Data as of Nov 8, 2026
209.242.128.0/24
No anonymizer space · no proxy exits in 30 daysCox Communications Inc.
Announcements
Less specific
Covering announcements
| Prefix | Origin | Type | Proxy exits | Holder | RPKI |
|---|---|---|---|---|---|
| 209.242.128.0/19 since Aug 2005 | AS22773 | Residential | 19 1 always on | Cox Communications Inc. |
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 |
|---|---|---|---|---|---|---|
| 209. | 12,288 | COX-SD | Cox Communications Inc. (CXA) · US | Direct Allocation | Jun 24, 1998 | abuse@ |
| └ 209.242.128.0/24 | 256 | COXSD-01 | Cox Communications (COXCOM-6) · US | Reassigned | Sep 28, 2000 | abuse@ |
Network & registry
IPv4 market
Holder
- Organization
- Cox Communications Inc.
- Handle
- CXA
- Range
- 209.
242. 128. 0 - 209. 242. 175. 255 - Registration type
- Direct Allocation
- Record created
- Jun 24, 1998
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
Summary
Routing history
- Pattern
- Stable
- First seen
- May 2014
- Current origin since
- May 2014 · 13 yr
- Origin networks
- 1
RPKI
Route origin authorizations
| ROA prefix | ASN | Max len | Anchor | Verdict |
|---|---|---|---|---|
| 209.242.128.0/24 | AS22773 | /24 | ARIN | RPKI valid |
| 209.242.128.0/19 | AS22773 | /19 | ARIN | Too specific |
IRR
Route objects on the exact prefix
| Origin | Registry | Description | Maintainer | Modified |
|---|---|---|---|---|
| AS22773 | RADB | Cox Aggregate Data-Business | MAINT-AS22773 | Nov 13, 2023 |
Whois
Registration for this announcement
- Range
- 209.
242. 128. 0/ 24 - Netname
- COXSD-01
- Registrant
- Cox Communications
- Organization
- Cox Communications (COXCOM-6)
- Org address
- 5159 Federal Blvd., San Diego, CA, 92105
- Org country
- US
- Type
- Reassigned
- Handle
- NET-209-242-128-0-2
- Parent
- NET-209-242-128-0-1
- Created
- Sep 28, 2000
- RIR
- ARIN
- Country
- US
- Delegated
- Jun 24, 1998
- Status
- assigned
Report abuse
Abuse contact
- abuse@
cox. com - Name
- Cox Communications Inc
- Phone
- +1-866-272-5111
- Handle
- IC146-ARIN