Data as of Nov 5, 2026
72.57.31.0/24
No anonymizer space · no proxy exits in 30 daysAmazon.com, Inc. · space held by BIF IV
Network & registry
Origin network
AS14618
US
- Name
- Amazon.com, Inc.
- Type
- Hosting
- Registered
- Nov 4, 2005
- Domain
- amazon.com
- Industry
- Hosting and Cloud Provider
- Spamhaus ASN-DROP
- not listed
- VPN servers
- 22
Routing timeline
Who has announced this prefix
Summary
Routing history
- Pattern
- Stable
- First seen
- Feb 2026
- Current origin since
- Feb 2026 · 8 mo
- Origin networks
- 1
RPKI
Route origin authorizations
| ROA prefix | ASN | Max len | Anchor | Verdict |
|---|---|---|---|---|
| 72.57.28.0/22 | AS14618 | /24 | ARIN | RPKI valid |
| 72.57.28.0/22 | AS16509 | /24 | ARIN | Another network |
| 72.57.0.0/19 | AS394056 | /25 | ARIN | Another network |
Whois
Registration for this announcement
- Range
- 72.
57. 0. 0/ 19 - Netname
- BIIOL
- Registrant
- BIF IV
- Organization
- BIF IV (BIIOL)
- Org address
- 251 Little Falls Drive, Wilmington, DE, 19808
- Org country
- US
- Type
- Direct Allocation
- Handle
- NET-72-57-0-0-1
- Parent
- NET-72-0-0-0-0
- Created
- Jul 30, 2025
- RIR
- ARIN
- Country
- US
- Delegated
- Jul 30, 2025
- Status
- assigned
Report abuse
Abuse contact
- admin@
intrepidfiber. com - Name
- BIF IV ARIN Admin
- Phone
- +1-720-680-3200
- Handle
- BIAA-ARIN