Data as of Nov 7, 2026
216.117.31.0/24
No anonymizer space · no proxy exits in 30 daysAS36328 · space held by CyrusOne 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 |
|---|---|---|---|---|---|---|
| 216. | 1,280 | GRAMTEL004 | CyrusOne LLC (CL-260) · US | Direct Allocation | Feb 23, 2000 | abuse@ |
| └ 216.117.31.0/24 | 256 | CYRUSONE-CALTECH-LAN-BLK | Caltech (C05931678) · US | Reassigned | Oct 7, 2015 | abuse@ via GRAMTEL004 |
A contact marked “via” is the registry's: the record names none of its own, so the registry hands down its parent's.
Network & registry
Registry
Holder
- Organization
- CyrusOne LLC
- Handle
- CL-260
- Range
- 216.
117. 28. 0 - 216. 117. 32. 255 - Registration type
- Direct Allocation
- Record created
- Feb 23, 2000
Origin network
AS36328
ZZ
- Type
- Business
- Registered
- Nov 6, 2026
- Domain
- caltech.bank
- Industry
- Software Development
- Spamhaus ASN-DROP
- not listed
Routing timeline
Who has announced this prefix
Summary
Routing history
- Pattern
- Stable
- First seen
- Nov 2015
- Current origin since
- Feb 2018 · 8.8 yr
- Origin networks
- 3
- Last change of origin
- Feb 2018
Recorded history
History
- Handoffs
- 3
Whois
Registration for this announcement
- Range
- 216.
117. 31. 0/ 24 - Netname
- CYRUSONE-CALTECH-LAN-BLK
- Registrant
- Caltech
- Organization
- Caltech (C05931678)
- Type
- Reassigned
- Handle
- NET-216-117-31-0-1
- Parent
- NET-216-117-28-0-2
- Created
- Oct 7, 2015
- RIR
- ARIN
- Country
- US
- Delegated
- Feb 23, 2000
- Status
- assigned
Report abuse
Abuse contact
- abuse@
cyrusone. com - Name
- CyrusOne Abuse POC
- Phone
- +1-866-297-8766;ext2
- Handle
- APC22-ARIN