Data as of Nov 13, 2026
38.129.0.0/24
No anonymizer space · no proxy exits in 30 daysThink On, Inc. · reallocated from Cogent Communications, LLC
Announcement
this exact prefix
RPKI valid
Announced by
Type
Hosting
Risk
50 / 100 · Medium
Recent change
Reallocated Oct 1, 2026
to Think On, Inc. by 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) | 398,658 73,038 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@ |
| └ 38.129.0.0/24 | 256 | THINK-ON-INC-CGNT-NET-4 | Think On, Inc. (TO-16) · CA | Reallocated | Oct 1, 2026 | henio. |
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
- Think On, Inc. (TO-16)
- Reallocated range
- 38.
129. 0. 0/ 24 - Reallocated
- Oct 1, 2026
Origin network
AS397468
CA
- Name
- Think On, Inc.
- Type
- Hosting
- Registered
- Apr 5, 2019
- Domain
- thinkon.com
- Website
- www.thinkon.com
- Industry
- Software Development
- Spamhaus ASN-DROP
- not listed
Routing timeline
Covering aggregate above, the prefix's own history below
Summary
Routing history
- Pattern
- Rotating
- First seen
- Apr 2025
- Current origin since
- Apr 2025 · 1.6 yr
- Origin networks
- 2
- Last change of origin
- Apr 2025
Recorded history
History
- Handoffs
- 1
RPKI
Route origin authorizations
| ROA prefix | ASN | Max len | Anchor | Verdict |
|---|---|---|---|---|
| 38.129.0.0/24 | AS397468 | /24 | ARIN | RPKI valid |
Whois
Registration for this announcement
- Range
- 38.
129. 0. 0/ 24 - Netname
- THINK-ON-INC-CGNT-NET-4
- Registrant
- Think On, Inc.
- Organization
- Think On, Inc. (TO-16)
- Org address
- 56 Aberfoyle Cres., Etobicoke, ON, M8X 2W4
- Org country
- CA
- Type
- Reallocated
- Handle
- NET-38-129-0-0-1
- Parent
- NET-38-0-0-0-1
- Created
- Oct 1, 2026
- RIR
- ARIN
- Country
- US
- Delegated
- Apr 16, 1991
- Status
- assigned
Report abuse
Abuse contact
- henio.
almeida@ thinkon. com - Name
- VP of Infrastructure
- Phone
- +1-647-478-9266
- Handle
- VPOFI1-ARIN