Data as of Nov 8, 2026
206.51.59.0/24
No anonymizer space · no proxy exits in 30 daysTexas State Technical College Harlingen
Announcement
this exact prefix
No RPKI
Announced by
Type
Business
Risk
0 / 100 · Low
Recent change
New origin Aug 2026
its first announcement on record
Announcements
Less specific
Covering announcements
| Prefix | Origin | Type | Proxy exits | Holder | RPKI |
|---|---|---|---|---|---|
| 206.51.48.0/20 since Mar 2020 | AS397360 | Business | 1 | Texas State Technical College Harlingen |
Network & registry
Origin network
AS397360
US
- Name
- Texas State Technical College Harlingen
- Type
- Education
- Registered
- Mar 6, 2019
- Domain
- tstc.edu
- Industry
- Education Software
- Spamhaus ASN-DROP
- not listed
Routing timeline
Covering aggregate above, the prefix's own history below
Summary
Routing history
- Pattern
- Stable
- First seen
- Aug 2026
- Current origin since
- Aug 2026 · 3 mo
- Origin networks
- 1
Whois
Registration for this announcement
- Range
- 206.
51. 48. 0/ 20 - Netname
- TSTCHARLINGEN
- Registrant
- Texas State Technical College Harlingen
- Organization
- Texas State Technical College Harlingen (TSTCH)
- Org address
- 1902 N. Loop 499, Harlingen, TX, 78550
- Org country
- US
- Type
- Direct Allocation
- Handle
- NET-206-51-48-0-1
- Parent
- NET-206-0-0-0-0
- Created
- Apr 30, 2004
- RIR
- ARIN
- Country
- US
- Delegated
- Apr 30, 2004
- Status
- assigned
Report abuse
Abuse contact
- abuse@
tstc. edu - Name
- Abuse
- Phone
- +1-254-867-3375
- Handle
- ABUSE465-ARIN