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Autonomous System

AS21534

BroadSoft, Inc.

Announced IPs
6,656
CIDR prefixes
14
ASN
AS21534

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.

65/100
Moderate
How this score is built

Experimental · trust-vectors model v1.2.0 — a transparent heuristic, not a definitive verdict. How it works →

Network profile

Source: PeeringDB →
Geographic scope Not Disclosed
Traffic ratio Not Disclosed
Peering policy Open

Top CIDR ranges

BGP Announced Prefixes

Live BGP anomalies →

Prefixes AS21534 actually originates in BGP, observed across our RIPE RIS collectors. This live routing view can differ from the registry allocation above.

PrefixAnnouncement samplesLast seen
135.84.173.0/24 8,579 2026-07-31 23:49:25
128.177.36.0/24 7,360 2026-07-31 23:41:58
199.59.64.0/24 7,340 2026-07-31 23:17:48
139.177.64.0/24 7,231 2026-07-31 23:42:43
139.177.94.0/24 7,224 2026-07-31 23:42:43
135.84.171.0/24 7,205 2026-07-31 23:41:58
199.59.67.0/24 7,201 2026-07-31 23:17:48
139.177.76.0/24 7,127 2026-07-31 22:55:31
139.177.70.0/24 7,103 2026-07-31 23:09:22
139.177.71.0/24 7,096 2026-07-31 23:09:22
199.19.197.0/24 7,021 2026-07-31 23:43:29
199.59.65.0/24 6,937 2026-07-31 23:49:44
135.84.169.0/24 5,587 2026-07-31 22:54:21
139.177.68.0/24 5,456 2026-07-31 22:55:05
199.19.199.0/24 5,312 2026-07-31 23:17:43
128.177.14.0/24 5,252 2026-07-31 23:41:59
139.177.65.0/24 5,190 2026-07-31 23:42:50
139.177.78.0/24 5,169 2026-07-31 23:27:09
135.84.168.0/24 5,154 2026-07-31 22:54:21
139.177.95.0/24 5,136 2026-07-31 23:42:50
135.84.172.0/24 5,126 2026-07-31 23:42:00
135.84.170.0/24 5,082 2026-07-31 22:54:21
199.59.66.0/24 4,855 2026-07-31 23:49:39
139.177.69.0/24 4,847 2026-07-31 22:55:05
135.84.174.0/24 4,564 2026-07-31 23:41:58
139.177.73.0/24 2,919 2026-07-07 02:22:29
139.177.72.0/24 1,727 2026-06-24 17:32:41
199.59.64.0/25 80 2026-07-31 06:06:16
199.59.67.0/25 80 2026-07-31 06:06:16

Frequently Asked Questions

What is AS21534?

AS21534 is an Autonomous System Number assigned to BroadSoft, Inc.. 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 AS21534 announce?

AS21534 announces 6.7K IPv4 addresses distributed across 14 routed CIDR prefixes. The network is registered in United States.

Who operates AS21534?

AS21534 is operated by BroadSoft, Inc.. The organization is based in United States. You can view all IP ranges and related ASNs on the organization page.

What country is AS21534 registered in?

AS21534 is registered in United States. This indicates where the network operator is headquartered, though the IP addresses it announces may serve users globally.

Last updated: 2026-07-31 23:55:31 UTC
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