Data as of Nov 7, 2026
138.81.0.0/18
No anonymizer space · no proxy exits in 30 daysSwisscom (Schweiz) AG · space held by Organisation Internationale de Normalisation (ISO)
Network & registry
Origin network
AS3303
CH
- Name
- Swisscom (Schweiz) AG
- Type
- Internet provider
- Registered
- Oct 28, 1994
- Domain
- swisscom.ch
- Website
- www.swisscom.com
- Industry
- Internet Service Provider (ISP)
- Spamhaus ASN-DROP
- not listed
Routing timeline
Who has announced this prefix
Summary
Routing history
- Pattern
- Stable
- First seen
- Jun 2025
- Current origin since
- Jun 2025 · 1.4 yr
- Origin networks
- 1
IRR
Route objects on the exact prefix
| Origin | Registry | Description | Maintainer | Modified |
|---|---|---|---|---|
| AS3303 | RIPE | CH-UNISOURCE-MNT ERX-NET-138-81-2024-MNT ISO-MNT | Feb 19, 2026 |
Whois
Registration for this announcement
- Range
- 138.
81. 0. 0 - 138. 81. 191. 255 - Netname
- ISO-CS
- Registrant
- Organisation Internationale de Normalisation (ISO)
- Registrant country
- CH
- Organization
- Organisation Internationale de Normalisation (ISO) (ORG-ISO9-RIPE)
- Org country
- CH
- Type
- LEGACY
- Created
- Mar 10, 2026
- Updated
- May 22, 2026
- Maintainer
- RIPE-NCC-LEGACY-MNT
- RIR
- RIPE NCC
- Country
- CH
- Delegated
- Mar 9, 1990
- Status
- assigned
Report abuse
Abuse contact
- security@
iso. org - Name
- Abuse contact role object
- Handle
- ACRO64648-RIPE