Comcast International Holdings UK Limited
Cluster stats
| Netblocks | 26 |
| All fragments | 4,102 blocks across 9 clusters |
| Cluster ID | 191619337 |
| Registry | BGP |
| Customers | find customers using this network → |
Evidence & provenance ?
| Attribution | unresolved |
| Shared handles | clustered on 9 shared RIR contact/maintainer handles |
| Registry names | 2 distinct registrant names across these blocks |
| full provenance (JSON) → · how attribution works | |
IP Ranges (26)
⬇ export CSV| CIDR | Org name | Registry | Status | Confidence |
|---|---|---|---|---|
| 184.120.0.0/19 | Comcast International Holdings UK Limited | BGP | ANNOUNCED | ● high |
| 184.120.32.0/20 | Comcast International Holdings UK Limited | BGP | ANNOUNCED | ● high |
| 184.120.32.0/19 | Comcast International Holdings UK Limited | BGP | ANNOUNCED | ● high |
| 184.120.48.0/20 | Comcast International Holdings UK Limited | BGP | ANNOUNCED | ● high |
| 184.120.64.0/19 | Comcast International Holdings UK Limited | BGP | ANNOUNCED | ● high |
| 184.120.128.0/20 | Comcast International Holdings UK Limited | BGP | ANNOUNCED | ● high |
| 184.120.128.0/19 | Comcast International Holdings UK Limited | BGP | ANNOUNCED | ● high |
| 184.120.144.0/20 | Comcast International Holdings UK Limited | BGP | ANNOUNCED | ● high |
| 184.120.160.0/20 | Comcast International Holdings UK Limited | BGP | ANNOUNCED | ● high |
| 184.120.160.0/19 | Comcast International Holdings UK Limited | BGP | ANNOUNCED | ● high |
| 184.124.0.0/23 | Comcast International Holdings UK Limited | BGP | ANNOUNCED | ● high |
| 184.124.2.0/23 | Comcast International Holdings UK Limited | BGP | ANNOUNCED | ● high |
| 185.28.92.0/23 | Comcast International Holdings UK Limited | BGP | ANNOUNCED | ● high |
| 185.28.94.0/24 | Comcast International Holdings UK Limited | BGP | ANNOUNCED | ● high |
| 2a0c:93c0::/44 | Comcast International Holdings UK Limited | BGP | ANNOUNCED | ● high |
| 2a0c:93c0:10::/44 | Comcast International Holdings UK Limited | BGP | ANNOUNCED | ● high |
| 2a0c:93c0:6000::/48 | Comcast International Holdings UK Limited | BGP | ANNOUNCED | ● high |
| 2a0c:93c0:6002::/48 | Comcast International Holdings UK Limited | BGP | ANNOUNCED | ● high |
| 2a0c:93c0:8000::/48 | Comcast International Holdings UK Limited | BGP | ANNOUNCED | ● high |
| 2a0c:93c0:8002::/48 | Comcast International Holdings UK Limited | BGP | ANNOUNCED | ● high |
| 2a0c:93c0:c000::/48 | Comcast International Holdings UK Limited | BGP | ANNOUNCED | ● high |
| 2a0c:93c0:c002::/48 | Comcast International Holdings UK Limited | BGP | ANNOUNCED | ● high |
| 185.28.92.0/22 | Comcast International Holdings UK Limited | RIPE | ALLOCATED PA | ● low |
| 193.57.148.0/22 | Comcast International Holdings UK Limited | RIPE | ALLOCATED-ASSIGNED PA | ● low |
| 2a00:9d60::/32 | Comcast International Holdings UK Limited | RIPE | ALLOCATED-BY-RIR | ● low |
| 2a0c:93c0::/29 | Comcast International Holdings UK Limited | RIPE | ALLOCATED-BY-RIR | ● low |
Network trust
what's this?
RPKI hygiene: C
how networks compare →
61.5%
of checked blocks have valid RPKI ROA coverage
(16 of 26)
Possible discrepancies (3)
These blocks are registered to Comcast International Holdings UK Limited 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.
| 2a0c:93c0:8000::/48 /48 | authorized for AS5607 — Sky UK Limited |
| 2a0c:93c0:8002::/48 /48 | authorized for AS5607 — Sky UK Limited |
| 2a0c:93c0:c002::/48 /48 | authorized for AS5607 — Sky UK Limited |
NIC Handles
AS202149
AS212465
DUMY-RIPE
DUMY-RIPE
ORG-CIHU1-RIPE
RIPE-NCC-HM-MNT
TPUK001-MNT
uk-comcast-1-mnt
uk-comcast-1-mnt