Data as of Nov 14, 2026
173.211.72.0/22
2 residential-proxy exits · 30 daysColocation America Corporation
Residential-proxy exits
Proxy exits
2
0.20% of its addresses · 30 days
Oct 15, 2026 – Nov 13, 2026
Exits seen per day
1.1K observations
IPv4 market
Path
2 · Leased from
4 · Use
Unknown
Announcements
More specific
Announcements inside
| Prefix | Origin | Type | Leased from | Holder | RPKI |
|---|---|---|---|---|---|
| 173.211.72.0/23 since Feb 2024 | AS399672 | Unknown | IP broker IPXO | Colocation America Corporation via Internet Utilities NA LLC | |
| 173.211.74.0/23 since Apr 2024 | AS399672 | Unknown | IP broker IPXO | Colocation America Corporation via Internet Utilities NA LLC |
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@ |
| └ 173.211.72.0/22 | 1,024 | IPXO-LLC | IPXO LLC (IL-845) · US | Reallocated | Dec 8, 2023 | abuse@ |
| └ 173.211.72.0/22 | 1,024 | NETUTILS | Internet Utilities NA LLC (DCL-577) · US | Reallocated | Jan 7, 2025 | report@ |
| └ 173.211.72.0/22 | 1,024 | AERVIVO | Aervivo (C11060682) · US | Reassigned | Jan 7, 2025 | report@ via IPXO-LLC |
A contact marked “via” is the registry's: the record names none of its own, so the registry hands down its parent's.
Network & registry
Announced by
Covering announcement 173.211.0.0/17
- Prefix
- 173.211.0.0/17
- Announced by
- AS21769 Colocation America Corporation
- Type
- Hosting
- Leased from
- IP broker IPXO (part)
- RPKI
- No RPKI
- Netname
- CAC-BLOCK7
- Registrant
- Colocation America Corporation
- RIR
- ARIN
Origin network
AS21769
US
- Name
- Colocation America Corporation
- Type
- Hosting
- Registered
- Jul 15, 2005
- Domain
- colocationamerica.com
- Website
- www.colocationamerica.com
- Industry
- Hosting and Cloud Provider
- Spamhaus ASN-DROP
- not listed
Routing timeline
Who has announced 173.211.0.0/17
173.211.0.0/17
Routing history
- Pattern
- Stable
- First seen
- May 2010
- Current origin since
- Aug 2011 · 15 yr
- Origin networks
- 2
- Last change of origin
- Aug 2011
Recorded history
History
- Handoffs
- 1
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