Data as of Nov 10, 2026
173.83.239.0/24
No anonymizer space · no proxy exits in 30 daysAmazon.com, Inc.
Announcement
this exact prefix
RPKI valid
Announced by
Type
Hosting
Risk
50 / 100 · Medium
Recent change
New origin Nov 4, 2026
its first announcement on record
Announcements
Less specific
Covering announcements
| Prefix | Origin | Type | Holder | RPKI |
|---|---|---|---|---|
| 173.83.0.0/16 since Dec 2024 | AS16509 | Hosting | Amazon.com, Inc. via Amazon.com Services, LLC |
Registrations in this block
The registry's network records over the announcement: those covering it, widest first, then every record inside it, under its parent.
| Range | Addresses | Netname | Holder | Type | Created | Abuse contact |
|---|---|---|---|---|---|---|
| 173.83.0.0/16 | 65,536 | AMAZO-4 | Amazon.com, Inc. (AMAZO-4) · US | Direct Allocation | May 10, 2022 | trustandsafety@ |
| └ 173.83.0.0/16 | 65,536 | AMAZON-FC | Amazon.com Services, LLC (ASL-830) · US | Reallocated | Sep 30, 2022 | trustandsafety@ |
Network & registry
IPv4 market
Holder
- Organization
- Amazon.com, Inc.
- Handle
- AMAZO-4
- Range
- 173.
83. 0. 0/ 16 - Registration type
- Direct Allocation
- Record created
- May 10, 2022
- Reallocated to
- Amazon.com Services, LLC (ASL-830)
- Reallocated
- Sep 30, 2022
Origin network
AS16509
US
- Name
- Amazon.com, Inc.
- Type
- Hosting
- Registered
- May 4, 2000
- Domain
- amazon.com
- Website
- www.amazon.com
- Industry
- Hosting and Cloud Provider
- Spamhaus ASN-DROP
- not listed
- VPN servers
- 286
Routing timeline
Covering aggregate above, the prefix's own history below
Summary
Routing history
- Pattern
- Stable
- First seen
- Nov 4, 2026
- Current origin since
- Nov 4, 2026 · under a month
- Origin networks
- 1
RPKI
Route origin authorizations
| ROA prefix | ASN | Max len | Anchor | Verdict |
|---|---|---|---|---|
| 173.83.192.0/18 | AS14618 | /24 | ARIN | Another network |
| 173.83.192.0/18 | AS16509 | /24 | ARIN | RPKI valid |
| 173.83.0.0/16 | AS16509 | /24 | ARIN | RPKI valid |
Whois
Registration for this announcement
- Range
- 173.
83. 0. 0/ 16 - Netname
- AMAZON-FC
- Registrant
- Amazon.com Services, LLC
- Organization
- Amazon.com Services, LLC (ASL-830)
- Org address
- 410 Terry Avenue N, Seattle, WA, 98109-5210
- Org country
- US
- Type
- Reallocated
- Handle
- NET-173-83-0-0-2
- Parent
- NET-173-83-0-0-1
- Created
- Sep 30, 2022
- RIR
- ARIN
- Country
- US
- Delegated
- May 10, 2022
- Status
- assigned
Report abuse
Abuse contact
- trustandsafety@
support. aws. com - Name
- Amazon EC2 Abuse
- Phone
- +1-206-555-0000
- Handle
- AEA8-ARIN