Data as of Nov 8, 2026
72.250.203.0/24
No anonymizer space · no proxy exits in 30 daysCyrusOne LLC
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. | 1,536 | CYRUSONE-NET1 | CyrusOne LLC (CL-260) · US | Direct Allocation | Sep 19, 2006 | abuse@ |
| └ 72.250.203.0/27 | 32 | NET-72-250-203-0-1 | unknown | — | — | — |
| └ 72.250.203.32/28 | 16 | NET-72-250-203-32-1 | unknown | — | — | — |
| └ 72.250.203.48/29 | 8 | NET-72-250-203-48-1 | unknown | — | — | — |
| └ 72.250.203.56/29 | 8 | NET-72-250-203-56-1 | unknown | — | — | — |
| └ 72.250.203.72/30 | 4 | CYRUSONE--C0000101-72-250-203-72-30 | unknown | — | — | — |
| └ 72.250.203.80/30 | 4 | CYRUSONE--C0001265-72-250-203-80-30 | unknown | — | — | — |
| └ 72.250.203.84/30 | 4 | CYRUSONE--C0001265-72-250-203-84-30 | unknown | — | — | — |
| └ 72.250.203.88/30 | 4 | CYRUSONE--C0001285-72-250-203-88-30 | unknown | — | — | — |
| └ 72.250.203.92/30 | 4 | CYRUSONE--C0000309-72-250-203-92-30 | unknown | — | — | — |
| └ 72.250.203.112/30 | 4 | CYRUSONE--72-250-203-112-30 | unknown | — | — | — |
| └ 72.250.203.116/30 | 4 | CYRUSONE--72-250-203-116-30 | unknown | — | — | — |
| └ 72.250.203.128/25 | 128 | NET-72-250-203-128-1 | unknown | — | — | — |
Network & registry
Origin network
AS62
US
- Name
- CyrusOne LLC
- Type
- Hosting
- Registered
- Sep 28, 2012
- Domain
- cyrusone.com
- Website
- www.cyrusone.com
- Spamhaus ASN-DROP
- not listed
Routing timeline
Who has announced this prefix
Summary
Routing history
- Pattern
- Stable
- First seen
- Jun 2008
- Current origin since
- May 2017 · 9.5 yr
- Origin networks
- 2
- Last change of origin
- May 2017
Recorded history
History
- Handoffs
- 1
Whois
Registration for this announcement
- Range
- 72.
250. 202. 0 - 72. 250. 207. 255 - Netname
- CYRUSONE-NET1
- Registrant
- CyrusOne LLC
- Organization
- CyrusOne LLC (CL-260)
- Org address
- 1649 Frankford Rd. West, Carrollton, TX, 75007
- Org country
- US
- Type
- Direct Allocation
- Handle
- NET-72-250-202-0-2
- Parent
- NET-72-0-0-0-0
- Created
- Sep 19, 2006
- RIR
- ARIN
- Country
- US
- Delegated
- Sep 19, 2006
- Status
- assigned
Report abuse
Abuse contact
- abuse@
cyrusone. com - Name
- CyrusOne Abuse POC
- Phone
- +1-866-297-8766;ext2
- Handle
- APC22-ARIN