Data as of Nov 14, 2026
173.211.19.0/28
No anonymizer space · no proxy exits in 30 daysFortressITX · space held by Colocation America Corporation
Announcements
Less specific
Covering announcements
| Prefix | Origin | Type | Leased from | Holder | RPKI |
|---|---|---|---|---|---|
| 173.211.0.0/17 since Aug 2011 | AS21769 | Hosting | IP broker IPXO (part) | Colocation America Corporation |
Registrations in this block
The registry's network records over this block, widest first, each under its parent.
| Range | Addresses | Netname | Holder | Type | Created | Abuse contact |
|---|---|---|---|---|---|---|
| 173.211.0.0/17 | 32,768 | CAC-BLOCK7 | Colocation America Corporation (CAC-89) · US | Direct Allocation | Oct 5, 2009 | Abuse@ |
| └ 173.211.19.0/28 | 16 | A2Z-FRAMEWORKS-INC | unknown | — | — | — |
Network & registry
Announced by
Covering announcement 173.211.19.0/24
- Prefix
- 173.211.19.0/24
- Announced by
- AS25653 FortressITX
- Type
- Hosting
- RPKI
- RPKI valid
- Netname
- CAC-BLOCK7
- Registrant
- Colocation America Corporation
- RIR
- ARIN
Origin network
AS25653
US
- Name
- FortressITX
- Type
- Hosting
- Registered
- Apr 15, 2002
- Domain
- fortressitx.com
- Website
- www.fortressitx.com/
- Spamhaus ASN-DROP
- not listed
Routing timeline
Covering aggregate above, the prefix's own history below
173.211.19.0/24
Routing history
- Pattern
- Stable
- First seen
- Aug 2021
- Current origin since
- Aug 2021 · 5.2 yr
- Origin networks
- 1
RPKI
Route origin authorizations
| ROA prefix | ASN | Max len | Anchor | Verdict |
|---|---|---|---|---|
| 173.211.19.0/24 | AS25653 | /24 | ARIN | RPKI valid |
IRR
Route objects on 173.211.19.0/24
| Origin | Registry | Description | Maintainer | Modified |
|---|---|---|---|---|
| AS25653 | RADB | 173.211.19.0/24 - ColoAmerica | MAINT-AS25653 | Feb 2, 2026 |
Whois
Registration for this announcement
- Range
- 173.
211. 0. 0/ 17 - Netname
- CAC-BLOCK7
- Registrant
- Colocation America Corporation
- Organization
- Colocation America Corporation (CAC-89)
- Org address
- 9360 W Flamingo Rd Suite 178, Las Vegas, NV, 89147
- Org country
- US
- Type
- Direct Allocation
- Handle
- NET-173-211-0-0-1
- Parent
- NET-173-0-0-0-0
- Created
- Oct 5, 2009
- RIR
- ARIN
- Country
- US
- Delegated
- Oct 5, 2009
- Status
- assigned
Report abuse
Abuse contact
- Abuse@
colocationamerica. com - Name
- Abuse
- Phone
- +1-800-296-8915
- Handle
- ABUSE7705-ARIN