Data as of Nov 3, 2026
66.210.56.0/23
No anonymizer space · no proxy exits in 30 daysCox Communications Inc.
Announcements
Less specific
Covering announcements
| Prefix | Origin | Type | Proxy exits | Holder | RPKI |
|---|---|---|---|---|---|
| 66.210.0.0/16 since Aug 2016 | AS22773 | Residential | 143 11 always on | Cox Communications Inc. |
Registrations in this block
The registry's network records over this block, widest first, each under its parent.
| Range | Addresses | Netname | Holder | Type | Created | Abuse contact |
|---|---|---|---|---|---|---|
| 66.210.0.0/16 | 65,536 | COX-NET-2BLK | Cox Communications Inc. (CXA) · US | Direct Allocation | Dec 19, 2001 | [email protected] |
| └ 66.210.56.0/23 | 512 | NETBLK-PH-OHFC-66-210-56-0 | unknown | — | — | — |
Network & registry
Announced by
Covering announcement 66.210.56.0/22
- Prefix
- 66.210.56.0/22
- Announced by
- AS22773 Cox Communications Inc.
- Type
- Residential
- Proxy exits
- 9
- RPKI
- RPKI valid
- Netname
- COX-NET-2BLK
- Registrant
- Cox Communications Inc.
- RIR
- ARIN
Origin network
AS22773
US
- Name
- Cox Communications Inc.
- Type
- Internet provider
- Registered
- Nov 20, 2001
- Domain
- cox.com
- Website
- www.cox.com/peering
- Industry
- Internet Service Provider (ISP)
- Spamhaus ASN-DROP
- not listed
Routing timeline
Covering aggregate above, the prefix's own history below
66.210.56.0/22
Routing history
- Pattern
- Stable
- First seen
- May 2005
- Current origin since
- Sep 2012 · 14 yr
- Origin networks
- 2
- Last change of origin
- Sep 2012
Recorded history
History
- Handoffs
- 1
RPKI
Route origin authorizations
| ROA prefix | ASN | Max len | Anchor | Verdict |
|---|---|---|---|---|
| 66.210.56.0/22 | AS22773 | /22 | ARIN | RPKI valid |
| 66.210.0.0/16 | AS22773 | /16 | ARIN | Too specific |
IRR
Route objects on 66.210.56.0/22
| Origin | Registry | Description | Maintainer | Modified |
|---|---|---|---|---|
| AS22773 | RADB | PH CBS TRANSIT | MAINT-AS22773 | Nov 13, 2023 |
Whois
Registration for this announcement
- Range
- 66.210.0.0/16
- Netname
- COX-NET-2BLK
- Registrant
- Cox Communications Inc.
- Organization
- Cox Communications Inc. (CXA)
- Org address
- 6175 S. Willow Dr, Greenwood Village, CO, 80111
- Org country
- US
- Type
- Direct Allocation
- Handle
- NET-66-210-0-0-1
- Parent
- NET-66-0-0-0-0
- Created
- Dec 19, 2001
- RIR
- ARIN
- Country
- US
- Delegated
- Dec 19, 2001
- Status
- assigned
Report abuse
Abuse contact
- [email protected]
- Name
- Abuse
- Phone
- +1-877-777-2263
- Handle
- ABUSE19-ARIN