Quest Diagnostics, Inc.
Cluster stats
| Netblocks | 30 |
| All fragments | 234 blocks across 34 clusters |
| Cluster ID | 191605660 |
| Registry | APNIC |
| Customers | find customers using this network → |
Evidence & provenance ?
| Attribution | unresolved |
| Shared handles | clustered on 33 shared RIR contact/maintainer handles |
| Registry names | 8 distinct registrant names across these blocks |
| full provenance (JSON) → · how attribution works | |
IP Ranges (30)
⬇ export CSV| CIDR | Org name | Registry | Status | Confidence |
|---|---|---|---|---|
| 42.61.96.120/29 | QUEST-SG | APNIC | ASSIGNED NON-PORTABLE | ● high |
| 65.199.254.0/24 | Quest Diagnostics, Inc. | BGP | ANNOUNCED | ● high |
| 115.42.152.64/28 | QUEST-SG | APNIC | ASSIGNED NON-PORTABLE | ● high |
| 156.30.5.0/24 | Quest Diagnostics, Inc. | BGP | ANNOUNCED | ● high |
| 156.30.24.0/24 | Quest Diagnostics, Inc. | BGP | ANNOUNCED | ● high |
| 203.125.33.240/28 | QUEST-SG | APNIC | ASSIGNED NON-PORTABLE | ● high |
| 204.235.142.0/23 | Quest Diagnostics, Inc. | BGP | ANNOUNCED | ● high |
| 209.242.240.0/24 | Quest Diagnostics, Inc. | BGP | ANNOUNCED | ● high |
| 209.242.241.0/24 | Quest Diagnostics, Inc. | BGP | ANNOUNCED | ● high |
| 209.242.247.0/24 | Quest Diagnostics, Inc. | BGP | ANNOUNCED | ● high |
| 209.242.248.0/24 | Quest Diagnostics, Inc. | BGP | ANNOUNCED | ● high |
| 209.242.250.0/24 | Quest Diagnostics, Inc. | BGP | ANNOUNCED | ● high |
| 209.242.251.0/24 | Quest Diagnostics, Inc. | BGP | ANNOUNCED | ● high |
| 210.8.184.192/28 | QUEST-CC-AU | APNIC | ASSIGNED NON-PORTABLE | ● high |
| 210.9.173.16/29 | QUEST-CC-AU | APNIC | ASSIGNED NON-PORTABLE | ● high |
| 210.11.0.232/29 | QUEST-CC-AU | APNIC | ASSIGNED NON-PORTABLE | ● high |
| 216.195.72.0/24 | Quest Diagnostics, Inc. | BGP | ANNOUNCED | ● high |
| 216.203.80.0/21 | Quest Diagnostics, Inc. | BGP | ANNOUNCED | ● high |
| 216.203.80.0/24 | Quest Diagnostics, Inc. | BGP | ANNOUNCED | ● high |
| 216.203.80.0/20 | Quest Diagnostics, Inc. | BGP | ANNOUNCED | ● high |
| 216.203.87.0/24 | Quest Diagnostics, Inc. | BGP | ANNOUNCED | ● high |
| 216.203.88.0/21 | Quest Diagnostics, Inc. | BGP | ANNOUNCED | ● high |
| 216.203.92.0/22 | Quest Diagnostics, Inc. | BGP | ANNOUNCED | ● high |
| 222.126.15.56/29 | QUEST-PH | APNIC | ASSIGNED NON-PORTABLE | ● high |
| 122.160.118.152/30 | QUEST_DIAGNOSTICS | APNIC | ALLOCATED NON-PORTABLE | ● low |
| 122.160.248.192/30 | QUEST_DIAGNOSTICS | APNIC | ALLOCATED NON-PORTABLE | ● low |
| 194.175.52.192/26 | QUEST-LAN | RIPE | ASSIGNED PA | ● low |
| 203.177.158.40/29 | QUEST-PH | APNIC | ASSIGNED NON-PORTABLE | ● low |
| 220.241.125.128/28 | QUEST-HK | APNIC | ASSIGNED NON-PORTABLE | ● low |
| 2a00:2381:1f43::/48 | QUEST-DIAGNOSTICS | RIPE | AGGREGATED-BY-LIR | ● low |
Network trust
what's this?
RPKI hygiene: D
how networks compare →
26.7%
of checked blocks have valid RPKI ROA coverage
(8 of 30)
Possible discrepancies (1)
These blocks are registered to Quest Diagnostics, Inc. but cryptographically authorized for a different, unrelated network (1 distinct holder) — often M&A history, multi-homing, or outsourced/managed hosting, occasionally worth a closer look.
| 2a00:2381:1f43::/48 /48 | authorized for AS2856 — British Telecommunications PLC |
NIC Handles
AE135-AP
AG698-AP
AI40-AP
AI40-AP
AO123-AP
AP706-AP
AS2068-AP
AS27021
AS512-AP
AS512-AP
BNA2-AP
BTNET-MNT
+21 more