NeuStar, Inc.
Cluster stats
Netblocks48
Cluster ID191593910
RegistryAPNIC
Customersfind customers using this network →
Evidence & provenance ?
Attribution unresolved
Shared handles clustered on 20 shared RIR contact/maintainer handles
Registry names 10 distinct registrant names across these blocks
full provenance (JSON) → · how attribution works

IP Ranges (48)

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CIDR Org name Registry Status Confidence
58.185.43.144/28 NEUSTAR-SG APNIC ASSIGNED NON-PORTABLE ● high
91.192.16.0/22 Neustar NGM Services Limited RIPE ASSIGNED PI ● high
91.196.116.0/22 Neustar NGM Services Limited RIPE ASSIGNED PI ● high
156.154.16.0/22 NeuStar, Inc. BGP ANNOUNCED ● high
156.154.24.0/24 NeuStar, Inc. BGP ANNOUNCED ● high
156.154.25.0/24 NeuStar, Inc. BGP ANNOUNCED ● high
156.154.26.0/24 NeuStar, Inc. BGP ANNOUNCED ● high
156.154.30.0/24 NeuStar, Inc. BGP ANNOUNCED ● high
156.154.42.0/24 NeuStar, Inc. BGP ANNOUNCED ● high
156.154.52.0/24 NeuStar, Inc. BGP ANNOUNCED ● high
156.154.56.0/24 NeuStar, Inc. BGP ANNOUNCED ● high
156.154.59.0/24 NeuStar, Inc. BGP ANNOUNCED ● high
156.154.83.0/24 NeuStar, Inc. BGP ANNOUNCED ● high
156.154.89.0/24 NeuStar, Inc. BGP ANNOUNCED ● high
156.154.90.0/24 NeuStar, Inc. BGP ANNOUNCED ● high
156.154.91.0/24 NeuStar, Inc. BGP ANNOUNCED ● high
156.154.116.0/24 NeuStar, Inc. BGP ANNOUNCED ● high
156.154.117.0/24 NeuStar, Inc. BGP ANNOUNCED ● high
156.154.136.0/24 NeuStar, Inc. BGP ANNOUNCED ● high
156.154.138.0/24 NeuStar, Inc. BGP ANNOUNCED ● high
156.154.148.0/23 NeuStar, Inc. BGP ANNOUNCED ● high
156.154.188.0/23 NeuStar, Inc. BGP ANNOUNCED ● high
156.154.192.0/24 NeuStar, Inc. BGP ANNOUNCED ● high
156.154.193.0/24 NeuStar, Inc. BGP ANNOUNCED ● high
156.154.196.0/24 NeuStar, Inc. BGP ANNOUNCED ● high
156.154.199.0/24 NeuStar, Inc. BGP ANNOUNCED ● high
156.154.200.0/24 NeuStar, Inc. BGP ANNOUNCED ● high
156.154.202.0/24 NeuStar, Inc. BGP ANNOUNCED ● high
209.173.53.0/24 NeuStar, Inc. BGP ANNOUNCED ● high
87.244.103.8/29 Neustar_Ltd RIPE ASSIGNED PA ● low
89.149.167.24/30 NEUSTAR-GTT RIPE ASSIGNED PA ● low
89.149.167.44/30 NEUSTAR-GTT RIPE ASSIGNED PA ● low
89.149.167.52/30 NEUSTAR-GTT RIPE ASSIGNED PA ● low
89.149.167.60/30 NEUSTAR-GTT RIPE ASSIGNED PA ● low
103.208.93.0/24 NEUSTAR-REGISTRY APNIC ASSIGNED NON-PORTABLE ● low
212.9.3.56/29 Neustar RIPE ASSIGNED PA ● low
212.72.51.192/26 NEUSTAR RIPE ASSIGNED PA ● low
212.72.53.192/26 NEUSTAR RIPE ASSIGNED PA ● low
212.72.62.0/27 NEUSTAR RIPE ASSIGNED PA ● low
212.73.198.192/26 NEUSTAR RIPE ASSIGNED PA ● low
212.73.199.0/27 NEUSTAR RIPE ASSIGNED PA ● low
212.73.224.128/26 NEUSTAR RIPE ASSIGNED PA ● low
212.187.140.0/27 NEUSTAR RIPE ASSIGNED PA ● low
212.187.140.64/26 Neustar RIPE ASSIGNED PA ● low
212.187.140.128/26 NEUSTAR RIPE ASSIGNED PA ● low
212.187.160.208/28 NEUSTAR RIPE ASSIGNED PA ● low
213.242.91.0/26 NEUSTAR-INC RIPE ASSIGNED PA ● low
2001:728:1802::/48 NEUSTAR-NET RIPE ASSIGNED ● low

Network trust

what's this?
RPKI hygiene: F how networks compare →
14.6% of checked blocks have valid RPKI ROA coverage (7 of 48)
Possible discrepancies (1)

These blocks are registered to NeuStar, 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.

2001:728:1802::/48 /48 authorized for AS2914 — NTT America, Inc.

NIC Handles

AB1411-AP AS3257-IPAM-MNT AS32980 AS7786 DUMY-RIPE DUMY-RIPE JC1648-AP JE-TEL-MNT LEVEL3-MNT MAINT-AU-BOMBORATECH MAINT-SG-SINGNET MAINT-VIPAR +8 more