Data as of Nov 15, 2026
38.15.136.0/21
No anonymizer space · no proxy exits in 30 daysB2 Net Solutions Inc. · 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) | 399,898 75,255 always on | Cogent Communications, LLC |
More specific
Announcements inside
| Prefix | Origin | Type | Holder | RPKI |
|---|---|---|---|---|
| 38.15.136.0/22 since Sep 2025 | AS55286 | Hosting | Cogent Communications, LLC via B2 Net Solutions Inc. | |
| 38.15.140.0/24 since Sep 2025 | AS55286 | Hosting | Cogent Communications, LLC via B2 Net Solutions Inc. | |
| 38.15.141.0/24 since Dec 2024 | AS55286 | Hosting | Cogent Communications, LLC via B2 Net Solutions Inc. | |
| 38.15.142.0/23 since Sep 2025 | AS55286 | Hosting | Cogent Communications, LLC via B2 Net Solutions Inc. |
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 |
|---|---|---|---|---|---|---|
| 38.0.0.0/8 | 16,777,216 | COGENT-A | Cogent Communications, LLC (COGC) · US | Direct Allocation | Apr 16, 1991 | abuse@ |
| └ 38.15.128.0/19 | 8,192 | SRVR-CGNT-NET-2 | B2 Net Solutions Inc. (BNS-34) · US | Reallocated | Aug 2, 2021 | abuse-system@ |
Network & registry
Announced by
Covering announcement 38.15.128.0/20
- Prefix
- 38.15.128.0/20
- Announced by
- AS55286 B2 Net Solutions Inc.
- Type
- Hosting
- RPKI
- No RPKI
- Netname
- SRVR-CGNT-NET-2
- Registrant
- B2 Net Solutions Inc.
- RIR
- ARIN
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
- B2 Net Solutions Inc. (BNS-34)
- Reallocated range
- 38.
15. 128. 0/ 19 - Reallocated
- Aug 2, 2021
Origin network
AS55286
US
- Name
- B2 Net Solutions Inc.
- Type
- Hosting
- Registered
- May 16, 2013
- Domain
- servermania.com
- Website
- www.servermania.com
- Industry
- Computer and Information Technology
- Spamhaus ASN-DROP
- not listed
- VPN servers
- 19
Routing timeline
Covering aggregate above, the prefix's own history below
38.15.128.0/20
Routing history
- Pattern
- Stable
- First seen
- Aug 2021
- Current origin since
- Aug 2021 · 5.3 yr
- Origin networks
- 1
IRR
Route objects on 38.15.128.0/20
| Origin | Registry | Description | Maintainer | Modified |
|---|---|---|---|---|
| AS55286 | RADB | Servermania Inc | MAINT-AS55286 | Nov 13, 2023 |
Whois
Registration for this announcement
- Range
- 38.
15. 128. 0/ 19 - Netname
- SRVR-CGNT-NET-2
- Registrant
- B2 Net Solutions Inc.
- Organization
- B2 Net Solutions Inc. (BNS-34)
- Org address
- 3626 Oak Lawn Ave. STE 610, Dallas, TX, 75219
- Org country
- US
- Type
- Reallocated
- Handle
- NET-38-15-128-0-1
- Parent
- NET-38-0-0-0-1
- Created
- Aug 2, 2021
- RIR
- ARIN
- Country
- US
- Delegated
- Apr 16, 1991
- Status
- assigned
Report abuse
Abuse contact
- abuse-system@
servermania. com - Name
- Network Operations Center
- Phone
- +1-716-745-4678
- Handle
- NOC33347-ARIN