Data as of Nov 12, 2026
18.66.58.0/23
No anonymizer space · no proxy exits in 30 daysAmazon.com, Inc. · reallocated from Amazon Technologies Inc.
Announcement
this exact prefix
RPKI valid
Announced by
Type
Hosting
Recent change
New origin Aug 2026
from AS16509 Amazon.com, Inc., after 1.2 years unannounced
Announcements
More specific
Announcements inside
| Prefix | Origin | Type | Holder | RPKI |
|---|---|---|---|---|
| 18.66.58.0/24 since Sep 28, 2026 | AS16509 | Hosting | Amazon Technologies Inc. via Amazon.com, Inc. | |
| 18.66.59.0/24 since Sep 28, 2026 | AS16509 | Hosting | Amazon Technologies Inc. via Amazon.com, Inc. |
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 |
|---|---|---|---|---|---|---|
| 18. | 14,680,064 | AT-88-Z | Amazon Technologies Inc. (AT-88-Z) · US | Direct Allocation | Oct 7, 2019 | trustandsafety@ |
| └ 18.64.0.0/14 | 262,144 | AMAZO-CF | Amazon.com, Inc. (AMAZON-4) · US | Reallocated | Feb 26, 2021 | trustandsafety@ |
Network & registry
IPv4 market
Holder
- Organization
- Amazon Technologies Inc.
- Handle
- AT-88-Z
- Range
- 18.
32. 0. 0 - 18. 255. 255. 255 - Registration type
- Direct Allocation
- Record created
- Oct 7, 2019
- Reallocated to
- Amazon.com, Inc. (AMAZON-4)
- Reallocated range
- 18.
64. 0. 0/ 14 - Reallocated
- Feb 26, 2021
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
- 300
Routing timeline
Who has announced this prefix
Summary
Routing history
- Pattern
- Stable
- First seen
- Sep 2021
- Current origin since
- Aug 2026 · 3 mo
- Origin networks
- 1
RPKI
Route origin authorizations
| ROA prefix | ASN | Max len | Anchor | Verdict |
|---|---|---|---|---|
| 18.64.0.0/14 | AS16509 | /24 | ARIN | RPKI valid |
Whois
Registration for this announcement
- Range
- 18.
64. 0. 0/ 14 - Netname
- AMAZO-CF
- Registrant
- Amazon.com, Inc.
- Organization
- Amazon.com, Inc. (AMAZON-4)
- Org address
- 1918 8th Ave, SEATTLE, WA, 98101-1244
- Org country
- US
- Type
- Reallocated
- Handle
- NET-18-64-0-0-1
- Parent
- NET-18-32-0-0-1
- Created
- Feb 26, 2021
- RIR
- ARIN
- Country
- US
- Delegated
- Oct 7, 2019
- Status
- assigned
Report abuse
Abuse contact
- trustandsafety@
support. aws. com - Name
- Amazon EC2 Abuse
- Phone
- +1-206-555-0000
- Handle
- AEA8-ARIN