207.186.204.0/23 - The Children'S Hospital Corporation (AS33756)
CIDR
207.186.204.0/23
IP Version
IPv4
Addresses
512
Mask
/23 (255.255.254.0)
Country
🇺🇸 United States
City
Boston (Longwood Medical and Academic Area)
RIR
ARIN
Status
allocated
Allocated
2026-06-12
Announced BGP Routes
1 of 1 routeRPKI:
IRR:
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| Prefix | Origin AS | RPKI | IRR | Last Seen |
|---|---|---|---|---|
| 207.186.204.0/23 | AS33756 CHC-ASN-A - The Children's Hospital Corporation | Valid | ARINOther IRR | 2026-10-12 |
RPKI ROAs
| Prefix | Origin | Max Length | Trust Anchor |
|---|---|---|---|
| 207.186.204.0/23 | AS33756 | /24 | arin |
Transfer History
Registry transfers of 207.186.204.0/23, blocks inside it, or blocks containing it.
- 207.186.204.0/23Transfer ·
Related Prefixes
Geolocation
Country🇺🇸United StatesUS
RegionMassachusetts
CityBoston (Longwood Medical and Academic Area)
Coordinates42.3374, -71.1059 ↗
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/207.186.204.0/23Returns prefix allocation, BGP routes, and more-specific subnets.
curl -s "https://api.ipctl.io/v1/prefix/207.186.204.0/23" | jq
External Links