Data as of Nov 8, 2026
203.28.71.0/24
No anonymizer space · no proxy exits in 30 daysAmazon.com, Inc. · space held by Alber Blanc Alpha LTD
Announcement
this exact prefix
RPKI valid
Announced by
Type
Hosting
Risk
50 / 100 · Medium
Recently moved
Recent change
New origin May 2026
from AS17763, after 1.7 years unannounced
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 |
|---|---|---|---|---|---|---|
| 203.28.70.0/23 | 512 | ABAL-AP | Alber Blanc Alpha LTD (ORG-ABAL1-AP) · CY | ALLOCATED PORTABLE | — | noc@ |
| └ 203.28.71.0/24 | 256 | ABAL-AP-JP3 | Alber Blanc Alpha LTD JP 3 Kuc | ALLOCATED NON-PORTABLE | — | noc@ |
Network & registry
Registry
Holder
- Organization
- Alber Blanc Alpha LTD
- Handle
- ORG-ABAL1-AP
- Range
- 203.
28. 70. 0/ 23 - Registration type
- ALLOCATED PORTABLE
- Reallocated to
- Alber Blanc Alpha LTD JP 3 Kuc
- Reallocated range
- 203.
28. 71. 0/ 24 - Reallocation type
- ALLOCATED NON-PORTABLE
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
- 294
Routing timeline
Who has announced this prefix
Summary
Routing history
- Pattern
- Reactivated
- First seen
- May 2005
- Current origin since
- May 2026 · 5 mo
- Origin networks
- 3
- Last change of origin
- May 2026
Recorded history
History
- Handoffs
- 3
RPKI
Route origin authorizations
Whois
Registration for this announcement
- Range
- 203.
28. 71. 0/ 24 - Netname
- ABAL-AP-JP3
- Registrant
- Alber Blanc Alpha LTD JP 3 Kuc
- Registrant country
- JP
- Organization
- Alber Blanc Alpha LTD JP 3 Kuc
- Org country
- JP
- Type
- ALLOCATED NON-PORTABLE
- Created
- Not stated by the registry
- Updated
- Jun 1, 2026
- Maintainer
- MAINT-ABAL-AP
- RIR
- APNIC
- Country
- CY
- Delegated
- Jun 7, 1996
- Status
- assigned
Report abuse
Abuse contact
- noc@
alberblanc. com - Name
- ABUSE ABALAP
- Handle
- AA2854-AP