Data as of Nov 3, 2026
131.75.0.0/16
No anonymizer space · no proxy exits in 30 daysUnited States Department of Defense (DoD)
Announcements
Nesting
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Announcements inside
| Prefix | Origin | Type | Holder | RPKI |
|---|---|---|---|---|
| 131.75.6.0/24 since May 2018 | AS27046 | Business | United States Department of Defense (DoD) via DoD Network Information Center | |
| 131.75.7.0/24 since May 2018 | AS27046 | Business | United States Department of Defense (DoD) via DoD Network Information Center | |
| 131.75.11.0/24 since Aug 2014 | AS27046 | Business | United States Department of Defense (DoD) via DoD Network Information Center | |
| 131.75.14.0/24 since Apr 2019 | AS27046 | Business | United States Department of Defense (DoD) via DoD Network Information Center | |
| 131.75.19.0/24 since Oct 2016 | AS27046 | Business | United States Department of Defense (DoD) via DoD Network Information Center | |
| 131.75.20.0/24 since Oct 2016 | AS27046 | Business | United States Department of Defense (DoD) via DoD Network Information Center | |
| 131.75.21.0/24 since Oct 2016 | AS27046 | Business | United States Department of Defense (DoD) via DoD Network Information Center | |
| 131.75.23.0/24 since Mar 2019 | AS27046 | Business | United States Department of Defense (DoD) via DoD Network Information Center | |
| 131.75.24.0/23 since Oct 2016 | AS27046 | Business | United States Department of Defense (DoD) via DoD Network Information Center | |
| 131.75.26.0/23 since Oct 2016 | AS27046 | Business | United States Department of Defense (DoD) via DoD Network Information Center | |
| 131.75.28.0/22 since Oct 2016 | AS27046 | Business | United States Department of Defense (DoD) via DoD Network Information Center | |
| 131.75.34.0/24 since Apr 2019 | AS27046 | Business | United States Department of Defense (DoD) via DoD Network Information Center | |
| 131.75.45.0/24 since Apr 2019 | AS27046 | Business | United States Department of Defense (DoD) via DoD Network Information Center | |
| 131.75.47.0/24 since Apr 2019 | AS27046 | Business | United States Department of Defense (DoD) via DoD Network Information Center | |
| 131.75.50.0/24 since Aug 2016 | AS27046 | Business | United States Department of Defense (DoD) via DoD Network Information Center | |
| 131.75.51.0/24 since May 2024 | AS27046 | Business | United States Department of Defense (DoD) via DoD Network Information Center | |
| 131.75.52.0/23 since Jun 2023 | AS27046 | Business | United States Department of Defense (DoD) via DoD Network Information Center | |
| 131.75.54.0/24 since Aug 2016 | AS27046 | Business | United States Department of Defense (DoD) via DoD Network Information Center | |
| 131.75.56.0/24 since Aug 2016 | AS27046 | Business | United States Department of Defense (DoD) via DoD Network Information Center | |
| 131.75.62.0/24 since Dec 2017 | AS27046 | Business | United States Department of Defense (DoD) via DoD Network Information Center | |
| 131.75.66.0/24 since Apr 2019 | AS27046 | Business | United States Department of Defense (DoD) via DoD Network Information Center | |
| 131.75.73.0/24 since Jan 2021 | AS27046 | Business | United States Department of Defense (DoD) via DoD Network Information Center | |
| 131.75.81.0/24 since Apr 2019 | AS27046 | Business | United States Department of Defense (DoD) via DoD Network Information Center | |
| 131.75.82.0/23 since Apr 2019 | AS27046 | Business | United States Department of Defense (DoD) via DoD Network Information Center | |
| 131.75.86.0/24 since Apr 2019 | AS27046 | Business | United States Department of Defense (DoD) via DoD Network Information Center | |
| 131.75.88.0/23 since Apr 2019 | AS27046 | Business | United States Department of Defense (DoD) via DoD Network Information Center | |
| 131.75.96.0/24 since Nov 2021 | AS27046 | Business | United States Department of Defense (DoD) via DoD Network Information Center | |
| 131.75.97.0/24 since Nov 2021 | AS27046 | Business | United States Department of Defense (DoD) via DoD Network Information Center | |
| 131.75.100.0/23 since Apr 2019 | AS27046 | Business | United States Department of Defense (DoD) via DoD Network Information Center | |
| 131.75.102.0/23 since Sep 2024 | AS27046 | Business | United States Department of Defense (DoD) via DoD Network Information Center | |
| 131.75.107.0/24 since Oct 2016 | AS27046 | Business | United States Department of Defense (DoD) via DoD Network Information Center | |
| 131.75.108.0/24 since Dec 2020 | AS27046 | Business | United States Department of Defense (DoD) via DoD Network Information Center | |
| 131.75.109.0/24 since Dec 2020 | AS27046 | Business | United States Department of Defense (DoD) via DoD Network Information Center | |
| 131.75.111.0/24 since Apr 2022 | AS27046 | Business | United States Department of Defense (DoD) via DoD Network Information Center | |
| 131.75.112.0/24 since Jun 2024 | AS27046 | Business | United States Department of Defense (DoD) via DoD Network Information Center | |
| 131.75.120.0/24 since Apr 2019 | AS27046 | Business | United States Department of Defense (DoD) via DoD Network Information Center | |
| 131.75.122.0/24 since Jun 2022 | AS27046 | Business | United States Department of Defense (DoD) via DoD Network Information Center | |
| 131.75.125.0/24 since Apr 2019 | AS27046 | Business | United States Department of Defense (DoD) via DoD Network Information Center | |
| 131.75.140.0/24 since Apr 2019 | AS27046 | Business | United States Department of Defense (DoD) via DoD Network Information Center | |
| 131.75.141.0/24 since Feb 2026 | AS27046 | Business | United States Department of Defense (DoD) via DoD Network Information Center | |
| 131.75.142.0/23 since Apr 2019 | AS27046 | Business | United States Department of Defense (DoD) via DoD Network Information Center | |
| 131.75.144.0/24 since Dec 2020 | AS27046 | Business | United States Department of Defense (DoD) via DoD Network Information Center | |
| 131.75.146.0/24 since Oct 2016 | AS27046 | Business | United States Department of Defense (DoD) via DoD Network Information Center | |
| 131.75.148.0/22 since Apr 2019 | AS27046 | Business | United States Department of Defense (DoD) via DoD Network Information Center | |
| 131.75.154.0/23 since Apr 2019 | AS27046 | Business | United States Department of Defense (DoD) via DoD Network Information Center | |
| 131.75.156.0/24 since Apr 2019 | AS27046 | Business | United States Department of Defense (DoD) via DoD Network Information Center | |
| 131.75.158.0/23 since Jan 2024 | AS27046 | Business | United States Department of Defense (DoD) via DoD Network Information Center | |
| 131.75.165.0/24 since Apr 2019 | AS27046 | Business | United States Department of Defense (DoD) via DoD Network Information Center | |
| 131.75.170.0/24 since Aug 2016 | AS27046 | Business | United States Department of Defense (DoD) via DoD Network Information Center | |
| 131.75.171.0/24 since Aug 2016 | AS27046 | Business | United States Department of Defense (DoD) via DoD Network Information Center | |
| 131.75.172.0/22 since Aug 2016 | AS27046 | Business | United States Department of Defense (DoD) via DoD Network Information Center | |
| 131.75.178.0/24 since Nov 2021 | AS27046 | Business | United States Department of Defense (DoD) via DoD Network Information Center | |
| 131.75.180.0/24 since Jul 2021 | AS27046 | Business | United States Department of Defense (DoD) via DoD Network Information Center | |
| 131.75.182.0/23 since Jan 2014 | AS27046 | Business | United States Department of Defense (DoD) via DoD Network Information Center | |
| 131.75.184.0/24 since Feb 2025 | AS27046 | Business | United States Department of Defense (DoD) via DoD Network Information Center | |
| 131.75.193.0/24 since Jul 2018 | AS27046 | Business | United States Department of Defense (DoD) via DoD Network Information Center | |
| 131.75.197.0/24 since Nov 2021 | AS27046 | Business | United States Department of Defense (DoD) via DoD Network Information Center | |
| 131.75.198.0/23 since Apr 2019 | AS27046 | Business | United States Department of Defense (DoD) via DoD Network Information Center | |
| 131.75.203.0/24 since May 2005 | AS27046 | Business | United States Department of Defense (DoD) via DoD Network Information Center | |
| 131.75.205.0/24 since May 2005 | AS27046 | Business | United States Department of Defense (DoD) via DoD Network Information Center | |
| 131.75.207.0/24 since Sep 2016 | AS27046 | Business | United States Department of Defense (DoD) via DoD Network Information Center | |
| 131.75.208.0/24 since Mar 2022 | AS27046 | Business | United States Department of Defense (DoD) via DoD Network Information Center | |
| 131.75.211.0/24 since Feb 2021 | AS27046 | Business | United States Department of Defense (DoD) via DoD Network Information Center | |
| 131.75.212.0/24 since Jan 2021 | AS27046 | Business | United States Department of Defense (DoD) via DoD Network Information Center | |
| 131.75.214.0/23 since Jan 2021 | AS27046 | Business | United States Department of Defense (DoD) via DoD Network Information Center | |
| 131.75.216.0/23 since Apr 2019 | AS27046 | Business | United States Department of Defense (DoD) via DoD Network Information Center | |
| 131.75.226.0/23 since Apr 2019 | AS27046 | Business | United States Department of Defense (DoD) via DoD Network Information Center | |
| 131.75.228.0/23 since Apr 2019 | AS27046 | Business | United States Department of Defense (DoD) via DoD Network Information Center | |
| 131.75.235.0/24 since Jun 2005 | AS27046 | Business | United States Department of Defense (DoD) via DoD Network Information Center | |
| 131.75.238.0/24 since Sep 2016 | AS27046 | Business | United States Department of Defense (DoD) via DoD Network Information Center | |
| 131.75.239.0/24 since Sep 2016 | AS27046 | Business | United States Department of Defense (DoD) via DoD Network Information Center | |
| 131.75.243.0/24 since Apr 2019 | AS27046 | Business | United States Department of Defense (DoD) via DoD Network Information Center | |
| 131.75.245.0/24 since May 2020 | AS27046 | Business | United States Department of Defense (DoD) via DoD Network Information Center | |
| 131.75.252.0/23 since Nov 2024 | AS27046 | Business | United States Department of Defense (DoD) via DoD Network Information Center |
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 |
|---|---|---|---|---|---|---|
| 131.75.0.0/16 | 65,536 | DDC-MECH | United States Department of Defense (DoD) (USDDD) · US | Direct Allocation | Oct 25, 1988 | [email protected] |
| └ 131.75.0.0/16 | 65,536 | DDC-MECH | DoD Network Information Center (DNIC) · US | Reallocated | Aug 28, 2025 | [email protected] |
Network & registry
Announced by
Covering announcement 131.74.0.0/15
- Prefix
- 131.74.0.0/15
- Announced by
- AS721 United States Department of Defense (DoD)
- Type
- Business
- RPKI
- No RPKI
- RIR
- ARIN
Registry
Holder
- Organization
- Not stated by the registry
Origin network
AS721
US
- Name
- United States Department of Defense (DoD)
- Type
- Business
- Domain
- mail.mil
- Industry
- Internet Service Provider (ISP)
- Spamhaus ASN-DROP
- not listed
Routing timeline
Who has announced 131.74.0.0/15
131.74.0.0/15
Routing history
- Pattern
- Stable
- First seen
- Jun 2007
- Current origin since
- Dec 2010 · 16 yr
- Origin networks
- 2
- Last change of origin
- Dec 2010
Recorded history
History
- Handoffs
- 2
Whois
Registration for this announcement
131.74.0.0/15 spans several registrations: 4 records are listed under Registrations.
- RIR
- ARIN
- Country
- US
- Delegated
- May 23, 1996
- Status
- assigned