209.200.128.0/18 - BGP Prefix
IPv4ARINallocated RPKI Valid
CIDR
209.200.128.0/18
IP Version
IPv4
Addresses
16.3K
Mask
/18 (255.255.192.0)
Country
🇺🇸 United States
City
Cambridge (East Cambridge)
RIR
ARIN
Status
allocated
Allocated
2004-06-25
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
65 more-specific announcementsRPKI ROAs
| Prefix | Origin | Max Length | Trust Anchor |
|---|---|---|---|
| 209.200.128.0/18 | AS0 | /18 | arin |
IRR Route Objects
| Origin | Registry | Maintainer | Modified |
|---|---|---|---|
| AS32787 | ARIN | MNT-AKAMAI | 2024-03-08 |
Transfer History
Registry transfers of 209.200.128.0/18, blocks inside it, or blocks containing it.
- 209.200.128.0/18M&A ·
Geolocation
Country🇺🇸United StatesUS
RegionMassachusetts
CityCambridge (East Cambridge)
Coordinates42.3649, -71.0888 ↗
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/209.200.128.0/18Returns prefix allocation, BGP routes, and more-specific subnets.
curl -s "https://api.ipctl.io/v1/prefix/209.200.128.0/18" | jq
External Links