AS1554 — DNIC-ASBLK-01550-01601
AS1554 announces 17 IPv4 prefixes covering 233,728 addresses and 0 IPv6 prefixes.
About this network
An early US Department of Defense allocation from the block DNIC-ASBLK-01550-01601, registered to the DoD Network Information Center (DNIC).
What it's used for
- US government / military network operations. The generic DNIC block registration doesn't name a specific base or unit.
Notable
- A government / DoD network, not a commercial ISP or host. It sits in a contiguous block of low-numbered ASNs (01550–01601) held by the DoD Network Information Center.
- The low AS number reflects an allocation from the internet's earliest years, handed out roughly sequentially.
This description is AI-generated, best-effort context — not authoritative, and provided without any guarantee of accuracy.
Announced prefixes
- 6.64.1.0/24
- 6.127.0.0/16
- 136.207.128.0/17
- 136.210.0.0/17
- 136.210.128.0/18
- 136.210.192.0/19
- 136.210.240.0/21
- 136.210.248.0/24
- 136.210.250.0/23
- 136.210.252.0/22
- 136.215.128.0/17
- 155.155.16.0/20
- 155.155.48.0/20
- 155.155.64.0/18
- 155.155.128.0/19
- 155.155.224.0/19
- 206.39.28.0/24
Upstream networks
- AS367 United States Department of Defense (DoD)
Downstream networks
- AS1561 United States Department of Defense (DoD)
- AS1556 United States Department of Defense (DoD)
- AS1585 United States Department of Defense (DoD)
- AS1580 United States Department of Defense (DoD)
- AS1555 United States Department of Defense (DoD)
- AS1567 United States Department of Defense (DoD)
- AS1559 United States Department of Defense (DoD)
- AS1563 United States Department of Defense (DoD)
- AS1562 United States Department of Defense (DoD)
- AS1565 United States Department of Defense (DoD)
- AS1568 United States Department of Defense (DoD)
Adjacent networks
- AS367 United States Department of Defense (DoD)
- AS1555 United States Department of Defense (DoD)
- AS1561 United States Department of Defense (DoD)
- AS1556 United States Department of Defense (DoD)
- AS1585 United States Department of Defense (DoD)
- AS1580 United States Department of Defense (DoD)
- AS1567 United States Department of Defense (DoD)
- AS1563 United States Department of Defense (DoD)
- AS1559 United States Department of Defense (DoD)
- AS1562 United States Department of Defense (DoD)
- AS1565 United States Department of Defense (DoD)
- AS1568 United States Department of Defense (DoD)
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IPv4 Prefixes
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IPv6 Prefixes
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Total Prefixes
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Unique /24s
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⚠ SUSPICIOUS PREFIX ANNOUNCEMENTS DETECTED