Data as of Nov 3, 2026
72.216.56.0/24
4 residential-proxy exits · 30 daysCox Communications Inc.
Residential-proxy exits
Proxy exits
4
1.6% of its addresses · 30 days
Always-on exits
2
50% of its exits
Providers
2
selling exits here
Oct 4, 2026 – Nov 2, 2026
Exits seen per day
3.2K observations
Proxy providers listing exits
- ColaProxy
- Thordata
Announcements
Less specific
Covering announcements
| Prefix | Origin | Type | Proxy exits | Holder | RPKI |
|---|---|---|---|---|---|
| 72.216.0.0/18 since Aug 2016 | AS22773 | Residential | 104 13 always on | Cox Communications Inc. | |
| 72.192.0.0/11 | AS22773 | Residential | 21,059 4,217 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 |
|---|---|---|---|---|---|---|
| 72.192.0.0/11 | 2,097,152 | NETBLK-COX-ATLANTA-11 | Cox Communications Inc. (CXA) · US | Direct Allocation | Aug 3, 2005 | [email protected] |
| └ 72.216.0.0/18 | 16,384 | NETBLK-AT-RDC-72-216-0-0 | Cox Communications (C01710394) · US | Reassigned | Aug 20, 2007 | [email protected] via NETBLK-COX-ATLANTA-11 |
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
Announced by
Covering announcement 72.216.56.0/23
- Prefix
- 72.216.56.0/23
- Announced by
- AS22773 Cox Communications Inc.
- Type
- Residential
- Proxy exits
- 4
- Always-on exits
- 2
- RPKI
- RPKI valid
- Netname
- NETBLK-AT-RDC-72-216-0-0
- Registrant
- Cox Communications
- RIR
- ARIN
IPv4 market
Holder
- Organization
- Cox Communications Inc.
- Handle
- CXA
- Range
- 72.192.0.0/11
- Registration type
- Direct Allocation
- Record created
- Aug 3, 2005
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
72.216.56.0/23
Routing history
- Pattern
- Stable
- First seen
- Jul 2018
- Current origin since
- Jul 2018 · 8.3 yr
- Origin networks
- 1
RPKI
Route origin authorizations
| ROA prefix | ASN | Max len | Anchor | Verdict |
|---|---|---|---|---|
| 72.216.56.0/23 | AS22773 | /23 | ARIN | RPKI valid |
| 72.216.0.0/18 | AS22773 | /18 | ARIN | Too specific |
| 72.192.0.0/11 | AS22773 | /11 | ARIN | Too specific |
IRR
Route objects on 72.216.56.0/23
| Origin | Registry | Description | Maintainer | Modified |
|---|---|---|---|---|
| AS22773 | RADB | Cox Aggregate Data-Business | MAINT-AS22773 | Nov 13, 2023 |
Whois
Registration for this announcement
- Range
- 72.216.0.0/18
- Netname
- NETBLK-AT-RDC-72-216-0-0
- Registrant
- Cox Communications
- Organization
- Cox Communications (C01710394)
- Type
- Reassigned
- Handle
- NET-72-216-0-0-1
- Parent
- NET-72-192-0-0-1
- Created
- Aug 20, 2007
- RIR
- ARIN
- Country
- US
- Delegated
- Aug 3, 2005
- Status
- assigned
Report abuse
Abuse contact
- [email protected]
- Name
- Abuse
- Phone
- +1-877-777-2263
- Handle
- ABUSE19-ARIN