UMASSNET

Data as of 2026-07-26
Handle
Cluster stats
Netblocks23 · 165,632 IPv4 addresses
IPv6 1 prefix (largest 2001:48e8::/29)
Cluster ID213917463
RegistryBGP
Customersfind customers using this network →
Evidence & provenance ?
Attribution RIR handle
Shared handles clustered on 11 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
25 +2 netblocks since 2026-07-05
2026-07-05 peak 25 2026-07-26

IP Ranges (23)

⬇ export CSV
CIDR Org name Registry Status Confidence
69.16.0.0/17 UMASSNET BGP ANNOUNCED ● high
69.16.12.0/23 UMASSNET BGP ANNOUNCED ● high
69.16.14.0/23 UMASSNET BGP ANNOUNCED ● high
69.16.16.0/24 UMASSNET BGP ANNOUNCED ● high
69.16.16.0/20 UMASSNET BGP ANNOUNCED ● high
69.16.17.0/24 UMASSNET BGP ANNOUNCED ● high
69.16.36.0/23 UMASSNET BGP ANNOUNCED ● high
69.16.38.0/23 UMASSNET BGP ANNOUNCED ● high
69.16.64.0/23 UMASSNET BGP ANNOUNCED ● high
69.16.68.0/23 UMASSNET BGP ANNOUNCED ● high
69.16.72.0/23 UMASSNET BGP ANNOUNCED ● high
69.16.72.0/22 UMASSNET BGP ANNOUNCED ● high
69.16.76.0/22 UMASSNET BGP ANNOUNCED ● high
69.16.120.0/22 UMASSNET BGP ANNOUNCED ● high
69.16.122.0/23 UMASSNET BGP ANNOUNCED ● high
69.16.124.0/22 UMASSNET BGP ANNOUNCED ● high
134.241.0.0/16 UMASSNET BGP ANNOUNCED ● high
158.121.0.0/16 UMASSNET BGP ANNOUNCED ● high
192.195.196.0/24 UMASSNET BGP ANNOUNCED ● high
198.102.172.0/24 UMASSNET BGP ANNOUNCED ● high
198.102.211.0/24 UMASSNET BGP ANNOUNCED ● high
2001:48e8::/29 UMASSNET BGP ANNOUNCED ● high
205.172.224.0/22 UMASSNET ARIN DIRECT ALLOCATION ● low

IPv6 ranges (1)

CIDR
2001:48e8::/29

Domains hosted in this network

what's this?
gladns.com gladns.net

NIC Handles

ABUSE12-ARIN AS1968 BLOND3-ARIN BLOND3-ARIN HOS634-ORG-ARIN HOS634-ORG-ARIN HOS634-ORG-ARIN KEITH185-ARIN KOKOS-ARIN UMAP URIBE56-ARIN