Skip to main content
WorldIP.io
IPv4 Address

5.16.21.179

JSC ER-Telecom Holding AS51570 · JSC ER-Telecom Holding Russia RIPE
Within
5.16.0.0/14
CIDR
5.16.20.0/22
/22 · 1.0K IPs
ASN
AS51570
JSC ER-Telecom Holding
Reverse DNS
brestskiy.11
Last scanned 7 hr ago
Blocklisted
Checking…
Scanning blocklists

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.

83/100
Trusted
How this score is built

Experimental · trust-vectors model v1.2.1 — a transparent heuristic, not a definitive verdict. How it works →

DNS records

Reverse DNS (PTR)
brestskiy.11
Forward-confirmed (FCrDNS)
✗ Mismatch
PTR TTL
3600 s
Reverse DNS last checked
2026-10-12 13:38 UTC
Forward DNS last checked
2026-10-12 13:38 UTC

Reverse & forward DNS collected by the WorldIP scanner fleet — FCrDNS confirms the PTR hostname resolves back to this IP.

Domains hosted

as of 2026-10-11 UTC

2

Registrable domains (like example.com) with at least one name resolving to this IP — counted once a week from issued.live's DNS snapshot.

Domain data provided by issued.live — for full details visit https://issued.live/pricing

Reverse DNS history

How this IP's reverse DNS (PTR) has changed over time, from our scans.

This IP's reverse DNS changes frequently — the timeline below shows the most recent changes.

  1. Brestskiy.11 — Oct 11, 2026 → present
  2. 5x16x21x179.static-business.spb.ertelecom.ru — Oct 10, 2026 → Oct 11, 2026
  3. oooforumspb.myds.me — Oct 8, 2026 → Oct 10, 2026
  4. Oooforumspb.synology.me — Oct 8, 2026 → Oct 8, 2026
  5. oooforumspb.myds.me — Oct 7, 2026 → Oct 8, 2026
  6. 5x16x21x179.static-business.spb.ertelecom.ru — Oct 6, 2026 → Oct 7, 2026
  7. oooforumspb.synology.me — Oct 6, 2026 → Oct 6, 2026
  8. brestskiy.11 — Oct 5, 2026 → Oct 6, 2026
  9. Oooforumspb.myDS.me — Oct 5, 2026 → Oct 5, 2026
  10. 5x16x21x179.static-business.spb.ertelecom.ru — Oct 5, 2026 → Oct 5, 2026
  11. oooforumspb.myds.me — Oct 4, 2026 → Oct 5, 2026
  12. oooforumspb.synology.me — Oct 3, 2026 → Oct 4, 2026
  13. Brestskiy.11 — Oct 3, 2026 → Oct 3, 2026
  14. oooforumspb.myds.me — Oct 3, 2026 → Oct 3, 2026
  15. 5x16x21x179.static-business.spb.ertelecom.ru — Oct 2, 2026 → Oct 3, 2026
  16. oooforumspb.synology.me — Oct 1, 2026 → Oct 2, 2026
  17. 5x16x21x179.static-business.spb.ertelecom.ru — Oct 1, 2026 → Oct 1, 2026
  18. oooforumspb.myds.me — Sep 30, 2026 → Oct 1, 2026
  19. Oooforumspb.synology.me — Sep 30, 2026 → Sep 30, 2026
  20. 5x16x21x179.static-business.spb.ertelecom.ru — Sep 29, 2026 → Sep 30, 2026
  21. oooforumspb.myds.me — Sep 29, 2026 → Sep 29, 2026
  22. 5x16x21x179.static-business.spb.ertelecom.ru — Sep 28, 2026 → Sep 29, 2026
  23. brestskiy.11 — Sep 28, 2026 → Sep 28, 2026
  24. 5x16x21x179.static-business.spb.ertelecom.ru — Sep 27, 2026 → Sep 28, 2026
  25. oooforumspb.synology.me — Sep 26, 2026 → Sep 27, 2026
  26. 5x16x21x179.static-business.spb.ertelecom.ru — Sep 25, 2026 → Sep 26, 2026
  27. oooforumspb.myds.me — Sep 25, 2026 → Sep 25, 2026
  28. brestskiy.11 — Aug 25, 2026 → Sep 25, 2026
  29. 5x16x21x179.static-business.spb.ertelecom.ru — Aug 24, 2026 → Aug 25, 2026
  30. oooforumspb.synology.me — Aug 19, 2026 → Aug 24, 2026
  31. 5x16x21x179.static-business.spb.ertelecom.ru — Aug 17, 2026 → Aug 19, 2026
  32. Brestskiy.11 — Jul 10, 2026 → Aug 17, 2026
  33. Oooforumspb.synology.me — Jul 8, 2026 → Jul 10, 2026
  34. 5x16x21x179.static-business.spb.ertelecom.ru — Jul 4, 2026 → Jul 8, 2026
  35. Brestskiy.11 — Jun 30, 2026 → Jul 4, 2026
  36. 5x16x21x179.static-business.spb.ertelecom.ru — Jun 29, 2026 → Jun 30, 2026
  37. Oooforumspb.myDS.me — Jun 25, 2026 → Jun 29, 2026
  38. Oooforumspb.synology.me — Jun 22, 2026 → Jun 25, 2026
  39. 5x16x21x179.static-business.spb.ertelecom.ru — Jun 19, 2026 → Jun 22, 2026
  40. Oooforumspb.myDS.me — Jun 19, 2026 → Jun 19, 2026
  41. 5x16x21x179.static-business.spb.ertelecom.ru — Jun 16, 2026 → Jun 19, 2026
  42. Brestskiy.11 — Jun 16, 2026 → Jun 16, 2026
  43. 5x16x21x179.static-business.spb.ertelecom.ru — Jun 15, 2026 → Jun 16, 2026
  44. Brestskiy.11 — Jun 11, 2026 → Jun 15, 2026

Network Allocation for 5.16.21.179

CIDR range
5.16.20.0/22
IP range (int)
84,939,776 — 84,940,799
Prefix length
/22
Organization
JSC ER-Telecom Holding
ASN
AS51570
ASN name
JSC ER-Telecom Holding
Location
Russia
Coordinates
55.738600, 37.606800
Accuracy radius
1000 km
Regional Internet Registry
RIPE
Allocated
2012-04-27
Data source(s)
maxmind_asn, ipinfo_lite, maxmind_city, maxmind_country
Last updated
2026-10-12 08:42:04

BGP Routing

Live BGP anomalies →

Origin AS announcing the most-specific prefix that covers this IP, observed across our RIPE RIS collectors.

Announced prefix
5.16.20.0/22
Origin AS
AS51570
Announcement samples
34,440
Last seen
2026-10-12 21:08:53

Frequently Asked Questions

Who owns 5.16.21.179?

5.16.21.179 is allocated to JSC ER-Telecom Holding (AS51570), registered in Russia.

Where is 5.16.21.179 located?

The geolocation for 5.16.21.179 maps to Russia based on MaxMind GeoLite2 data. Accuracy depends on the provider and may represent the ISP's regional hub rather than the exact endpoint.

What network is 5.16.21.179 on?

5.16.21.179 belongs to the 5.16.20.0/22 network block announced by AS51570. This range contains 1,024 addresses.

Does 5.16.21.179 have a reverse DNS record?

Reverse DNS (PTR) records are resolved live when you visit this page. If a PTR record exists, it appears in the Reverse DNS field above. PTR records map IP addresses back to hostnames and are commonly used for email authentication and network diagnostics.

Neighbors

Other addresses in the same /24.

5.16.21.171 5.16.21.172 5.16.21.173 5.16.21.174 5.16.21.175 5.16.21.176 5.16.21.177 5.16.21.178 5.16.21.180 5.16.21.181 5.16.21.182 5.16.21.183 5.16.21.184 5.16.21.185 5.16.21.186 5.16.21.187 See all in 5.16.0.0/14 →

Related

/24 neighborhood /16 block /8 block All AS51570 ranges All JSC ER-Telecom Holding ranges All Russia IPs
Last updated: 2026-10-12 16:03:39 UTC
Share