AS26810 — HHSNET-NOC-ASN
AS26810 announces 46 IPv4 prefixes covering 298,496 addresses and 3 IPv6 prefixes.
About this network
The AS handle HHSNET-NOC-ASN is held by U.S. Dept. of Health and Human Services.
What it's used for
- The address space carries internal government infrastructure, evidenced by netnames such as NET-HHS1, NET-HHS2, NET-HHS3, NET-HHS5, and NET-HHS7 registered to the U.S. Dept. of Health and Human Services.
- With 298496 IPv4 addresses announced across 63 prefixes and only 1 observed neighbour, the inventory represents a finely subdivided internal corporate estate rather than an access or transit network.
Notable
- All registrants for the largest prefixes agree with the announcer, consistently listing the U.S. Dept. of Health and Human Services.
- The address inventory consists of large /17 blocks in the 158.70.0.0/16 and 162.99.0.0/16 ranges, further subdivided into /18, /19, /20, and /21 prefixes, indicating site-by-site segmentation within the department.
This description is AI-generated, best-effort context — not authoritative, and provided without any guarantee of accuracy.
Announced prefixes
- 158.70.0.0/21
- 158.70.16.0/23
- 158.70.22.0/23
- 158.70.30.0/23
- 158.70.32.0/24
- 158.70.44.0/22
- 158.70.48.0/20
- 158.70.64.0/19
- 158.70.96.0/20
- 158.70.112.0/24
- 158.70.114.0/23
- 158.70.116.0/22
- 158.70.120.0/21
- 158.70.140.0/22
- 158.70.144.0/23
- 158.70.148.0/22
- 158.70.152.0/21
- 158.70.160.0/21
- 158.70.168.0/22
- 158.70.172.0/23
- 158.70.175.0/24
- 158.70.176.0/20
- 158.70.192.0/18
- 158.71.0.0/17
- 158.71.132.0/22
- 158.71.141.0/24
- 158.71.142.0/23
- 158.71.144.0/20
- 158.71.160.0/19
- 158.71.192.0/19
- 158.71.225.0/24
- 158.72.0.0/16
- 158.74.0.0/19
- 158.74.32.0/22
- 158.74.36.0/23
- 158.74.39.0/24
- 158.74.40.0/21
- 158.74.48.0/20
- 158.74.64.0/18
- 158.74.128.0/17
- 162.99.0.0/17
- 162.99.128.0/18
- 162.99.192.0/19
- 198.102.218.0/24
- 198.179.0.0/23
- 198.179.2.0/24
- 2601:9600::/24
- 2607:f220::/44
- 2607:f220:600::/44
Upstream networks
- AS19050 U.S. Department of Health & Human Services
Adjacent networks
- AS19050 U.S. Department of Health & Human Services
BGP / ASN / CIDR
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IPv4
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IPv6
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Search Results
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