161.231.0.0/16 - BGP Prefix
IPv4ARINallocatedNo ROA
CIDR
161.231.0.0/16
IP Version
IPv4
Addresses
65.5K
Mask
/16 (255.255.0.0)
Country
🇺🇸 United States
City
San Francisco (Financial District)
RIR
ARIN
Status
allocated
Allocated
1993-03-19
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
1 more-specific announcement| Prefix | Origin AS | RPKI | IRR | Last Seen |
|---|---|---|---|---|
| 161.231.1.0/24 | AS4196 WELLSFARGO-4196 - Wells Fargo Bank, N.A. | No ROA | - | 2026-10-11 |
Transfer History
Registry transfers of 161.231.0.0/16, blocks inside it, or blocks containing it.
- 161.231.0.0/16M&A ·
- 161.231.0.0/16M&A ·
Geolocation
Country🇺🇸United StatesUS
RegionCalifornia
CitySan Francisco (Financial District)
Coordinates37.7934, -122.4030 ↗
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/161.231.0.0/16Returns prefix allocation, BGP routes, and more-specific subnets.
curl -s "https://api.ipctl.io/v1/prefix/161.231.0.0/16" | jq
External Links