AS137991
Lifeway Singapore Pte. Ltd.
Reputation · trust score
A transparent 0–100 signal. Every entity starts at a neutral baseline of 65; threat-intel blocklists, exposure, reverse-DNS, routing and allocation each adjust it up or down. Higher is more trustworthy.
- Baseline (neutral) 65
- Trust score 65 / 100
Experimental · trust-vectors model v1.2.0 — a transparent heuristic, not a definitive verdict. How it works →
Network profile
Source: PeeringDB →Present at 2 internet exchanges: SGIX: Peering LAN, Equinix Singapore
Top CIDR ranges
| CIDR | IPs | PTR Density | Organization | Country | State | City |
|---|---|---|---|---|---|---|
| 103.119.148.0/22 | 1.0K |
96.0%
|
Lifeway Singapore Pte. Ltd. | SG | — | — |
| 203.1.22.0/23 | 512 |
96.5%
|
Lifeway Singapore Pte. Ltd. | SG | — | — |
| 203.10.100.0/23 | 512 |
96.9%
|
Lifeway Singapore Pte. Ltd. | SG | — | — |
| 45.121.188.0/24 | 256 |
94.1%
|
Lifeway Singapore Pte. Ltd. | SG | — | — |
BGP Announced Prefixes
Live BGP anomalies →Prefixes AS137991 actually originates in BGP, observed across our RIPE RIS collectors. This live routing view can differ from the registry allocation above.
| Prefix | Announcement samples | Last seen |
|---|---|---|
| 203.10.100.0/23 | 9,644 | 2026-08-02 16:55:30 |
| 203.1.22.0/23 | 9,636 | 2026-08-02 16:55:30 |
| 103.119.148.0/22 | 9,381 | 2026-08-02 16:55:30 |
| 103.119.151.0/24 | 9,373 | 2026-08-02 16:55:30 |
| 103.119.150.0/24 | 9,355 | 2026-08-02 16:55:30 |
| 203.10.100.0/24 | 7,546 | 2026-08-02 17:43:40 |
| 45.121.188.0/24 | 7,390 | 2026-08-02 17:43:39 |
| 203.1.22.0/24 | 7,365 | 2026-08-02 17:43:40 |
| 103.119.148.0/24 | 7,129 | 2026-08-02 17:43:39 |
| 103.119.149.0/24 | 7,127 | 2026-08-02 17:43:39 |
Frequently Asked Questions
What is AS137991?
AS137991 is an Autonomous System Number assigned to Lifeway Singapore Pte. Ltd.. An ASN identifies a network that controls a specific set of IP addresses and determines how traffic is routed across the internet via BGP (Border Gateway Protocol).
How many IP addresses does AS137991 announce?
AS137991 announces 2.3K IPv4 addresses distributed across 4 routed CIDR prefixes. The network is registered in Singapore.
Who operates AS137991?
AS137991 is operated by Lifeway Singapore Pte. Ltd.. The organization is based in Singapore. You can view all IP ranges and related ASNs on the organization page.
What country is AS137991 registered in?
AS137991 is registered in Singapore. This indicates where the network operator is headquartered, though the IP addresses it announces may serve users globally.
