83.172.0.0/19 - BGP Prefix
IPv4RIPE NCCallocatedNo ROA
CIDR
83.172.0.0/19
IP Version
IPv4
Addresses
8.1K
Mask
/19 (255.255.224.0)
Country
🇷🇺 Russia
City
Tomsk
RIR
RIPE NCC
Status
allocated
Allocated
2004-04-22
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
6 more-specific announcements| Prefix | Origin AS | RPKI | IRR | Last Seen |
|---|---|---|---|---|
| 83.172.0.0/20 | AS56981 TOMSK-AS JSC "ER-Telecom Holding" | No ROA | - | 2026-10-11 |
| 83.172.4.0/22 | AS56981 TOMSK-AS JSC "ER-Telecom Holding" | No ROA | - | 2026-10-11 |
| 83.172.12.0/22 | AS56981 TOMSK-AS JSC "ER-Telecom Holding" | No ROA | - | 2026-10-11 |
| 83.172.16.0/22 | AS56981 TOMSK-AS JSC "ER-Telecom Holding" | No ROA | - | 2026-10-11 |
| 83.172.24.0/22 | AS33892 SELS-AS LLC "Severskelectrosvyaz" | No ROA | - | 2026-10-11 |
| 83.172.28.0/22 | AS33892 SELS-AS LLC "Severskelectrosvyaz" | No ROA | - | 2026-10-11 |
More Specific Prefixes
| Prefix | AS | Country | Status |
|---|---|---|---|
| 83.172.0.0/20 | AS56981 | 🇷🇺RU | assigned |
| 83.172.16.0/22 | AS56981 | 🇷🇺RU | assigned |
| 83.172.20.0/22 | 🇷🇺RU | assigned | |
| 83.172.24.0/22 | AS33892 | 🇷🇺RU | assigned |
| 83.172.28.0/22 | AS33892 | 🇷🇺RU | assigned |
Transfer History
Registry transfers of 83.172.0.0/19, blocks inside it, or blocks containing it.
- 83.172.0.0/19M&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/83.172.0.0/19Returns prefix allocation, BGP routes, and more-specific subnets.
curl -s "https://api.ipctl.io/v1/prefix/83.172.0.0/19" | jq
External Links