Data as of Nov 11, 2026
173.205.78.0/23
Anonymizer · ISP proxyCharter Communications Inc · space held by PacketExchange, Inc
Announcement
this exact prefix
RPKI valid
Announced by
Type
ISP proxy
Risk
90 / 100 · Critical
Recent change
Reallocated Oct 23, 2026
to RCN by PacketExchange, Inc
IPv4 market
Path
Reallocated to RCN · Oct 23, 2026 · 3 wk ago · by PacketExchange, Inc
4 · Use
ISP proxy
anonymizer space, operator not named
Operators, sellers and brokers
Leased from
IP brokers
| Name | In 173.205.78.0/23 | /24s |
|---|---|---|
| IPNetZone | 512100% | 2 |
Leased from
Owners leasing their own space
| Name | In 173.205.78.0/23 | /24s |
|---|---|---|
| PacketExchange, Inc | 512100% | 2 |
Lineage
How this block came to its use, oldest first. The whole IPv4 market →
173.205.78.0/23
From the registry to its use
- Oct 15, 2009Registry recordPacketExchange, IncDirect Allocation173.205.0.0/17
- Apr 22, 2011– Nov 1, 2014
- Oct 8, 2014– Jun 27, 2016
- Jul 22, 2015– today
- Aug 15, 2016– Oct 30, 2022
- Feb 25, 2026Route objectAS20001 Charter Communications IncARIN route object for AS20001 Charter Communications Inc, maintainer MNT-PACKE-25
- Mar 8, 2026– today
- Oct 23, 2026ReallocatedRCNReallocated173.205.78.0/23
- todayLeased fromIPNetZoneIP broker
Announcements
Less specific
Covering announcements
| Prefix | Origin | Type | Anonymizer addresses | Operator | Proxy exits | Holder | RPKI |
|---|---|---|---|---|---|---|---|
| 173.205.0.0/17 since Jul 2015 | AS3257 | Unknown | 2<0.01%VPN | VPN servicesoperated by Windscribe | 3 | PacketExchange, Inc |
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 |
|---|---|---|---|---|---|---|
| 173.205.0.0/17 | 32,768 | NETBLK-PACKETEXCHANGE-V4-09 | PacketExchange, Inc (PACKE-25) · US | Direct Allocation | Oct 15, 2009 | abuse@ |
| └ 173.205.78.0/23 | 512 | GTT-CUSTOMER | IPNetZone (IPNET-1) · US | Reallocated | Feb 25, 2026 | ipabuse@ |
| └ 173.205.78.0/23 | 512 | RCN-GTT | RCN (RTSL-6) · US | Reallocated | Oct 23, 2026 | abuse@ |
Network & registry
IPv4 market
Holder
- Organization
- PacketExchange, Inc
- Handle
- PACKE-25
- Range
- 173.
205. 0. 0/ 17 - Registration type
- Direct Allocation
- Record created
- Oct 15, 2009
- Reallocated to
- RCN (RTSL-6)
- Reallocated range
- 173.
205. 78. 0/ 23 - 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
- Reactivated
- First seen
- Oct 2014
- Current origin since
- Mar 2026 · 8 mo
- Origin networks
- 2
- Last change of origin
- Mar 2026
Recorded history
History
- Handoffs
- 1
Whois
Registration for this announcement
- Range
- 173.
205. 78. 0/ 23 - 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-173-205-78-0-2
- Parent
- NET-173-205-78-0-1
- Created
- Oct 23, 2026
- RIR
- ARIN
- Country
- US
- Delegated
- Oct 15, 2009
- Status
- assigned
Report abuse
Abuse contact
- abuse@
rcn. com - Name
- RCN Abuse Department
- Phone
- +1-888-972-6622
- Handle
- RAD75-ARIN