204.74.104.0/21 - BGP Prefix
IPv4ARINallocated RPKI Valid
CIDR
204.74.104.0/21
IP Version
IPv4
Addresses
2K
Mask
/21 (255.255.248.0)
Country
🇺🇸 United States
City
Chicago
RIR
ARIN
Status
allocated
Allocated
2022-01-28
Announced BGP Routes
0 of 0 routesRPKI:
IRR:
Swipe sideways to see all columns →
| 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
29 more-specific announcementsTransfer History
Registry transfers of 204.74.104.0/21, blocks inside it, or blocks containing it.
- 204.74.104.0/21M&A ·
- 204.74.105.0/24Transfer ·
- 204.74.106.0/24Transfer ·
- 204.74.108.0/24Transfer ·
- 204.74.111.0/24Transfer ·
- 204.74.110.0/24Transfer ·
- 204.74.109.0/24Transfer ·
- 204.74.107.0/24Transfer ·
- 204.74.104.0/24Transfer ·
| Date | Resource | From | To | Type |
|---|---|---|---|---|
| 204.74.104.0/21 | M&A | |||
| 204.74.105.0/24 | Transfer | |||
| 204.74.106.0/24 | Transfer | |||
| 204.74.108.0/24 | Transfer | |||
| 204.74.111.0/24 | Transfer | |||
| 204.74.110.0/24 | Transfer | |||
| 204.74.109.0/24 | Transfer | |||
| 204.74.107.0/24 | Transfer | |||
| 204.74.104.0/24 | Transfer |
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/204.74.104.0/21Returns prefix allocation, BGP routes, and more-specific subnets.
curl -s "https://api.ipctl.io/v1/prefix/204.74.104.0/21" | jq
External Links