81.23.0.0/20 - BGP Prefix
IPv4RIPE NCCallocated RPKI Valid
CIDR
81.23.0.0/20
IP Version
IPv4
Addresses
4K
Mask
/20 (255.255.240.0)
Country
🇷🇺 Russia
City
Moscow
RIR
RIPE NCC
Status
allocated
Allocated
2010-08-12
Announced BGP Routes
0 of 0 routesRPKI:
IRR:
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| Prefix | Origin AS | RPKI | IRR | Last Seen |
|---|---|---|---|---|
| This prefix is not announced as a whole. Parts of it are announced as more-specific prefixes, see below. | ||||
More-Specific Announcements
7 more-specific announcements| Prefix | Origin AS | RPKI | IRR | Last Seen |
|---|---|---|---|---|
| 81.23.0.0/21 | AS31261 GARS-AS PJSC MegaFon | Valid | - | 2026-10-11 |
| 81.23.8.0/23 | AS31261 GARS-AS PJSC MegaFon | Valid | - | 2026-10-11 |
| 81.23.9.0/24 | AS31261 GARS-AS PJSC MegaFon | Valid | - | 2026-10-11 |
| 81.23.10.0/23 | AS51219 K2_INT K2 Integration JSC | Valid | - | 2026-10-11 |
| 81.23.13.0/24 | AS215106 SISZ OOO Svyaz'-Invest Severo-Zapad | Valid | - | 2026-10-11 |
| 81.23.14.0/24 | AS31261 GARS-AS PJSC MegaFon | Valid | - | 2026-10-11 |
| 81.23.15.0/24 | AS51472 AIF AO ARGUMENTY I FAKTY | Valid | - | 2026-10-11 |
More Specific Prefixes
Transfer History
Registry transfers of 81.23.0.0/20, blocks inside it, or blocks containing it.
- 81.23.0.0/20M&A ·
Geolocation
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 RIPE NCC regionWho bought and sold address space recently
API
Open https://api.ipctl.io/v1/prefix/81.23.0.0/20Returns prefix allocation, BGP routes, and more-specific subnets.
curl -s "https://api.ipctl.io/v1/prefix/81.23.0.0/20" | jq
External Links