Data as of Nov 6, 2026
64.238.159.0/24
No anonymizer space · no proxy exits in 30 daysAssociation for Computing Machinery, Inc · space held by CyrusOne LLC
Announcements
Less specific
Covering announcements
| Prefix | Origin | Type | Holder | RPKI |
|---|---|---|---|---|
| 64.238.144.0/20 since Sep 2019 | AS62 | Hosting | 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 |
|---|---|---|---|---|---|---|
| 64.238.144.0/20 | 4,096 | CERVALIS-1BLK | CyrusOne LLC (CL-260) · US | Direct Allocation | Feb 18, 2010 | abuse@ |
| └ 64.238.159.0/24 | 256 | CYRUSONE-64-238-159-0-24 | Association For Computing Machinery, Inc. (C06974857) · US | Reassigned | May 4, 2018 | abuse@ via CERVALIS-1BLK |
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
- 64.
238. 144. 0/ 20 - Registration type
- Direct Allocation
- Record created
- Feb 18, 2010
Origin network
AS36607
US
- Name
- Association for Computing Machinery, Inc
- Type
- Business
- Registered
- Dec 13, 2017
- Domain
- acm.org
- Industry
- Human Rights and Social Advocacy (Human Rights, Environment and Wildlife Conservation, Other)
- Spamhaus ASN-DROP
- not listed
Routing timeline
Covering aggregate above, the prefix's own history below
Summary
Routing history
- Pattern
- Stable
- First seen
- May 2018
- Current origin since
- May 2018 · 8.5 yr
- Origin networks
- 1
IRR
Route objects on the exact prefix
| Origin | Registry | Description | Maintainer | Modified |
|---|---|---|---|---|
| AS36607 | RADB | CyrusOne-Customer Prefix | MAINT-AS62 | Nov 13, 2023 |
Whois
Registration for this announcement
- Range
- 64.
238. 159. 0/ 24 - Netname
- CYRUSONE-64-238-159-0-24
- Registrant
- Association For Computing Machinery, Inc.
- Organization
- Association For Computing Machinery, Inc. (C06974857)
- Type
- Reassigned
- Handle
- NET-64-238-159-0-1
- Parent
- NET-64-238-144-0-1
- Created
- May 4, 2018
- RIR
- ARIN
- Country
- US
- Delegated
- Feb 18, 2010
- Status
- assigned
Report abuse
Abuse contact
- abuse@
cyrusone. com - Name
- CyrusOne Abuse POC
- Phone
- +1-866-297-8766;ext2
- Handle
- APC22-ARIN