	—
└ 166.78.210.208/28	16	RACKS-8-1364431095580840	unknown	—	—	—
└ 166.78.211.0/30	4	RACKS-8-1369943425481658	unknown	—	—	—
└ 166.78.211.4/30	4	RACKS-8-1369943893734929	unknown	—	—	—
└ 166.78.211.8/30	4	RSPC-6221F2AF-30A0-4758-8BDD-D2EDCECA52A4	unknown	—	—	—
└ 166.78.211.12/30	4	RACKS-8-1369981224123511	unknown	—	—	—
└ 166.78.211.24/30	4	RACKS-8-1370677823031292	unknown	—	—	—
└ 166.78.211.40/30	4	RSPC-F6DC9D22-4D9F-41B0-9F4F-145CED090E46	unknown	—	—	—
└ 166.78.211.48/30	4	RACKS-8-1370825773183900	unknown	—	—	—
└ 166.78.211.56/30	4	RSPC-0028E5E6-5633-4818-8002-A2D7D0A7B6BD	unknown	—	—	—
└ 166.78.211.60/30	4	RACKS-8-1370882294584103	unknown	—	—	—
└ 166.78.211.64/30	4	RACKS-8-1370883734793395	unknown	—	—	—
└ 166.78.211.92/30	4	RACKS-8-1370982853701703	unknown	—	—	—
└ 166.78.211.108/30	4	RACKS-8-1464035899406876	unknown	—	—	—
└ 166.78.211.112/30	4	RACKS-8-1371009025192348	unknown	—	—	—
└ 166.78.211.160/27	32	RACKS-8-1432324236228838	unknown	—	—	—
└ 166.78.211.192/27	32	RACKS-8-1432323980506796	unknown	—	—	—
└ 166.78.214.8/29	8	RACKS-8-1361302825346444	unknown	—	—	—
└ 166.78.214.32/29	8	INTERNAL-CUSTOMER-01	unknown	—	—	—
└ 166.78.214.40/29	8	RACKS-8-1361369655450721	unknown	—	—	—
└ 166.78.214.56/29	8	RACKS-8-1361396775079689	unknown	—	—	—
└ 166.78.214.64/29	8	RACKS-8-1361396775910352	unknown	—	—	—
└ 166.78.214.80/29	8	RACKS-8-1456521379938325	unknown	—	—	—
└ 166.78.214.88/29	8	RACKS-8-1361465055986705	unknown	—	—	—
└ 166.78.214.128/29	8	RACKS-8-1361570894870222	unknown	—	—	—
└ 166.78.214.136/29	8	RACKS-8-1361576777768430	unknown	—	—	—
└ 166.78.214.152/29	8	RACKS-8-1361672534737580	unknown	—	—	—
└ 166.78.214.192/29	8	RACKS-8-1361912654697288	unknown	—	—	—
└ 166.78.214.208/29	8	RACKS-8-1361924896729947	unknown	—	—	—
└ 166.78.214.216/29	8	RACKS-8-1361930296662784	unknown	—	—	—
└ 166.78.214.240/29	8	RACKS-8-1361974230148011	unknown	—	—	—
└ 166.78.215.8/30	4	RACKS-8-1420742175160229	unknown	—	—	—
└ 166.78.215.16/30	4	RSPC-F8ED7655-F321-45DD-B4FE-C0600CB43921	unknown	—	—	—
└ 166.78.215.40/30	4	RSPC-A615DB67-BD69-4B71-93A2-C70FD21B3533	unknown	—	—	—
└ 166.78.215.48/30	4	RSPC-D692E294-BBAD-4356-8DD2-EE496A945C58	unknown	—	—	—
└ 166.78.215.52/30	4	RACKS-8-1361393535773750	unknown	—	—	—
└ 166.78.215.56/30	4	RACKS-8-1361396895935693	unknown	—	—	—
└ 166.78.215.92/30	4	RACKS-8-1462461502855649	unknown	—	—	—
└ 166.78.215.96/30	4	RACKS-8-1361500825583818	unknown	—	—	—
└ 166.78.215.108/30	4	RACKS-8-1361607134253393	unknown	—	—	—
└ 166.78.215.124/30	4	RACKS-8-1361655134789098	unknown	—	—	—
└ 166.78.215.128/29	8	RACKS-8-1389270495402930	unknown	—	—	—
└ 166.78.215.136/29	8	RACKS-8-1361991254044283	unknown	—	—	—
└ 166.78.215.160/29	8	RSPC-C7923945-C725-4B94-8FD5-7A10659CD959	unknown	—	—	—
└ 166.78.215.168/29	8	RACKS-8-1409682268739252	unknown	—	—	—
└ 166.78.215.184/29	8	RACKS-8-1362060254782129	unknown	—	—	—
└ 166.78.215.200/29	8	RSPC-3B155E95-F7D1-4B3A-8D8E-C2BB11617BBA	unknown	—	—	—
└ 166.78.215.208/29	8	RACKS-8-1362089295304255	unknown	—	—	—
└ 166.78.215.216/29	8	RACKS-8-1362092417095946	unknown	—	—	—
└ 166.78.215.224/29	8	RACKS-8-1374246374658359	unknown	—	—	—
└ 166.78.215.248/29	8	RACKS-8-1362144037504454	unknown	—	—	—
└ 166.78.216.8/29	8	RSPC-38345AD8-4640-459D-A240-297EE6FD493D	unknown	—	—	—
└ 166.78.216.24/29	8	RSPC-7AE845A5-79C8-4774-BF84-B1958741CDB4	unknown	—	—	—
└ 166.78.216.32/29	8	RACKS-8-1362540255836078	unknown	—	—	—
└ 166.78.216.56/29	8	RACKS-8-1362597975976561	unknown	—	—	—
└ 166.78.216.88/29	8	RACKS-8-1362621375663072	unknown	—	—	—
└ 166.78.216.96/29	8	RACKS-8-1362625229628812	unknown	—	—	—
└ 166.78.216.104/29	8	RACKS-8-1362625694437143	unknown	—	—	—
└ 166.78.216.112/29	8	RACKS-8-1362667829454857	unknown	—	—	—
└ 166.78.216.128/29	8	RACKS-8-1421786057963056	unknown	—	—	—
└ 166.78.216.136/29	8	RACKS-8-1362711734797578	unknown	—	—	—
└ 166.78.216.144/29	8	RACKS-8-1362725893080316	unknown	—	—	—
└ 166.78.216.152/29	8	RSPC-0523F3FF-CB9A-42C3-81D7-2969E33D2FE5	unknown	—	—	—
└ 166.78.216.168/29	8	RACKS-8-1362789043848458	unknown	—	—	—
└ 166.78.216.176/29	8	RACKS-8-1362789044960116	unknown	—	—	—
└ 166.78.216.184/29	8	RACKS-8-1362791655324798	unknown	—	—	—
└ 166.78.216.240/29	8	RACKS-8-1363016655543394	unknown	—	—	—
└ 166.78.217.0/29	8	RACKS-8-1363031296431800	unknown	—	—	—
└ 166.78.217.24/29	8	RACKS-8-1363036096646423	unknown	—	—	—
└ 166.78.217.32/29	8	RACKS-8-1363036935355417	unknown	—	—	—
└ 166.78.217.72/29	8	RACKS-8-1363195698837300	unknown	—	—	—
└ 166.78.217.88/29	8	RACKS-8-1384466654151093	unknown	—	—	—
└ 166.78.217.104/29	8	RACKS-8-1363220295273092	unknown	—	—	—
└ 166.78.217.128/29	8	RACKS-8-1363298896812852	unknown	—	—	—
└ 166.78.217.160/29	8	RSPC-DA5C3829-0B8F-4344-B4D1-8CF168731E45	unknown	—	—	—
└ 166.78.217.168/29	8	RSPC-D9DEF5E4-8368-41E0-97C0-638B6E592730	unknown	—	—	—
└ 166.78.217.176/29	8	RACKS-8-1363347495148515	unknown	—	—	—
└ 166.78.217.184/29	8	RACKS-8-1363361055130042	unknown	—	—	—
└ 166.78.217.192/29	8	RACKS-8-1363395495015134	unknown	—	—	—
└ 166.78.217.208/29	8	RACKS-8-1363619055208932	unknown	—	—	—
└ 166.78.217.216/29	8	RACKS-8-1363634055672496	unknown	—	—	—
└ 166.78.217.232/29	8	RACKS-8-1363638975080559	unknown	—	—	—
└ 166.78.217.240/29	8	RACKS-8-1363640175341750	unknown	—	—	—
└ 166.78.217.248/29	8	RACKS-8-1363640294245005	unknown	—	—	—
└ 166.78.218.0/29	8	RACKS-8-1363640426292058	unknown	—	—	—
└ 166.78.218.8/29	8	RACKS-8-1433956458547131	unknown	—	—	—
└ 166.78.218.16/29	8	RACKS-8-1389329176793124	unknown	—	—	—
└ 166.78.218.40/29	8	RACKS-8-1363707496092241	unknown	—	—	—
└ 166.78.218.56/29	8	RSPC-16528CEA-9341-41F7-928C-23B11BB2CAB3	unknown	—	—	—
└ 166.78.218.88/29	8	RACKS-8-1363803854427100	unknown	—	—	—
└ 166.78.218.96/29	8	RACKS-8-1363807455280707	unknown	—	—	—
└ 166.78.218.104/29	8	RSPC-30F3298C-BF0F-47CF-BAA0-4C71DD361267	unknown	—	—	—
└ 166.78.218.136/29	8	RACKS-8-1363851256424705	unknown	—	—	—
└ 166.78.218.152/29	8	RACKS-8-1363873233675934	unknown	—	—	—
└ 166.78.218.168/29	8	RACKS-8-1363875254274652	unknown	—	—	—
└ 166.78.218.184/29	8	RSPC-08AD52A4-17A4-4820-B619-15F917429B6A	unknown	—	—	—
└ 166.78.218.192/29	8	RACKS-8-1363893374943346	unknown	—	—	—
└ 166.78.218.224/29	8	RACKS-8-1363896735273356	unknown	—	—	—
└ 166.78.218.248/29	8	RACKS-8-1362519624327730	unknown	—	—	—
└ 166.78.219.16/30	4	RACKS-8-1362540495367856	unknown	—	—	—
└ 166.78.219.40/30	4	RACKS-8-1362599427673105	unknown	—	—	—
└ 166.78.219.52/30	4	RACKS-8-1381196895795658	unknown	—	—	—
└ 166.78.219.64/30	4	RACKS-8-1362629298086492	unknown	—	—	—
└ 166.78.219.84/30	4	RACKS-8-1362692430555623	unknown	—	—	—
└ 166.78.219.108/30	4	RACKS-8-1362704775696999	unknown	—	—	—
└ 166.78.219.112/30	4	RACKS-8-1362704775237372	unknown	—	—	—
└ 166.78.219.120/30	4	RACKS-8-1362729735737529	unknown	—	—	—
└ 166.78.219.124/30	4	RACKS-8-1362729855470261	unknown	—	—	—
└ 166.78.219.128/30	4	RACKS-8-1362736574586974	unknown	—	—	—
└ 166.78.219.152/30	4	RACKS-8-1362777855965265	unknown	—	—	—
└ 166.78.219.160/30	4	RACKS-8-1362929297648174	unknown	—	—	—
└ 166.78.219.172/30	4	RACKS-8-1362948134419317	unknown	—	—	—
└ 166.78.219.176/30	4	RACKS-8-1362949829001327	unknown	—	—	—
└ 166.78.219.180/30	4	RACKS-8-1362957495491024	unknown	—	—	—
└ 166.78.219.184/30	4	RACKS-8-1362957622389743	unknown	—	—	—
└ 166.78.219.192/30	4	RACKS-8-1362959775124745	unknown	—	—	—
└ 166.78.219.204/30	4	RACKS-8-1363005735894717	unknown	—	—	—
└ 166.78.219.208/30	4	RSPC-325B3B6D-AA24-44DE-A4AF-97FBE549597A	unknown	—	—	—
└ 166.78.219.220/30	4	RACKS-8-1420760176465282	unknown	—	—	—
└ 166.78.219.224/30	4	RACKS-8-1363036829599042	unknown	—	—	—
└ 166.78.219.228/30	4	RACKS-8-1363042833728238	unknown	—	—	—
└ 166.78.219.244/30	4	RACKS-8-1363082057754040	unknown	—	—	—
└ 166.78.220.0/26	64	RACKS-8-1363084578201931	unknown	—	—	—
└ 166.78.220.128/25	128	RACKS-8-1366132934878069	unknown	—	—	—
└ 166.78.221.0/27	32	RACKS-8-1369847053718964	unknown	—	—	—
└ 166.78.221.32/27	32	RACKS-8-1363121175502757	unknown	—	—	—
└ 166.78.221.128/27	32	RACKS-8-1363215375329535	unknown	—	—	—
└ 166.78.221.192/27	32	RACKS-8-1363690695745113	unknown	—	—	—
└ 166.78.221.224/27	32	RACKS-8-1365000855772610	unknown	—	—	—
└ 166.78.222.0/26	64	RACKS-8-1363313536496435	unknown	—	—	—
└ 166.78.222.64/26	64	RACKS-8-1363690096296913	unknown	—	—	—
└ 166.78.222.128/25	128	RACKS-8-1366125254531554	unknown	—	—	—
└ 166.78.223.4/30	4	RSPC-9DA628FA-6E57-4409-BE5A-CFB25C2A8CC6	unknown	—	—	—
└ 166.78.223.12/30	4	RSPC-02AA6AD5-C2CB-4BA3-ADBB-BEFB7A59E706	unknown	—	—	—
└ 166.78.223.40/30	4	RSPC-D8F2A996-B2F3-42E0-B1C9-8E79BEE4752C	unknown	—	—	—

← Previous201–400 of 667 · page 2 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

166.78.192.0/18

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