Data as of Nov 12, 2026
131.74.0.0/15
No anonymizer spaceUnited States Department of Defense (DoD)
Announcements
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Announcements inside
| Prefix | Origin | Type | Holder | RPKI |
|---|---|---|---|---|
| 131.74.12.0/24 since Aug 2021 | AS27046 | Business | United States Department of Defense (DoD) via DoD Network Information Center | |
| 131.74.16.0/22 since Nov 2019 | AS27046 | Business | United States Department of Defense (DoD) via DoD Network Information Center | |
| 131.74.20.0/22 since Jan 2022 | AS27046 | Business | United States Department of Defense (DoD) via DoD Network Information Center | |
| 131.74.24.0/23 since Nov 2019 | AS27046 | Business | United States Department of Defense (DoD) via DoD Network Information Center | |
| 131.74.32.0/22 since Jul 2021 | AS27046 | Business | United States Department of Defense (DoD) via DoD Network Information Center | |
| 131.74.36.0/22 since Jul 2021 | AS27046 | Business | United States Department of Defense (DoD) via DoD Network Information Center | |
| 131.74.48.0/22 since Jul 2021 | AS27046 | Business | United States Department of Defense (DoD) via DoD Network Information Center | |
| 131.74.52.0/24 since Jul 2021 | AS27046 | Business | United States Department of Defense (DoD) via DoD Network Information Center | |
| 131.74.58.0/24 since Jul 2021 | AS27046 | Business | United States Department of Defense (DoD) via DoD Network Information Center | |
| 131.74.62.0/24 since Aug 2020 | AS27046 | Business | United States Department of Defense (DoD) via DoD Network Information Center | |
| 131.74.64.0/22 since Aug 2021 | AS27046 | Business | United States Department of Defense (DoD) via DoD Network Information Center | |
| 131.74.68.0/22 since Aug 2021 | AS27046 | Business | United States Department of Defense (DoD) via DoD Network Information Center | |
| 131.74.72.0/22 since Aug 2021 | AS27046 | Business | United States Department of Defense (DoD) via DoD Network Information Center | |
| 131.74.76.0/22 since Aug 2021 | AS27046 | Business | United States Department of Defense (DoD) via DoD Network Information Center | |
| 131.74.80.0/22 since Aug 2021 | AS27046 | Business | United States Department of Defense (DoD) via DoD Network Information Center | |
| 131.74.84.0/22 since Aug 2021 | AS27046 | Business | United States Department of Defense (DoD) via DoD Network Information Center | |
| 131.74.88.0/22 since Aug 2021 | AS27046 | Business | United States Department of Defense (DoD) via DoD Network Information Center | |
| 131.74.92.0/22 since Aug 2021 | AS27046 | Business | United States Department of Defense (DoD) via DoD Network Information Center | |
| 131.74.96.0/22 since Aug 2021 | AS27046 | Business | United States Department of Defense (DoD) via DoD Network Information Center | |
| 131.74.110.0/24 since Aug 2021 | AS27046 | Business | United States Department of Defense (DoD) via DoD Network Information Center | |
| 131.74.111.0/24 since Aug 2021 | AS27046 | Business | United States Department of Defense (DoD) via DoD Network Information Center | |
| 131.74.118.0/24 since Jul 2021 | AS27046 | Business | United States Department of Defense (DoD) via DoD Network Information Center | |
| 131.74.121.0/24 since Aug 2021 | AS27046 | Business | United States Department of Defense (DoD) via DoD Network Information Center | |
| 131.74.124.0/24 since Aug 2021 | AS27046 | Business | United States Department of Defense (DoD) via DoD Network Information Center | |
| 131.74.156.0/23 since Sep 2025 | AS27046 | Business | United States Department of Defense (DoD) via DoD Network Information Center | |
| 131.74.158.0/23 since Sep 2025 | AS27046 | Business | United States Department of Defense (DoD) via DoD Network Information Center | |
| 131.74.160.0/21 since Mar 2018 | AS27046 | Business | United States Department of Defense (DoD) via DoD Network Information Center | |
| 131.74.168.0/22 since Mar 2018 | AS27046 | Business | United States Department of Defense (DoD) via DoD Network Information Center | |
| 131.74.172.0/22 since Mar 2018 | AS27046 | Business | United States Department of Defense (DoD) via DoD Network Information Center | |
| 131.74.176.0/21 since Apr 2018 | AS27046 | Business | United States Department of Defense (DoD) via DoD Network Information Center | |
| 131.74.184.0/22 since Apr 2018 | AS27046 | Business | United States Department of Defense (DoD) via DoD Network Information Center | |
| 131.74.188.0/22 since Apr 2018 | AS27046 | Business | United States Department of Defense (DoD) via DoD Network Information Center | |
| 131.74.194.0/23 since Sep 2024 | AS27046 | Business | United States Department of Defense (DoD) via DoD Network Information Center | |
| 131.74.208.0/22 since Jul 2021 | AS27046 | Business | United States Department of Defense (DoD) via DoD Network Information Center | |
| 131.74.224.0/22 since Aug 2021 | AS27046 | Business | United States Department of Defense (DoD) via DoD Network Information Center | |
| 131.74.228.0/22 since Aug 2021 | AS27046 | Business | United States Department of Defense (DoD) via DoD Network Information Center | |
| 131.74.240.0/22 since Aug 2021 | AS27046 | Business | United States Department of Defense (DoD) via DoD Network Information Center | |
| 131.74.248.0/23 since Jun 2021 | AS27046 | Business | United States Department of Defense (DoD) via DoD Network Information Center | |
| 131.74.252.0/24 since Aug 2021 | AS27046 | Business | United States Department of Defense (DoD) via DoD Network Information Center | |
| 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 the announcement: those covering it, widest first, then every record inside it, under its parent.
| Range | Addresses | Netname | Holder | Type | Created | Abuse contact |
|---|---|---|---|---|---|---|
| 131.74.0.0/16 | 65,536 | DSCC | United States Department of Defense (DoD) (USDDD) · US | Direct Allocation | May 23, 1996 | disa. |
| └ 131.74.0.0/16 | 65,536 | DSCC | DoD Network Information Center (DNIC) · US | Reallocated | Aug 28, 2025 | disa. |
| 131.75.0.0/16 | 65,536 | DDC-MECH | United States Department of Defense (DoD) (USDDD) · US | Direct Allocation | Oct 25, 1988 | disa. |
| └ 131.75.0.0/16 | 65,536 | DDC-MECH | DoD Network Information Center (DNIC) · US | Reallocated | Aug 28, 2025 | disa. |
Network & registry
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 this prefix
Summary
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
IRR inside
Route objects inside
| Prefix | Origin | Registry | Description | Maintainer | Modified |
|---|---|---|---|---|---|
| 131.75.52.0/22 | AS273474 | RADB | AS-ATE-CUSTOMER-273474 | MAINT-AS267613 | May 22, 2024 |
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