Data as of Nov 9, 2026
66.17.129.0/24
Anonymizer · ISP proxyCharter Communications Inc · space held by GTT Americas, LLC
Announcement
this exact prefix
RPKI valid
Announced by
Type
ISP proxy
Risk
90 / 100 · Critical
Recent change
Reallocated Oct 23, 2026
to RCN by GTT Americas, LLC
IPv4 market
Path
Reallocated to RCN · Oct 23, 2026 · 2 wk ago · by GTT Americas, LLC
4 · Use
ISP proxy
anonymizer space, operator not named
Operators, sellers and brokers
Leased from
IP brokers
| Name | In 66.17.129.0/24 | /24s |
|---|---|---|
| IPNetZone | 256100% | 1 |
Leased from
Owners leasing their own space
| Name | In 66.17.129.0/24 | /24s |
|---|---|---|
| GTT Americas, LLC | 256100% | 1 |
Lineage
How this block came to its use, oldest first. The whole IPv4 market →
66.17.129.0/24
From the registry to its use
- Nov 18, 2002Registry recordGTT Americas, LLCDirect Allocation66.17.128.0/17
- May 9, 2005– Jun 29, 2018
- May 9, 2005– Jul 1, 2005
- Jul 8, 2005– Nov 22, 2007
- Dec 1, 2007– Dec 15, 2008AnnouncedAS40431 ColocateUSA
- Mar 1, 2009– Jul 22, 2009
- Aug 1, 2009– Oct 15, 2014AnnouncedAS19475 Vigilant Futures
- Oct 22, 2014– Jul 22, 2025
- Jun 18, 2018– today
- Mar 5, 2026Route objectAS20001 Charter Communications IncARIN route object for AS20001 Charter Communications Inc, maintainer MNT-GAL-104
- Mar 8, 2026– today
- Oct 23, 2026ReallocatedRCNReallocated66.17.129.0/24
- todayLeased fromIPNetZoneIP broker
Announcements
Less specific
Covering announcements
| Prefix | Origin | Type | Proxy exits | Holder | RPKI |
|---|---|---|---|---|---|
| 66.17.128.0/17 since Jun 2018 | AS3257 | Internet provider | 9 | GTT Americas, 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 |
|---|---|---|---|---|---|---|
| 66.17.128.0/17 | 32,768 | RGS-BLK6 | GTT Americas, LLC (GAL-104) · US | Direct Allocation | Nov 18, 2002 | abuse@ |
| └ 66.17.129.0/24 | 256 | GTT-CUSTOMER | IPNetZone (IPNET-1) · US | Reallocated | Feb 25, 2026 | ipabuse@ |
| └ 66.17.129.0/24 | 256 | GTT-CUSTOMER | IPNetZone (IPNET-1) · US | Reallocated | Feb 26, 2026 | ipabuse@ |
| └ 66.17.129.0/24 | 256 | RCN-GTT | RCN (RTSL-6) · US | Reallocated | Oct 23, 2026 | abuse@ |
Network & registry
IPv4 market
Holder
- Organization
- GTT Americas, LLC
- Handle
- GAL-104
- Range
- 66.
17. 128. 0/ 17 - Registration type
- Direct Allocation
- Record created
- Nov 18, 2002
- Reallocated to
- RCN (RTSL-6)
- Reallocated range
- 66.
17. 129. 0/ 24 - Reallocated
- Oct 23, 2026
Origin network
AS20001
US
- Name
- Charter Communications Inc
- Type
- Internet provider
- Registered
- Mar 13, 2001
- Domain
- charter.com
- Website
- www.spectrum.com
- Industry
- Internet Service Provider (ISP)
- Spamhaus ASN-DROP
- not listed
Routing timeline
Covering aggregate above, the prefix's own history below
Summary
Routing history
- Pattern
- Rotating
- First seen
- May 2005
- Current origin since
- Mar 2026 · 8 mo
- Origin networks
- 6
- Last change of origin
- Mar 2026
Recorded history
History
- Handoffs
- 6
Whois
Registration for this announcement
- Range
- 66.
17. 129. 0/ 24 - Netname
- RCN-GTT
- Registrant
- RCN
- Organization
- RCN (RTSL-6)
- Org address
- 650 College Road East, Princeton, NJ, 08540
- Org country
- US
- Type
- Reallocated
- Handle
- NET-66-17-129-0-3
- Parent
- NET-66-17-129-0-2
- Created
- Oct 23, 2026
- RIR
- ARIN
- Country
- US
- Delegated
- Nov 18, 2002
- Status
- assigned
Report abuse
Abuse contact
- abuse@
rcn. com - Name
- RCN Abuse Department
- Phone
- +1-888-972-6622
- Handle
- RAD75-ARIN