173.192.72.0/22 - IBM Cloud (AS36351)
CIDR
173.192.72.0/22
IP Version
IPv4
Addresses
1K
Mask
/22 (255.255.252.0)
Country
🇨🇦 Canada
City
Toronto
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 |
|---|---|---|---|---|
| 173.192.72.0/22 | AS36351 SOFTLAYER - IBM Cloud | No ROA | Other IRR | 2026-10-11 |
Covering Prefix
1 less-specific announcement| Prefix | Origin AS | RPKI | IRR | Last Seen |
|---|---|---|---|---|
| 173.192.64.0/18 | AS36351 SOFTLAYER - IBM Cloud | No ROA | - | 2026-10-11 |
Transfer History
Registry transfers of 173.192.72.0/22, blocks inside it, or blocks containing it.
- 173.192.0.0/15M&A ·
| Date | Resource | From | To | Type |
|---|---|---|---|---|
| 173.192.0.0/15 | M&A |
Origin ASN
AS36351
SOFTLAYER - IBM Cloud
Related Prefixes
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 ARIN regionWho bought and sold address space recently
API
Open https://api.ipctl.io/v1/prefix/173.192.72.0/22Returns prefix allocation, BGP routes, and more-specific subnets.
curl -s "https://api.ipctl.io/v1/prefix/173.192.72.0/22" | jq
External Links