216.177.21.0/24 - Fibercast Corporation (AS10367)
CIDR
216.177.21.0/24
IP Version
IPv4
Addresses
256
Mask
/24 (255.255.255.0)
Country
🇺🇸 United States
City
Boston
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 |
|---|---|---|---|---|
| 216.177.21.0/24 | AS10367 FIBERCAST - Fibercast Corporation | No ROA | ARIN | 2026-10-12 |
Covering Prefix
3 less-specific announcements| Prefix | Origin AS | RPKI | IRR | Last Seen |
|---|---|---|---|---|
| 216.177.0.0/19 | AS10367 FIBERCAST - Fibercast Corporation | No ROA | - | 2026-10-12 |
| 216.177.0.0/19 | AS63009 FIBERCASTNET - Fibercast Corporation | No ROA | - | 2026-10-12 |
| 216.177.20.0/22 | AS63009 FIBERCASTNET - Fibercast Corporation | No ROA | - | 2026-10-12 |
IRR Route Objects
| Origin | Registry | Maintainer | Modified |
|---|---|---|---|
| AS10367 | ARIN | MNT-FC-208 | 2023-02-17 |
Transfer History
Registry transfers of 216.177.21.0/24, blocks inside it, or blocks containing it.
- 216.177.0.0/19M&A ·
| Date | Resource | From | To | Type |
|---|---|---|---|---|
| 216.177.0.0/19 | M&A |
Origin ASN
AS10367
FIBERCAST - Fibercast Corporation
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/216.177.21.0/24Returns prefix allocation, BGP routes, and more-specific subnets.
curl -s "https://api.ipctl.io/v1/prefix/216.177.21.0/24" | jq
External Links