Data as of Nov 8, 2026
38.123.20.0/23
No anonymizer space · no proxy exits in 30 daysData Management · reallocated from Cogent Communications, LLC
Announcements
Less specific
Covering announcements
| Prefix | Origin | Type | Leased from | Proxy exits | Holder | RPKI |
|---|---|---|---|---|---|---|
| 38.0.0.0/8 | AS174 | Internet provider | IP broker Rackdog (part) | 403,145 78,303 always on | Cogent Communications, LLC |
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 |
|---|---|---|---|---|---|---|
| 38.0.0.0/8 | 16,777,216 | COGENT-A | Cogent Communications, LLC (COGC) · US | Direct Allocation | Apr 16, 1991 | abuse@ |
| └ 38.123.20.0/23 | 512 | DATAMAN-CGNT-NET-1 | Data Management (DMAB-3) · US | Reallocated | Jan 13, 2026 | — |
Network & registry
IPv4 market
Holder
- Organization
- Cogent Communications, LLC
- Handle
- COGC
- Range
- 38.
0. 0. 0/ 8 - Registration type
- Direct Allocation
- Record created
- Apr 16, 1991
- Legacy
- yes
- Reallocated to
- Data Management (DMAB-3)
- Reallocated range
- 38.
123. 20. 0/ 23 - Reallocated
- Jan 13, 2026
Origin network
AS395584
US
- Name
- Data Management
- Type
- Business
- Registered
- Jun 23, 2020
- Domain
- datamanagement365.com
- Industry
- Health Care Services
- Spamhaus ASN-DROP
- not listed
Routing timeline
Covering aggregate above, the prefix's own history below
Summary
Routing history
- Pattern
- Stable
- First seen
- Oct 2025
- Current origin since
- Oct 2025 · 1.0 yr
- Origin networks
- 1
IRR
Route objects on the exact prefix
| Origin | Registry | Description | Maintainer | Modified |
|---|---|---|---|---|
| AS395584 | RADB | Route Registered for Cogent Communications Customer - Data Management Associates of Brevard Inc (d/b/a ColoBarn) | MAINT-AS174 | Sep 16, 2025 |
Whois
Registration for this announcement
- Range
- 38.
123. 20. 0/ 23 - Netname
- DATAMAN-CGNT-NET-1
- Registrant
- Data Management
- Organization
- Data Management (DMAB-3)
- Org address
- 8905 South Beck Ave., Tempe, AZ, 85284
- Org country
- US
- Type
- Reallocated
- Handle
- NET-38-123-20-0-1
- Parent
- NET-38-0-0-0-1
- Created
- Jan 13, 2026
- RIR
- ARIN
- Country
- US
- Delegated
- Apr 16, 1991
- Status
- assigned
Report abuse
Abuse contact
- abuse@
cogentco. com - Name
- Cogent Abuse
- Phone
- +1-877-875-4311
- Handle
- COGEN-ARIN