Addresses
2,048
2.0K
Sub-ranges
10+
within this block
PTR Density
69.3%
1.4K of 2.0K IPs have PTR
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.
76/100
Moderate
How this score is built
- Baseline (neutral) 65
- Long-established allocation (25y) +6
- Has a reverse-DNS (PTR) record +5
- Trust score 76 / 100
Experimental · trust-vectors model v1.2.0 — a transparent heuristic, not a definitive verdict. How it works →
Ranges inside 217.211.136.0/21
| CIDR | IPs | Organization | ASN | Country |
|---|---|---|---|---|
| 217.211.138.0/23 | 512 | Telia Company AB | AS3301 | SE |
| 217.211.140.0/23 | 512 | Telia Company AB | AS3301 | SE |
| 217.211.136.0/24 | 256 | Telia Company AB | AS3301 | SE |
| 217.211.143.0/24 | 256 | Telia Company AB | AS3301 | SE |
| 217.211.137.0/24 | 256 | Telia Company AB | AS3301 | SE |
| 217.211.142.128/25 | 128 | Telia Company AB | AS3301 | SE |
| 217.211.142.0/26 | 64 | Telia Company AB | AS3301 | SE |
| 217.211.142.64/27 | 32 | Telia Company AB | AS3301 | SE |
| 217.211.142.96/28 | 16 | Telia Company AB | AS3301 | SE |
| 217.211.142.112/28 | 16 | Telia Company AB | AS3301 | SE |
Geolocation
First 256 of 2,048 IP addresses in 217.211.136.0/21
217.211.136.0
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+ 1.8K more (range too large to list inline)
BGP Routing
Live BGP anomalies →Not announced as an exact prefix — covered by the announced supernet 217.208.0.0/13.
Announced prefix
Origin AS
Announcement samples
5,445
Last seen
2026-07-23 22:47:07
Frequently Asked Questions
What is 217.211.136.0/21?
217.211.136.0/21 is a CIDR network block containing 2,048 IPv4 addresses (from 217.211.136.0 to 217.211.143.255). CIDR notation combines an IP address with a prefix length to define a range of addresses.
Who owns the 217.211.136.0/21 network?
The 217.211.136.0/21 range is allocated to Telia Company AB and announced via AS3301 from Sweden.
Last updated: 2026-07-23 22:55:32 UTC
