Data as of Nov 7, 2026
66.17.80.0/20
No anonymizer space · no proxy exits in 30 daysGTT Communications Inc. · space held by Sparkplug Southwest, LLC.
Announcements
More specific
Announcements inside
| Prefix | Origin | Type | Holder | RPKI |
|---|---|---|---|---|
| 66.17.93.0/24 since Jan 2020 | AS35985 | Residential | Sparkplug Southwest, 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 |
|---|---|---|---|---|---|---|
| 66.17.80.0/20 | 4,096 | NET-66-17-80-0-1 | Sparkplug Southwest, LLC. (SSL-162) · US | Direct Allocation | Sep 19, 2006 | abuse@ |
| └ 66.17.88.0/24 | 256 | BOLT-INTERNET2 | unknown | — | — | — |
| └ 66.17.93.0/24 | 256 | AERODATA-GTT | Aerodata Inc (AEROD-4) · US | Reassigned | Jan 8, 2020 | terrym@ |
Composition
The types across the prefix's announced space, by addresses.
Announced space
Address share
Announced space
Types across the prefix
4,096 addresses
| Type | Addresses | Share | Ranges | |
|---|---|---|---|---|
| Unknown | 3,584 | 88% | 3 | |
| Business | 256 | 6.3% | 1 | |
| Residential | 256 | 6.3% | 1 |
Network & registry
Origin network
AS3257
US
- Name
- GTT Communications Inc.
- Type
- Internet provider
- Registered
- Sep 30, 1994
- Domain
- gtt.net
- Website
- www.gtt.net
- Industry
- Internet Service Provider (ISP)
- Spamhaus ASN-DROP
- not listed
- VPN servers
- 244
Routing timeline
Who has announced this prefix
Summary
Routing history
- Pattern
- Rotating
- First seen
- Oct 2006
- Current origin since
- Apr 2023 · 3.5 yr
- Origin networks
- 3
- Last change of origin
- Apr 2023
Recorded history
History
- Handoffs
- 3
IRR
Route objects on the exact prefix
| Origin | Registry | Description | Maintainer | Modified |
|---|---|---|---|---|
| AS3257 | ARIN | GTT | MNT-SSL-162 | Apr 25, 2025 |
Whois
Registration for this announcement
- Range
- 66.
17. 80. 0/ 20 - Netname
- NET-66-17-80-0-1
- Registrant
- Sparkplug Southwest, LLC.
- Organization
- Sparkplug Southwest, LLC. (SSL-162)
- Org address
- 14800 Landmark Blvd, Dallas, TX, 75254
- Org country
- US
- Type
- Direct Allocation
- Handle
- NET-66-17-80-0-1
- Parent
- NET-66-0-0-0-0
- Created
- Sep 19, 2006
- RIR
- ARIN
- Country
- US
- Delegated
- Sep 19, 2006
- Status
- assigned
Report abuse
Abuse contact
- abuse@
gtt. net - Name
- GTT Abuse Department
- Phone
- +1-703-442-5500
- Handle
- GAD46-ARIN