Data as of Nov 3, 2026
204.13.138.0/24
No anonymizer space · no proxy exits in 30 daysF5 Networks SARL · space held by Kroll Factual Data
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 |
|---|---|---|---|---|---|---|
| 204.13.136.0/22 | 1,024 | CBC-COMPANIES | Kroll Factual Data (KFD-2) · US | Direct Allocation | Apr 19, 2005 | [email protected] |
| └ 204.13.138.0/24 | 256 | CBC-F5XC | unknown | Reassigned | Oct 3, 2024 | [email protected] via CBC-COMPANIES |
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
- Kroll Factual Data
- Handle
- KFD-2
- Range
- 204.13.136.0/22
- Registration type
- Direct Allocation
- Record created
- Apr 19, 2005
Origin network
AS35280
FR
- Name
- F5 Networks SARL
- Type
- Business
- Registered
- Apr 1, 2015
- Domain
- f5.com
- Website
- www.f5.com
- Industry
- Computer and Information Technology
- Spamhaus ASN-DROP
- not listed
Routing timeline
Who has announced this prefix
Summary
Routing history
- Pattern
- Reactivated
- First seen
- Aug 2014
- Current origin since
- Oct 2024 · 2.1 yr
- Origin networks
- 2
- Last change of origin
- Oct 2024
Recorded history
History
- Handoffs
- 1
RPKI
Route origin authorizations
| ROA prefix | ASN | Max len | Anchor | Verdict |
|---|---|---|---|---|
| 204.13.138.0/24 | AS26777 | /24 | ARIN | Another network |
| 204.13.138.0/24 | AS35280 | /24 | ARIN | RPKI valid |
| 204.13.136.0/22 | AS7018 | /22 | ARIN | Another network |
| 204.13.136.0/22 | AS19905 | /22 | ARIN | Another network |
| 204.13.136.0/22 | AS26777 | /22 | ARIN | Another network |
| 204.13.136.0/22 | AS35280 | /22 | ARIN | Too specific |
| 204.13.136.0/22 | AS46887 | /22 | ARIN | Another network |
Whois
Registration for this announcement
- Range
- 204.13.138.0/24
- Netname
- CBC-F5XC
- Registrant
- Kroll Factual Data
- Organization
- Kroll Factual Data (KFD-2)
- Org address
- P.O. Box 1838, Columbus, OH, 43231
- Org country
- US
- Type
- Reassigned
- Handle
- NET-204-13-138-0-1
- Parent
- NET-204-13-136-0-1
- Created
- Oct 3, 2024
- RIR
- ARIN
- Country
- US
- Delegated
- Apr 19, 2005
- Status
- assigned
Report abuse
Abuse contact
- [email protected]
- Name
- Network and Security Supervisor
- Phone
- +1-614-915-3986
- Handle
- NSS17-ARIN