Data as of Nov 3, 2026
137.0.0.0/13
No anonymizer spaceUnited States Department of Defense (DoD)
Announcements
Nesting
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Sized by addresses, colored by each announcement's type. Click a tile with children to zoom in, a leaf to open it.
More specific
Announcements inside
| Prefix | Origin | Type | Holder | RPKI |
|---|---|---|---|---|
| 137.0.0.0/16 since Dec 2024 | AS391 | Business | United States Department of Defense (DoD) via Air Force Systems Networking | |
| 137.1.0.0/16 since Jul 2024 | AS56 | Business | United States Department of Defense (DoD) via Air Force Systems Networking | |
| 137.2.0.0/20 since Sep 2025 | AS56 | Business | United States Department of Defense (DoD) via Air Force Systems Networking | |
| 137.2.16.0/20 since Sep 2025 | AS56 | Business | United States Department of Defense (DoD) via Air Force Systems Networking | |
| 137.2.32.0/20 since Sep 2025 | AS56 | Business | United States Department of Defense (DoD) via Air Force Systems Networking | |
| 137.2.48.0/20 since Sep 2025 | AS56 | Business | United States Department of Defense (DoD) via Air Force Systems Networking | |
| 137.2.64.0/20 since Sep 2025 | AS56 | Business | United States Department of Defense (DoD) via Air Force Systems Networking | |
| 137.2.80.0/21 since Sep 2025 | AS56 | Business | United States Department of Defense (DoD) via Air Force Systems Networking | |
| 137.2.112.0/20 since Sep 2025 | AS56 | Business | United States Department of Defense (DoD) via Air Force Systems Networking | |
| 137.2.128.0/18 since Sep 2025 | AS56 | Business | United States Department of Defense (DoD) via Air Force Systems Networking | |
| 137.3.0.0/16 since Aug 2025 | AS56 | Business | United States Department of Defense (DoD) via Air Force Systems Networking | |
| 137.3.120.0/24 since Dec 2025 | AS56 | Business | United States Department of Defense (DoD) via Air Force Systems Networking | |
| 137.4.0.0/16 since Sep 2025 | AS56 | Business | United States Department of Defense (DoD) via Air Force Systems Networking | |
| 137.4.120.0/24 since Feb 2026 | AS56 | Business | United States Department of Defense (DoD) via Air Force Systems Networking | |
| 137.6.0.0/20 since Sep 2025 | AS56 | Business | United States Department of Defense (DoD) via Air Force Systems Networking | |
| 137.6.16.0/20 since Sep 2025 | AS56 | Business | United States Department of Defense (DoD) via Air Force Systems Networking | |
| 137.6.32.0/20 since Sep 2025 | AS56 | Business | United States Department of Defense (DoD) via Air Force Systems Networking | |
| 137.6.48.0/20 since Sep 2025 | AS56 | Business | United States Department of Defense (DoD) via Air Force Systems Networking | |
| 137.6.64.0/20 since Sep 2025 | AS56 | Business | United States Department of Defense (DoD) via Air Force Systems Networking | |
| 137.6.80.0/20 since Sep 2025 | AS56 | Business | United States Department of Defense (DoD) via Air Force Systems Networking | |
| 137.6.96.0/20 since Sep 2025 | AS56 | Business | United States Department of Defense (DoD) via Air Force Systems Networking | |
| 137.6.112.0/20 since Sep 2025 | AS56 | Business | United States Department of Defense (DoD) via Air Force Systems Networking | |
| 137.6.128.0/20 since Sep 2025 | AS56 | Business | United States Department of Defense (DoD) via Air Force Systems Networking | |
| 137.6.144.0/20 since Sep 2025 | AS56 | Business | United States Department of Defense (DoD) via Air Force Systems Networking | |
| 137.6.160.0/20 since Sep 2025 | AS56 | Business | United States Department of Defense (DoD) via Air Force Systems Networking | |
| 137.6.176.0/20 since Sep 2025 | AS56 | Business | United States Department of Defense (DoD) via Air Force Systems Networking | |
| 137.6.192.0/20 since Sep 2025 | AS56 | Business | United States Department of Defense (DoD) via Air Force Systems Networking | |
| 137.6.208.0/20 since Sep 2025 | AS56 | Business | United States Department of Defense (DoD) via Air Force Systems Networking | |
| 137.7.0.0/16 since Aug 2025 | AS56 | Business | United States Department of Defense (DoD) via Air Force Systems Networking |
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 |
|---|---|---|---|---|---|---|
| 137.0.0.0/16 | 65,536 | AF-AFMC-AFSN-137-0 | United States Department of Defense (DoD) (USDDD) · US | Direct Allocation | Nov 1, 1989 | [email protected] |
| └ 137.0.0.0/16 | 65,536 | AF-AFMC-AFSN-137-0 | Air Force Systems Networking (7ESG) · US | Reallocated | Aug 19, 2025 | [email protected] |
| 137.1.0.0/16 | 65,536 | WHITEMAN-NET | United States Department of Defense (DoD) (USDDD) · US | Direct Allocation | Nov 1, 1989 | [email protected] |
| └ 137.1.0.0/16 | 65,536 | WHITEMAN-NET | Air Force Systems Networking (7ESG) · US | Reallocated | Aug 19, 2025 | [email protected] |
| 137.2.0.0/16 | 65,536 | AF-AFMC-AFSN-137-2AF-AFMC-HNIB-EURAMVPN | United States Department of Defense (DoD) (USDDD) · US | Direct Allocation | Nov 1, 1989 | [email protected] |
| └ 137.2.0.0/16 | 65,536 | AF-AFMC-AFSN-137-2AF-AFMC-HNIB-EURAMVPN | Air Force Systems Networking (7ESG) · US | Reallocated | Aug 19, 2025 | [email protected] |
| 137.3.0.0/16 | 65,536 | LITTLEROCK1-NET | United States Department of Defense (DoD) (USDDD) · US | Direct Allocation | Nov 1, 1989 | [email protected] |
| └ 137.3.0.0/16 | 65,536 | LITTLEROCK1-NET | Air Force Systems Networking (7ESG) · US | Reallocated | Aug 19, 2025 | [email protected] |
| 137.4.0.0/16 | 65,536 | CHARLESTON | United States Department of Defense (DoD) (USDDD) · US | Direct Allocation | Feb 14, 1997 | [email protected] |
| └ 137.4.0.0/16 | 65,536 | CHARLESTON | Air Force Systems Networking (7ESG) · US | Reallocated | Aug 19, 2025 | [email protected] |
| 137.5.0.0/16 | 65,536 | ONIZUKA-NET | unknown | — | — | — |
| └ 137.5.0.0/16 | 65,536 | ONIZUKA-NET | Air Force Systems Networking (7ESG) · US | Allocation | Aug 19, 2025 | [email protected] |
| 137.6.0.0/16 | 65,536 | AF-AFMC-AFSN-137-6 | United States Department of Defense (DoD) (USDDD) · US | Direct Allocation | Mar 28, 1989 | [email protected] |
| └ 137.6.0.0/16 | 65,536 | AF-AFMC-AFSN-137-6 | Air Force Systems Networking (7ESG) · US | Reallocated | Aug 19, 2025 | [email protected] |
| 137.7.0.0/16 | 65,536 | WHMC-NET | United States Department of Defense (DoD) (USDDD) · US | Direct Allocation | Mar 28, 1989 | [email protected] |
| └ 137.7.0.0/16 | 65,536 | WHMC-NET | Air Force Systems Networking (7ESG) · US | Reallocated | Aug 19, 2025 | [email protected] |
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
- May 2005
- 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
137.0.0.0/13 spans several registrations: 16 records are listed under Registrations.
- RIR
- ARIN
- Country
- US
- Delegated
- Nov 1, 1989
- Status
- assigned