Glaxo Smith Kline
GlaxoSmithKline
Cluster stats
Netblocks33
All fragments 45 blocks across 5 clusters
Cluster ID191616226
RegistryAPNIC
Customersfind customers using this network →
Evidence & provenance ?
Attribution unresolved
Shared handles clustered on 27 shared RIR contact/maintainer handles
Registry names 8 distinct registrant names across these blocks
full provenance (JSON) → · how attribution works

IP Ranges (33)

⬇ export CSV
CIDR Org name Registry Status Confidence
130.23.0.0/16 GlaxoSmithKline ARIN ● high
130.23.244.0/24 GlaxoSmithKline BGP ANNOUNCED ● high
130.23.248.0/24 GlaxoSmithKline BGP ANNOUNCED ● high
139.136.0.0/16 GlaxoSmithKline ARIN ● high
143.193.0.0/16 GlaxoSmithKline ARIN ● high
145.240.6.0/23 GlaxoSmithKline BGP ANNOUNCED ● high
145.240.94.0/24 GlaxoSmithKline BGP ANNOUNCED ● high
152.51.0.0/16 GlaxoSmithKline ARIN ● high
152.51.24.0/24 GlaxoSmithKline BGP ANNOUNCED ● high
152.51.27.0/24 GlaxoSmithKline BGP ANNOUNCED ● high
152.51.48.0/24 GlaxoSmithKline BGP ANNOUNCED ● high
152.51.56.0/24 GlaxoSmithKline BGP ANNOUNCED ● high
166.71.0.0/16 GlaxoSmithKline ARIN ● high
198.28.64.0/18 GlaxoSmithKline ARIN ● high
198.28.69.0/24 GlaxoSmithKline BGP ANNOUNCED ● high
198.28.92.0/24 GlaxoSmithKline BGP ANNOUNCED ● high
199.28.0.0/16 GlaxoSmithKline ARIN ● high
80.179.225.176/30 GlaxoSmithKline-Ltd RIPE ASSIGNED PA ● low
82.204.191.136/30 GlaxoSmithKline RIPE ASSIGNED PA ● low
85.62.1.124/30 GLAXOSMITHKLINE RIPE ASSIGNED PA ● low
85.90.238.4/30 GLAXOSMITHKLINE RIPE ASSIGNED PA ● low
91.82.117.76/30 GLAXOSMITHKLINE RIPE ASSIGNED PA ● low
145.240.0.0/16 GLAXOSMITHKLINE RIPE LEGACY ● low
147.184.0.0/16 GLAXOSMITHKLINE RIPE LEGACY ● low
159.30.0.0/16 GLAXOSMITHKLINE RIPE LEGACY ● low
159.114.0.0/16 GLAXOSMITHKLINE RIPE LEGACY ● low
161.147.0.0/16 GLAXOSMITHKLINE RIPE LEGACY ● low
192.116.244.72/29 GlaxoSmithKline RIPE ASSIGNED PA ● low
195.50.64.32/30 GLAXOSMITHKLINE RIPE ASSIGNED PA ● low
202.79.215.28/30 GlaxoSmithKline APNIC ALLOCATED NON-PORTABLE ● low
213.240.36.160/28 GLAXOSMITHKLINE-NET RIPE ASSIGNED PA ● low
2001:4d78:104:d2::/64 GLAXOSMITHKLINE RIPE ASSIGNED ● low
2a00:2381:e675::/48 GLAXOSMITHKLINE-PLC RIPE AGGREGATED-BY-LIR ● low

Network trust

what's this?
RPKI hygiene: D how networks compare →
27.3% of checked blocks have valid RPKI ROA coverage (9 of 33)
Possible discrepancies (1)

These blocks are registered to GlaxoSmithKline 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:e675::/48 /48 authorized for AS2856 — British Telecommunications PLC

NIC Handles

AE131-AP AG545-AP AG545-AP AS12301-MNT AS14306 AS2539 AS3902 AS5635 AS824 AS8771-MNT AS9116-MNT BTNET-MNT +15 more