Data as of Nov 13, 2026
209.166.48.0/20
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 · 3 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 209.166.48.0/20 | /24s |
|---|---|---|
| IPNetZone | 4,096100% | 16 |
Leased from
Owners leasing their own space
| Name | In 209.166.48.0/20 | /24s |
|---|---|---|
| GTT Americas, LLC | 4,096100% | 16 |
Lineage
How this block came to its use, oldest first. The whole IPv4 market →
209.166.48.0/20
From the registry to its use
- Dec 10, 1997Registry recordGTT Americas, LLCDirect Allocation (legacy, pre-1997)209.166.0.0/18
- May 9, 2005– Nov 9, 2007
- Nov 15, 2007– Jan 29, 2024
- Jan 18, 2024– today
- Dec 21, 2025Route objectAS20001 Charter Communications IncARIN route object for AS20001 Charter Communications Inc, maintainer MNT-GAL-104
- Jan 19, 2026– today
- Jan 22, 2026Route objectAS20001 Charter Communications IncRADB route object for AS20001 Charter Communications Inc, maintainer MAINT-RR
- Oct 23, 2026ReallocatedRCNReallocated209.166.48.0/20
- todayLeased fromIPNetZoneIP broker
Announcements
Less specific
Covering announcements
| Prefix | Origin | Type | Proxy exits | Holder | RPKI |
|---|---|---|---|---|---|
| 209.166.0.0/18 since Jan 2024 | AS3257 | Internet provider | 36 1 always on | 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 |
|---|---|---|---|---|---|---|
| 209.166.0.0/18 | 16,384 | MEGAPATH-BLK-32 | GTT Americas, LLC (GAL-104) · US | Direct Allocation | Dec 10, 1997 | abuse@ |
| └ 209.166.48.0/20 | 4,096 | GTT-CUSTOMER | IPNetZone (IPNET-1) · US | Reallocated | Dec 21, 2025 | ipabuse@ |
| └ 209.166.48.0/20 | 4,096 | RCN-GTT | RCN (RTSL-6) · US | Reallocated | Oct 23, 2026 | abuse@ |
Network & registry
IPv4 market
Holder
- Organization
- GTT Americas, LLC
- Handle
- GAL-104
- Range
- 209.
166. 0. 0/ 18 - Registration type
- Direct Allocation
- Record created
- Dec 10, 1997
- Legacy
- yes
- Reallocated to
- RCN (RTSL-6)
- Reallocated range
- 209.
166. 48. 0/ 20 - 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
- Stable
- First seen
- Jan 2026
- Current origin since
- Jan 2026 · 10 mo
- Origin networks
- 1
Whois
Registration for this announcement
- Range
- 209.
166. 48. 0/ 20 - 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-209-166-48-0-2
- Parent
- NET-209-166-48-0-1
- Created
- Oct 23, 2026
- RIR
- ARIN
- Country
- US
- Delegated
- Dec 10, 1997
- Status
- assigned
Report abuse
Abuse contact
- abuse@
rcn. com - Name
- RCN Abuse Department
- Phone
- +1-888-972-6622
- Handle
- RAD75-ARIN