Data as of Nov 6, 2026
38.148.4.0/22
No anonymizer space · no proxy exits in 30 daysSumofiber · reallocated from 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) | 405,043 77,969 always on | Cogent Communications, LLC |
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@ |
| └ 38.148.0.0/17 | 32,768 | SUMOFIBER-NET-38-148-0-0-1 | Sumofiber (CL-64) · US | Reallocated | Apr 6, 2023 | abuse@ |
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
- Sumofiber (CL-64)
- Reallocated range
- 38.
148. 0. 0/ 17 - Reallocated
- Apr 6, 2023
Origin network
AS4226
US
- Name
- Sumofiber
- Type
- Internet provider
- Registered
- Mar 19, 2024
- Domain
- sumofiber.com
- Website
- sumofiber.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
- Sep 2025
- Current origin since
- Sep 2025 · 1.1 yr
- Origin networks
- 1
Whois
Registration for this announcement
- Range
- 38.
148. 0. 0/ 17 - Netname
- SUMOFIBER-NET-38-148-0-0-1
- Registrant
- Sumofiber
- Organization
- Sumofiber (CL-64)
- Org address
- 505 w 2600 s, Bountiful, UT, 84010
- Org country
- US
- Type
- Reallocated
- Handle
- NET-38-148-0-0-1
- Parent
- NET-38-0-0-0-1
- Created
- Apr 6, 2023
- RIR
- ARIN
- Country
- US
- Delegated
- Apr 16, 1991
- Status
- assigned
Report abuse
Abuse contact
- abuse@
sumofiber. com - Name
- ABUSE
- Phone
- +1-801-320-1000
- Handle
- ABUSE9078-ARIN