81.199.72.0/21 - DTAG Deutsche Telekom (AS3320)
CIDR
81.199.72.0/21
IP Version
IPv4
Addresses
2K
Mask
/21 (255.255.248.0)
Country
🇩🇪 Germany
City
Frankfurt/Main
RIR
ARIN
Status
announced
Allocated
-
Announced BGP Routes
1 of 1 routeRPKI:
IRR:
Swipe sideways to see all columns →
| Prefix | Origin AS | RPKI | IRR | Last Seen |
|---|---|---|---|---|
| 81.199.72.0/21 | AS3320 DTAG Deutsche Telekom AG | Valid | Other IRR | 2026-10-12 |
RPKI ROAs
IRR Route Objects
| Origin | Registry | Maintainer | Modified |
|---|---|---|---|
| AS3320 | Other IRR | MAINT-AS398465 | 2025-09-11 |
Transfer History
Registry transfers of 81.199.72.0/21, blocks inside it, or blocks containing it.
- 81.199.64.0/20inter-RIRTransfer ·
| Date | Resource | From | To | Type |
|---|---|---|---|---|
| 81.199.64.0/20inter-RIR | Gilat Telecom Ltd. | Transfer |
Origin ASN
AS3320
DTAG Deutsche Telekom AG
Related Prefixes
More prefixes of AS3320
All prefixes of AS3320 →Geolocation
Country🇩🇪GermanyDE
CityFrankfurt/Main
Abuse Contact
Learn more
- RPKI and ROAs explainedWhat RPKI valid, invalid and no ROA mean
- RPKI validatorCheck ROA coverage for any prefix or ASN
- What is BGP?How prefixes are announced and routed
- More-specific prefixesGlossary: covering and more-specific routes
- IPv4 transfers in the ARIN regionWho bought and sold address space recently
API
Open https://api.ipctl.io/v1/prefix/81.199.72.0/21Returns prefix allocation, BGP routes, and more-specific subnets.
curl -s "https://api.ipctl.io/v1/prefix/81.199.72.0/21" | jq
External Links