Data as of Nov 5, 2026
204.154.190.0/24
No anonymizer space · no proxy exits in 30 daysMicrosoft Corporation · space held by Blue Cross Blue Shield of Kansas, 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 |
|---|---|---|---|---|---|---|
| 204.154.184.0/21 | 2,048 | BCBSKS | Blue Cross Blue Shield of Kansas, Inc. (BCBSK) · US | Direct Allocation | Nov 3, 1994 | — |
| └ 204.154.190.0/24 | 256 | BCBSKS-AZURE-BYOIP | Blue Cross and Blue Shield of Kansas, Inc. (C11165646) · US | Reassigned | Apr 9, 2025 | — |
Network & registry
Registry
Holder
- Organization
- Blue Cross Blue Shield of Kansas, Inc.
- Handle
- BCBSK
- Range
- 204.
154. 184. 0/ 21 - Registration type
- Direct Allocation
- Record created
- Nov 3, 1994
- Legacy
- yes
Origin network
AS8075
US
- Name
- Microsoft Corporation
- Type
- Hosting
- Registered
- Mar 31, 1997
- Domain
- microsoft.com
- Website
- www.microsoft.com
- Industry
- Software Development
- Spamhaus ASN-DROP
- not listed
Routing timeline
Who has announced this prefix
Summary
Routing history
- Pattern
- Stable
- First seen
- Apr 2025
- Current origin since
- Apr 2025 · 1.6 yr
- Origin networks
- 1
RPKI
Route origin authorizations
| ROA prefix | ASN | Max len | Anchor | Verdict |
|---|---|---|---|---|
| 204.154.190.0/24 | AS8075 | /24 | ARIN | RPKI valid |
Whois
Registration for this announcement
- Range
- 204.
154. 190. 0/ 24 - Netname
- BCBSKS-AZURE-BYOIP
- Registrant
- Blue Cross and Blue Shield of Kansas, Inc.
- Organization
- Blue Cross and Blue Shield of Kansas, Inc. (C11165646)
- Type
- Reassigned
- Handle
- NET-204-154-190-0-1
- Parent
- NET-204-154-184-0-1
- Created
- Apr 9, 2025
- RIR
- ARIN
- Country
- US
- Delegated
- Nov 3, 1994
- Status
- assigned
Report abuse
Abuse contact
- cc635@
bcbsks. com - Name
- BCBSKS Network Team
- Phone
- +1-800-432-3990
- Handle
- BNT4-ARIN