U.S. Dept. of Health and Human Services

Data as of 2026-07-26
BGP inherited
Cluster stats
Netblocks25 · 394,752 IPv4 addresses
IPv6 3 prefixes (largest 2601:9600::/24)
All fragments 29 blocks across 2 clusters
Cluster ID213593718
RegistryBGP
Customersfind customers using this network →
Evidence & provenance ?
Attribution BGP parent (inherited)
Shared handles clustered on 14 shared RIR contact/maintainer handles
Registry names 2 distinct registrant names across these blocks
full provenance (JSON) → · how attribution works · report an issue

Footprint over time

6 weekly snapshots · JSON
28 +5 netblocks since 2026-07-05
2026-07-05 peak 28 2026-07-26

IP Ranges (25)

⬇ export CSV
CIDR Org name Registry Status Confidence
158.70.0.0/16 U.S. Dept. of Health and Human Services BGP ANNOUNCED ● high
158.70.144.0/24 U.S. Dept. of Health and Human Services BGP ANNOUNCED ● high
158.71.0.0/17 U.S. Dept. of Health and Human Services BGP ANNOUNCED ● high
158.71.128.0/18 U.S. Dept. of Health and Human Services BGP ANNOUNCED ● high
158.71.192.0/24 U.S. Dept. of Health and Human Services BGP ANNOUNCED ● high
158.71.192.0/19 U.S. Dept. of Health and Human Services BGP ANNOUNCED ● high
158.71.225.0/24 U.S. Dept. of Health and Human Services BGP ANNOUNCED ● high
158.72.0.0/16 U.S. Dept. of Health and Human Services BGP ANNOUNCED ● high
158.72.139.0/24 U.S. Dept. of Health and Human Services BGP ANNOUNCED ● high
158.74.0.0/16 U.S. Dept. of Health and Human Services BGP ANNOUNCED ● high
158.74.30.0/24 U.S. Dept. of Health and Human Services BGP ANNOUNCED ● high
158.74.35.0/24 U.S. Dept. of Health and Human Services BGP ANNOUNCED ● high
162.99.0.0/17 U.S. Dept. of Health and Human Services BGP ANNOUNCED ● high
162.99.128.0/18 U.S. Dept. of Health and Human Services BGP ANNOUNCED ● high
162.99.192.0/19 U.S. Dept. of Health and Human Services BGP ANNOUNCED ● high
198.102.218.0/24 U.S. Dept. of Health and Human Services BGP ANNOUNCED ● high
198.179.0.0/23 U.S. Dept. of Health and Human Services BGP ANNOUNCED ● high
198.179.2.0/24 U.S. Dept. of Health and Human Services BGP ANNOUNCED ● high
2601:9600::/24 U.S. Dept. of Health and Human Services BGP ANNOUNCED ● high
2607:f220::/44 U.S. Dept. of Health and Human Services BGP ANNOUNCED ● high
2607:f220:600::/44 U.S. Dept. of Health and Human Services BGP ANNOUNCED ● high
158.71.0.0/16 U.S. Dept. of Health and Human Services ARIN DIRECT ALLOCATION ● low
158.73.0.0/16 U.S. Dept. of Health and Human Services ARIN DIRECT ALLOCATION ● low
162.99.0.0/16 U.S. Dept. of Health and Human Services ARIN DIRECT ALLOCATION ● low
198.179.0.0 – 198.179.4.255 U.S. Dept. of Health and Human Services ARIN DIRECT ALLOCATION ● low

IPv6 ranges (3)

CIDR
2601:9600::/24
2607:f220:600::/44
2607:f220::/44

Domains hosted in this network

what's this?
samhsa.gov

Network trust

what's this?
RPKI hygiene: F how networks compare →
3.6% of checked blocks have valid RPKI ROA coverage (1 of 28)
No discrepancies found among checked blocks.

NIC Handles

ABUSE5037-ARIN AS26810 CISD-ARIN GASSW-ARIN HNOC10-ARIN MILLE3252-ARIN MOXLE3-ARIN MOXLE3-ARIN MOXLE3-ARIN MOXLE3-ARIN PSC110-ARIN ROXAS9-ARIN +2 more