Cambridge Telephone

Data as of 2026-07-26
BGP inherited
Cluster stats
Netblocks19 · 6,656 IPv4 addresses
Registered in United States (18) · Austria (1)
Cluster ID214424538
RegistryBGP
Customersfind customers using this network →
Evidence & provenance ?
Attribution BGP parent (inherited)
Shared handles clustered on 7 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
19 -4 netblocks since 2026-07-05
2026-07-05 peak 23 2026-07-26

IP Ranges (19)

⬇ export CSV
CIDR Org name Registry Status Confidence
23.172.192.0/24 Cambridge Telephone BGP ANNOUNCED ● high
45.33.208.0/22 Cambridge Telephone BGP ANNOUNCED ● high
45.33.212.0/22 Cambridge Telephone BGP ANNOUNCED ● high
45.33.216.0/24 Cambridge Telephone BGP ANNOUNCED ● high
45.33.218.0/24 Cambridge Telephone BGP ANNOUNCED ● high
45.33.219.0/24 Cambridge Telephone BGP ANNOUNCED ● high
45.33.220.0/24 Cambridge Telephone BGP ANNOUNCED ● high
45.33.223.0/24 Cambridge Telephone BGP ANNOUNCED ● high
185.207.179.0/24 Cambridge Telephone BGP ANNOUNCED ● high
199.58.120.0/24 Cambridge Telephone BGP ANNOUNCED ● high
199.58.121.0/24 Cambridge Telephone BGP ANNOUNCED ● high
199.58.122.0/24 Cambridge Telephone BGP ANNOUNCED ● high
199.58.123.0/24 Cambridge Telephone BGP ANNOUNCED ● high
199.58.124.0/24 Cambridge Telephone BGP ANNOUNCED ● high
199.58.125.0/24 Cambridge Telephone BGP ANNOUNCED ● high
199.58.126.0/24 Cambridge Telephone BGP ANNOUNCED ● high
199.58.127.0/24 Cambridge Telephone BGP ANNOUNCED ● high
45.33.208.0/20 Cambridge Telephone ARIN DIRECT ALLOCATION ● low
199.58.120.0/21 Cambridge Telephone ARIN DIRECT ALLOCATION ● low

Network trust

what's this?
RPKI hygiene: B how networks compare →
89.5% of checked blocks have valid RPKI ROA coverage (17 of 19)
No discrepancies found among checked blocks.

NIC Handles

AS397268 AS397285 CAMBR-3 NOC32278-ARIN NOC32278-ARIN NOC32278-ARIN NOC32278-ARIN