Data as of Nov 14, 2026
81.199.72.0/21
Anonymizer · ISP proxyDeutsche Telekom AG · space held by Rackdog, LLC
IPv4 market
Path
2 · Leased from
4 · Use
ISP proxy
anonymizer space, operator not named
Operators, sellers and brokers
Leased from
IP brokers
| Name | In 81.199.72.0/21 | /24s |
|---|---|---|
| Rackdog | 2,048100% | 8 |
Lineage
How this block came to its use, oldest first. The whole IPv4 market →
81.199.72.0/21
From the registry to its use
- Jan 7, 2021Registry recordRackdog, LLCDirect Allocation81.199.64.0/20
- Jul 8, 2021– Sep 29, 2021
- Oct 24, 2021– Nov 4, 2021
- Nov 7, 2023– Dec 24, 2023
- Dec 13, 2023– today
- Jan 11, 2024Route objectRackdogRADB route object for AS3320 Deutsche Telekom AG, maintainer MAINT-AS398465
- todayLeased fromRackdogIP broker
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 |
|---|---|---|---|---|---|---|
| 81.199.64.0/20 | 4,096 | VERIZON | Rackdog, LLC (RL-859) · US | Direct Allocation | Jan 7, 2021 | contact@ |
| └ 81.199.64.0/20 | 4,096 | RACKDOG | Cable & Fiberlink (MIL-167) · US | Reassigned | Oct 9, 2021 | ipoperations@ |
Network & registry
IPv4 market
Holder
- Organization
- Rackdog, LLC
- Handle
- RL-859
- Range
- 81.
199. 64. 0/ 20 - Registration type
- Direct Allocation
- Record created
- Jan 7, 2021
Origin network
AS3320
DE
- Name
- Deutsche Telekom AG
- Type
- Internet provider
- Registered
- Feb 23, 1995
- Domain
- telekom.de
- Website
- wholesale.telekom.com
- Industry
- Internet Service Provider (ISP)
- Spamhaus ASN-DROP
- not listed
Routing timeline
Who has announced this prefix
Summary
Routing history
- Pattern
- Rotating
- First seen
- Jul 2021
- Current origin since
- Dec 2023 · 2.9 yr
- Origin networks
- 4
- Last change of origin
- Dec 2023
Recorded history
History
- Handoffs
- 3
RPKI
Route origin authorizations
| ROA prefix | ASN | Max len | Anchor | Verdict |
|---|---|---|---|---|
| 81.199.72.0/21 | AS3320 | /24 | ARIN | RPKI valid |
| 81.199.64.0/20 | AS701 | /24 | ARIN | Another network |
| 81.199.64.0/20 | AS7018 | /24 | ARIN | Another network |
| 81.199.64.0/20 | AS7029 | /24 | ARIN | Another network |
IRR
Route objects on the exact prefix
| Origin | Registry | Description | Maintainer | Modified |
|---|---|---|---|---|
| AS3320 | RADB | Customer Route | MAINT-AS398465 | Sep 11, 2025 |
Whois
Registration for this announcement
- Range
- 81.
199. 64. 0/ 20 - Netname
- RACKDOG
- Registrant
- Cable & Fiberlink
- Organization
- Cable & Fiberlink (MIL-167)
- Org address
- 425 HUEHL RD BLDG 4B, Northbrook, IL, 60062
- Org country
- US
- Type
- Reassigned
- Handle
- NET-81-199-64-0-2
- Parent
- NET-81-199-64-0-1
- Created
- Oct 9, 2021
- RIR
- ARIN
- Country
- US
- Delegated
- Jan 7, 2021
- Status
- assigned
Report abuse
Abuse contact
- ipoperations@
cablefiberlink. com - Name
- CABLE AND FIBERLINK
- Phone
- +1-224-803-4912
- Handle
- CABLE66-ARIN