Data as of Nov 9, 2026
38.91.120.0/21
No anonymizer space · no proxy exits in 30 daysCrown Castle Fiber LLC · space held by Cogent Communications, LLC
Announcements
Less specific
Covering announcements
| Prefix | Origin | Type | Leased from | Proxy exits | Holder | RPKI |
|---|---|---|---|---|---|---|
| 38.0.0.0/8 | AS174 | Internet provider | IP broker Rackdog (part) | 403,145 78,303 always on | Cogent Communications, LLC |
More specific
Announcements inside
| Prefix | Origin | Type | Holder | RPKI |
|---|---|---|---|---|
| 38.91.122.0/24 since Jul 2017 | AS33313 | Unknown | Cogent Communications, LLC via Wilcon |
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 |
|---|---|---|---|---|---|---|
| 38.0.0.0/8 | 16,777,216 | COGENT-A | Cogent Communications, LLC (COGC) · US | Direct Allocation | Apr 16, 1991 | abuse@ |
| └ 38.91.120.0/21 | 2,048 | WILCON-CGNT-NET-3 | Wilcon (WCL-96) · US | Reallocated | Jul 17, 2018 | abuse@ |
| └ 38.91.123.144/29 | 8 | NET-38-91-123-144-29 | unknown | — | — | — |
| └ 38.91.125.80/28 | 16 | NET-0-38-91-125-80-28 | unknown | — | — | — |
| └ 38.91.125.168/29 | 8 | NET-0-38-91-125-168-29 | unknown | — | — | — |
| └ 38.91.125.248/29 | 8 | NET-0-38-91-125-248-29 | unknown | — | — | — |
| └ 38.91.126.0/27 | 32 | NET-38-91-126-0-27 | unknown | — | — | — |
| └ 38.91.126.144/28 | 16 | NET-0-38-91-126-144-28 | unknown | — | — | — |
| └ 38.91.126.160/29 | 8 | NET-0-38-91-126-160-29 | unknown | — | — | — |
| └ 38.91.126.192/27 | 32 | NET-0-38-91-126-192-27 | unknown | — | — | — |
| └ 38.91.126.224/28 | 16 | NET-0-38-91-126-224-28 | unknown | — | — | — |
| └ 38.91.126.248/29 | 8 | NET-0-38-91-126-248-29 | unknown | — | — | — |
| └ 38.91.127.80/29 | 8 | NET-0-38-91-127-80-29 | unknown | — | — | — |
| └ 38.91.127.128/29 | 8 | NET-0-38-91-127-128-29 | unknown | — | — | — |
| └ 38.91.127.136/29 | 8 | NET-SD-51183-38-91-127-136-29 | unknown | — | — | — |
| └ 38.91.127.144/29 | 8 | NET-0-38-91-127-144-29 | unknown | — | — | — |
| └ 38.91.127.200/29 | 8 | NET-0-38-91-127-200-29 | unknown | — | — | — |
| └ 38.91.127.208/28 | 16 | NET-0-38-91-127-208-28 | unknown | — | — | — |
Network & registry
IPv4 market
Holder
- Organization
- Cogent Communications, LLC
- Handle
- COGC
- Range
- 38.
0. 0. 0/ 8 - Registration type
- Direct Allocation
- Record created
- Apr 16, 1991
- Legacy
- yes
- Reallocated to
- Wilcon (WCL-96)
- Reallocated range
- 38.
91. 120. 0/ 21 - Reallocated
- Jul 17, 2018
Origin network
AS33313
US
- Name
- Crown Castle Fiber LLC
- Type
- Internet provider
- Registered
- Jun 24, 2013
- Domain
- zayo.com
- Website
- www.crowncastle.com/
- Industry
- Computer and Information Technology
- Spamhaus ASN-DROP
- not listed
Routing timeline
Covering aggregate above, the prefix's own history below
Summary
Routing history
- Pattern
- Stable
- First seen
- May 2017
- Current origin since
- May 2017 · 9.5 yr
- Origin networks
- 1
IRR
Route objects on the exact prefix
| Origin | Registry | Description | Maintainer | Modified |
|---|---|---|---|---|
| AS33313 | RADB | Wilcon | MAINT-AS27506 | May 23, 2025 |
Whois
Registration for this announcement
- Range
- 38.
91. 120. 0/ 21 - Netname
- WILCON-CGNT-NET-3
- Registrant
- Wilcon
- Organization
- Wilcon (WCL-96)
- Org address
- 1805 29th Street, Suite 2050, Boulder, CO, 80301
- Org country
- US
- Type
- Reallocated
- Handle
- NET-38-91-120-0-1
- Parent
- NET-38-0-0-0-1
- Created
- Jul 17, 2018
- RIR
- ARIN
- Country
- US
- Delegated
- Apr 16, 1991
- Status
- assigned
Report abuse
Abuse contact
- abuse@
zayo. com - Name
- Abuse
- Phone
- +1-866-236-2824
- Handle
- ABUSE5675-ARIN