Data as of Nov 11, 2026
174.46.59.0/24
No anonymizer space · no proxy exits in 30 daysSouth Texas Blood and Tissue Center · space held by Level 3 Parent, LLC
Announcements
Less specific
Covering announcements
| Prefix | Origin | Type | Proxy exits | Holder | RPKI |
|---|---|---|---|---|---|
| 174.46.0.0/15 since Oct 2016 | AS3549 | Internet provider | 22 1 always on | Level 3 Parent, 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 |
|---|---|---|---|---|---|---|
| 174.46.0.0/15 | 131,072 | TWTC-NETBLK-17 | Level 3 Parent, LLC (LPL-141) · US | Direct Allocation | Jan 14, 2009 | abuse@ |
| └ 174.46.59.0/24 | 256 | CTL--BIOSTBTC | South Texas Blood and Tissue Center (STBTC) · US | Reassigned | Mar 26, 2020 | — |
Network & registry
IPv4 market
Holder
- Organization
- Level 3 Parent, LLC
- Handle
- LPL-141
- Range
- 174.
46. 0. 0/ 15 - Registration type
- Direct Allocation
- Record created
- Jan 14, 2009
Origin network
AS3459
US
- Name
- South Texas Blood and Tissue Center
- Type
- Business
- Registered
- Sep 4, 2009
- Domain
- bloodntissue.org
- 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
- Dec 2009
- Current origin since
- Dec 2009 · 17 yr
- Origin networks
- 2
- Last change of origin
- Oct 2011
Recorded history
History
- Handoffs
- 1
IRR
Route objects on the exact prefix
| Origin | Registry | Description | Maintainer | Modified |
|---|---|---|---|---|
| AS3459 | RADB | RR-RC-Biobridge Global-Texas | MAINT-RR | Jul 9, 2026 |
Whois
Registration for this announcement
- Range
- 174.
46. 59. 0/ 24 - Netname
- CTL--BIOSTBTC
- Registrant
- South Texas Blood and Tissue Center
- Organization
- South Texas Blood and Tissue Center (STBTC)
- Org address
- 6211 I-10 West, San Antonio, TX, 78201
- Org country
- US
- Type
- Reassigned
- Handle
- NET-174-46-59-0-1
- Parent
- NET-174-46-0-0-1
- Created
- Mar 26, 2020
- RIR
- ARIN
- Country
- US
- Delegated
- Jan 14, 2009
- Status
- assigned
Report abuse
Abuse contact
- AdminMisc@
bloodntissue. org - Name
- Admin
- Phone
- +1-210-757-9440
- Handle
- ADMIN9171-ARIN