Data as of Nov 3, 2026
173.226.72.0/21
No anonymizer space · no proxy exits in 30 daysLevel 3 Parent, LLC
Announcements
More specific
Announcements inside
| Prefix | Origin | Type | Holder | RPKI |
|---|---|---|---|---|
| 173.226.72.0/24 since Feb 2010 | AS26630 | Business | Level 3 Parent, LLC | |
| 173.226.73.0/24 since Nov 2021 | AS31874 | Business | Level 3 Parent, LLC | |
| 173.226.74.0/24 since Feb 2010 | AS26630 | Business | Level 3 Parent, LLC | |
| 173.226.75.0/24 since Feb 2010 | AS26630 | Business | Level 3 Parent, LLC | |
| 173.226.76.0/24 since Feb 2010 | AS26630 | Business | Level 3 Parent, LLC | |
| 173.226.77.0/24 since Feb 2010 | AS26630 | Business | Level 3 Parent, LLC | |
| 173.226.78.0/23 since Dec 2020 | AS26630 | Business | Level 3 Parent, LLC |
Registrations in this block
The registry's network records over this block, widest first, each under its parent.
| Range | Addresses | Netname | Holder | Type | Created | Abuse contact |
|---|---|---|---|---|---|---|
| 173.226.0.0/15 | 131,072 | TWTC-NETBLK-18 | Level 3 Parent, LLC (LPL-141) · US | Direct Allocation | Jan 8, 2010 | [email protected] |
| └ 173.226.72.0/21 | 2,048 | CTL-BLKNI5 | Black Knight IP Holding Company, LLC (BKIHL) · US | Reassigned | Feb 20, 2019 | — |
Network & registry
Announced by
Covering announcement 173.226.0.0/15
- Prefix
- 173.226.0.0/15
- Announced by
- AS3549 Level 3 Parent, LLC
- Type
- Residential
- Proxy exits
- 20
- Always-on exits
- 4
- RPKI
- No RPKI
- Netname
- TWTC-NETBLK-18
- Registrant
- Level 3 Parent, LLC
- RIR
- ARIN
Origin network
AS3549
US
- Name
- Level 3 Parent, LLC
- Type
- Internet provider
- Registered
- Mar 21, 2000
- Domain
- lumen.com
- Website
- www.lumen.com/
- Industry
- Internet Service Provider (ISP)
- Spamhaus ASN-DROP
- not listed
Routing timeline
Who has announced 173.226.0.0/15
173.226.0.0/15
Routing history
- Pattern
- Stable
- First seen
- Jan 2010
- Current origin since
- Oct 2016 · 10 yr
- Origin networks
- 2
- Last change of origin
- Oct 2016
Recorded history
History
- Handoffs
- 1
Whois
Registration for this announcement
- Range
- 173.226.0.0/15
- Netname
- TWTC-NETBLK-18
- Registrant
- Level 3 Parent, LLC
- Organization
- Level 3 Parent, LLC (LPL-141)
- Org address
- 100 CenturyLink Drive, Monroe, LA, 71203
- Org country
- US
- Type
- Direct Allocation
- Handle
- NET-173-226-0-0-1
- Parent
- NET-173-0-0-0-0
- Created
- Jan 8, 2010
- RIR
- ARIN
- Country
- US
- Delegated
- Jan 8, 2010
- Status
- assigned
Report abuse
Abuse contact
- [email protected]
- Name
- L3 Abuse Contact
- Phone
- +1-877-453-8353
- Handle
- LAC56-ARIN