Data as of Nov 9, 2026
173.247.236.0/24
No anonymizer space · no proxy exits in 30 daysCorporate Colocation Inc.
IPv4 market
Path
1 · Holder
record created Jul 29, 2010 · reallocated to Internet Utilities NA LLC Jan 7, 2025
2 · Leased from
4 · Use
Hosting
Lineage
How this block came to its use, oldest first. The whole IPv4 market →
173.247.236.0/24
From the registry to its use
- Jul 29, 2010Registry recordCorporate Colocation Inc.Direct Allocation173.247.224.0/20
- Mar 1, 2011– Nov 8, 2012
- Dec 25, 2016– Jun 10, 2017
- May 2, 2020– today
- Jun 10, 2024– Jul 3, 2024
- Dec 31, 2024– today
- Jan 7, 2025ReallocatedInternet Utilities NA LLCReallocated173.247.236.0/24
- todayLeased fromIPXOIP broker
Announcements
Less specific
Covering announcements
| Prefix | Origin | Type | Leased from | Holder | RPKI |
|---|---|---|---|---|---|
| 173.247.224.0/20 since Dec 2024 | AS17139 | Hosting | IP broker IPXO | Corporate Colocation 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 |
|---|---|---|---|---|---|---|
| 173.247.224.0/20 | 4,096 | CORPCOLO-NET04 | Corporate Colocation Inc. (CORPO-6) · US | Direct Allocation | Jul 29, 2010 | abuse@ |
| └ 173.247.236.0/24 | 256 | IPXO-173-247-236-0-24 | IPXO LLC (IL-845) · US | Reallocated | May 23, 2024 | abuse@ |
| └ 173.247.236.0/24 | 256 | NETUTILS | Internet Utilities NA LLC (DCL-577) · US | Reallocated | Jan 7, 2025 | report@ |
Network & registry
IPv4 market
Holder
- Organization
- Corporate Colocation Inc.
- Handle
- CORPO-6
- Range
- 173.
247. 224. 0/ 20 - Registration type
- Direct Allocation
- Record created
- Jul 29, 2010
- Reallocated to
- Internet Utilities NA LLC (DCL-577)
- Reallocated range
- 173.
247. 236. 0/ 24 - Reallocated
- Jan 7, 2025
Origin network
AS17139
US
- Name
- Corporate Colocation Inc.
- Type
- Hosting
- Registered
- Aug 28, 2007
- Domain
- coloradocolo.com
- Website
- coloradocolo.com
- Industry
- Hosting and Cloud Provider
- Spamhaus ASN-DROP
- not listed
Routing timeline
Covering aggregate above, the prefix's own history below
Summary
Routing history
- Pattern
- Stable
- First seen
- Dec 2016
- Current origin since
- May 2020 · 6.5 yr
- Origin networks
- 1
RPKI
Route origin authorizations
| ROA prefix | ASN | Max len | Anchor | Verdict |
|---|---|---|---|---|
| 173.247.236.0/24 | AS17139 | /24 | ARIN | RPKI valid |
| 173.247.224.0/20 | AS17139 | /20 | ARIN | Too specific |
Whois
Registration for this announcement
- Range
- 173.
247. 236. 0/ 24 - Netname
- NETUTILS
- Registrant
- Internet Utilities NA LLC
- Organization
- Internet Utilities NA LLC (DCL-577)
- Org address
- 2711 Centerville Road, Wilmington, DE, 19808
- Org country
- US
- Type
- Reallocated
- Handle
- NET-173-247-236-0-2
- Parent
- NET-173-247-236-0-1
- Created
- Jan 7, 2025
- RIR
- ARIN
- Country
- US
- Delegated
- Jul 29, 2010
- Status
- assigned
Report abuse
Abuse contact
- report@
abuseradar. com - Name
- Internet Utilities Abuse
- Phone
- +1-650-934-1667
- Handle
- IUA-ARIN