Data as of Nov 15, 2026
159.63.176.0/21
No anonymizer space · no proxy exits in 30 daysGTT Communications Inc. · space held by Level 3 Parent, LLC
Lineage
How this block came to its use, oldest first. The whole IPv4 market →
159.63.176.0/21
From the registry to its use
- Mar 12, 1992Registry recordLevel 3 Parent, LLCDirect Allocation (legacy, pre-1997)159.63.0.0/16
- Jun 1, 2010– Nov 14, 2026
- May 4, 2011ReallocatedIPNetZoneReallocated159.63.176.0/21
- May 10, 2011
- Feb 1, 2016– Nov 18, 2016AnnouncedAS20077 IPNetZone
- Jul 12, 2018– Nov 14, 2026
- todayLeased fromIPNetZoneIP broker
Announcements
Less specific
Covering announcements
| Prefix | Origin | Type | Proxy exits | Holder | RPKI |
|---|---|---|---|---|---|
| 159.63.128.0/18 since Jun 2010 | AS3549 | Internet provider | 22 7 always on | Level 3 Parent, LLC |
More specific
Announcements inside
| Prefix | Origin | Type | Leased from | Holder | RPKI |
|---|---|---|---|---|---|
| 159.63.179.0/24 since Jun 2013 | AS3356 | Unknown | IP broker IPNetZone | Level 3 Parent, LLC via IPNetZone | |
| 159.63.180.0/24 since Sep 2016 | AS3356 | Unknown | IP broker IPNetZone | Level 3 Parent, LLC via IPNetZone |
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 |
|---|---|---|---|---|---|---|
| 159.63.0.0/16 | 65,536 | LVLT-ORG-159-63 | Level 3 Parent, LLC (LPL-141) · US | Direct Allocation | Mar 12, 1992 | abuse@ |
| └ 159.63.176.0/21 | 2,048 | IPNETZONE-5 | IPNetZone (IPNET-1) · US | Reallocated | May 4, 2011 | ipabuse@ |
Network & registry
Registry
Holder
- Organization
- Level 3 Parent, LLC
- Handle
- LPL-141
- Range
- 159.
63. 0. 0/ 16 - Registration type
- Direct Allocation
- Record created
- Mar 12, 1992
- Legacy
- yes
- Reallocated to
- IPNetZone (IPNET-1)
- Reallocated range
- 159.
63. 176. 0/ 21 - Reallocated
- May 4, 2011
Origin network
AS3257
US
- Name
- GTT Communications Inc.
- Type
- Internet provider
- Registered
- Sep 30, 1994
- Domain
- gtt.net
- Website
- www.gtt.net
- Industry
- Internet Service Provider (ISP)
- Spamhaus ASN-DROP
- not listed
- VPN servers
- 371
Routing timeline
Covering aggregate above, the prefix's own history below
Summary
Routing history
- Pattern
- Stable
- First seen
- Feb 2016
- Current origin since
- Jul 2018 · 8.3 yr
- Origin networks
- 2
- Last change of origin
- Jul 2018
Recorded history
History
- Handoffs
- 1
IRR
Route objects on the exact prefix
| Origin | Registry | Description | Maintainer | Modified |
|---|---|---|---|---|
| AS20077 not the origin | RADB | IPNETZONE-5 | MAINT-AS3257 | Nov 13, 2023 |
Whois
Registration for this announcement
- Range
- 159.
63. 176. 0/ 21 - Netname
- IPNETZONE-5
- Registrant
- IPNetZone
- Organization
- IPNetZone (IPNET-1)
- Org address
- 7900 Tysons One Place, McLean, VA, 22102
- Org country
- US
- Type
- Reallocated
- Handle
- NET-159-63-176-0-1
- Parent
- NET-159-63-0-0-1
- Created
- May 4, 2011
- RIR
- ARIN
- Country
- US
- Delegated
- Mar 12, 1992
- Status
- assigned
Report abuse
Abuse contact
- ipabuse@
unsi. net - Name
- Abuse Handle
- Phone
- +1-646-254-6800
- Handle
- ABUSE2254-ARIN