Network · data from 2026-11-12
AS51248 Host-Telecom.com
Registry name: HOST-TELECOM Host-Telecom.com s.r.o., CZ · PeeringDB
37IPv4 routes
56.8% RPKI valid · 59.5% with a route object
5IPv6 routes
100.0% RPKI valid · 100.0% with a route object
15RPKI invalid
9 origin · 6 maxLength
1No ROA
15 with no route object for this origin
15Low visibility
seen by under 10% of full-table peers
21Route objects not announced
registered with origin AS51248, seen from no peer
Announced routes
Every prefix a peer of the route collectors sees with origin AS51248, things to look at first. Visibility = full-table peers that see it, of 673 (IPv4) and 636 (IPv6) on 75 collectors. Also as routes.csv.
| 91.199.137.167/32 | Invalid: origin | None | 2 0%low visibility |
| 91.199.154.10/32 | Invalid: origin | None | 2 0%low visibility |
| 141.133.172.134/32 | Invalid: origin | None | 2 0%low visibility |
| 141.133.175.11/32 | Invalid: origin | None | 2 0%low visibility |
| 160.20.109.40/32 | Invalid: origin | None | 2 0%low visibility |
| 160.20.109.112/32 | Invalid: origin | None | 2 0%low visibility |
| 160.20.109.156/32 | Invalid: origin | None | 2 0%low visibility |
| 160.20.109.169/32 | Invalid: origin | None | 2 0%low visibility |
| 160.20.109.187/32 | Invalid: origin | None | 2 0%low visibility |
| 45.151.183.76/32 | Invalid: maxLength | Nonecovered by 45.151.183.0/24 | 2 0%low visibility |
| 153.52.69.58/32 | Invalid: maxLength | Nonecovered by 153.52.69.0/24 | 2 0%low visibility |
| 188.130.208.88/32 | Invalid: maxLength | Nonecovered by 188.130.208.0/24 | 2 0%low visibility |
| 193.161.86.53/32 | Invalid: maxLength | Nonecovered by 193.161.84.0/22 | 2 0%low visibility |
| 194.87.126.182/32 | Invalid: maxLength | Nonecovered by 194.87.126.0/24 | 2 0%low visibility |
| 195.133.35.34/32 | Invalid: maxLength | Nonecovered by 195.133.35.0/24 | 2 0%low visibility |
| 45.10.191.0/24 | No ROA | RIR databaseRIPE | 671 100% |
| 13.143.234.0/24 | Valid | RIR databaseRIPE | 673 100% |
| 85.137.25.0/24 | Valid | RIR databaseRIPE | 673 100% |
| 85.137.26.0/24 | Valid | RIR databaseRIPE | 673 100% |
| 89.125.237.0/24 | Valid | RIR databaseRIPE | 673 100% |
| 153.52.69.0/24 | Valid | RIR databaseRIPE | 673 100% |
| 194.87.52.0/24 | Valid | RIR databaseRIPE | 673 100% |
| 194.87.126.0/24 | Valid | RIR databaseRIPE | 673 100% |
| 195.133.35.0/24 | Valid | RIR databaseRIPE | 673 100% |
| 212.192.210.0/24 | Valid | RIR databaseRIPE | 673 100% |
| 5.43.224.0/21 | Valid | RIR databaseRIPE | 672 100% |
| 48.103.175.0/24 | Valid | RIR databaseRIPE | 672 100% |
| 91.209.77.0/24 | Valid | RIR databaseRIPE | 672 100% |
| 201.8.94.0/24 | Valid | RIR databaseRIPE | 672 100% |
| 45.129.142.0/24 | Valid | RIR databaseRIPE | 671 100% |
| 135.106.134.0/23 | Valid | RIR databaseRIPE | 671 100% |
| 158.255.32.0/21 | Valid | RIR databaseRIPE | 671 100% |
| 176.74.216.0/21 | Valid | RIR databaseRIPE | 671 100% |
| 188.124.56.0/21 | Valid | RIR databaseRIPE | 671 100% |
| 193.161.84.0/22 | Valid | RIR databaseRIPE | 671 100% |
| 185.8.56.0/22 | Valid | RIR databaseRIPE | 670 100% |
| 158.255.39.0/24 | Valid | RIR databaseRIPE | 667 99% |
| 2a03:1840::/48 | Valid | RIR databaseRIPE | 636 100% |
| 2a03:1840:1::/48 | Valid | RIR databaseRIPE | 636 100% |
| 2a03:1840:2::/48 | Valid | RIR databaseRIPE | 636 100% |
| 2a03:1840:3::/48 | Valid | RIR databaseRIPE | 636 100% |
| 2a10:9687::/32 | Valid | RIR databaseRIPE | 634 100% |
AS-SET
PeeringDB's irr_as_set for AS51248: AS-HOST-TELECOM-CZ. Expanded from the day's IRR dumps the way bgpq4 does against whois.radb.net: a name with a database is read from that database only, one without from the first database in RADB's order. "Not covered" = this network's own routes that a filter built from the set would leave out (AS51248 isn't in the set, or no route object for AS51248 covers the route; more-specifics of a route object are accepted down to /24 and /48, as with bgpq4 -A -R 24 / -R 48). Customers' routes aren't counted: the collectors show each route's origin, not which network it came through.
| Name | Database | ASNs | Sets | AS51248 in it | Not covered |
|---|---|---|---|---|---|
| AS-HOST-TELECOM-CZ | RIPE | 8 | 1 | Yes | 15 |
Fix list
The changes that would bring RPKI, the IRR and what's announced into line. Some are deliberate (a route object kept for a backup route, say); the network decides. All 52 are in fix.csv.
- ROA: origin9
- ROA: maxLength6
- ROA: none1
- Route object: none15
- Route object: not announced21
| Change | Prefix or set | Detail |
|---|---|---|
| ROA: origin | 91.199.137.167/32 | ROAs covering it name AS62212, not AS51248. If AS51248 should announce it, add a ROA for AS51248. |
| Route object: none | 91.199.137.167/32 | No route object for it. Add a route object with origin AS51248 in the RIR database for the space. |
| ROA: origin | 91.199.154.10/32 | ROAs covering it name AS62212, not AS51248. If AS51248 should announce it, add a ROA for AS51248. |
| Route object: none | 91.199.154.10/32 | No route object for it. Add a route object with origin AS51248 in the RIR database for the space. |
| ROA: origin | 141.133.172.134/32 | ROAs covering it name AS62212, not AS51248. If AS51248 should announce it, add a ROA for AS51248. |
| Route object: none | 141.133.172.134/32 | No route object for it. Add a route object with origin AS51248 in the RIR database for the space. |
| ROA: origin | 141.133.175.11/32 | ROAs covering it name AS62212, not AS51248. If AS51248 should announce it, add a ROA for AS51248. |
| Route object: none | 141.133.175.11/32 | No route object for it. Add a route object with origin AS51248 in the RIR database for the space. |
| ROA: origin | 160.20.109.40/32 | ROAs covering it name AS402492, not AS51248. If AS51248 should announce it, add a ROA for AS51248. |
| Route object: none | 160.20.109.40/32 | No route object for it. Add a route object with origin AS51248 in the RIR database for the space. |
| ROA: origin | 160.20.109.112/32 | ROAs covering it name AS402492, not AS51248. If AS51248 should announce it, add a ROA for AS51248. |
| Route object: none | 160.20.109.112/32 | No route object for it. Add a route object with origin AS51248 in the RIR database for the space. |
| ROA: origin | 160.20.109.156/32 | ROAs covering it name AS402492, not AS51248. If AS51248 should announce it, add a ROA for AS51248. |
| Route object: none | 160.20.109.156/32 | No route object for it. Add a route object with origin AS51248 in the RIR database for the space. |
| ROA: origin | 160.20.109.169/32 | ROAs covering it name AS402492, not AS51248. If AS51248 should announce it, add a ROA for AS51248. |
| Route object: none | 160.20.109.169/32 | No route object for it. Add a route object with origin AS51248 in the RIR database for the space. |
| ROA: origin | 160.20.109.187/32 | ROAs covering it name AS402492, not AS51248. If AS51248 should announce it, add a ROA for AS51248. |
| Route object: none | 160.20.109.187/32 | No route object for it. Add a route object with origin AS51248 in the RIR database for the space. |
| ROA: maxLength | 45.151.183.76/32 | ROA 45.151.183.0/24 AS51248 has maxLength 24; the route is a /32. Raise the maxLength, or add a ROA for 45.151.183.76/32. |
| Route object: none | 45.151.183.76/32 | No route object for it. A route object for 45.151.183.0/24 with origin AS51248 covers it (too long for filters allowing more-specifics up to /24). Add a route object with origin AS51248 in the RIR database for the space. |
| ROA: maxLength | 153.52.69.58/32 | ROA 153.52.69.0/24 AS51248 has maxLength 24; the route is a /32. Raise the maxLength, or add a ROA for 153.52.69.58/32. |
| Route object: none | 153.52.69.58/32 | No route object for it. A route object for 153.52.69.0/24 with origin AS51248 covers it (too long for filters allowing more-specifics up to /24). Add a route object with origin AS51248 in the RIR database for the space. |
| ROA: maxLength | 188.130.208.88/32 | ROA 188.130.208.0/24 AS51248 has maxLength 24; the route is a /32. Raise the maxLength, or add a ROA for 188.130.208.88/32. |
| Route object: none | 188.130.208.88/32 | No route object for it. A route object for 188.130.208.0/24 with origin AS51248 covers it (too long for filters allowing more-specifics up to /24). Add a route object with origin AS51248 in the RIR database for the space. |
| ROA: maxLength | 193.161.86.53/32 | ROA 193.161.84.0/22 AS51248 has maxLength 24; the route is a /32. Raise the maxLength, or add a ROA for 193.161.86.53/32. |
| Route object: none | 193.161.86.53/32 | No route object for it. A route object for 193.161.84.0/22 with origin AS51248 covers it (too long for filters allowing more-specifics up to /24). Add a route object with origin AS51248 in the RIR database for the space. |
| ROA: maxLength | 194.87.126.182/32 | ROA 194.87.126.0/24 AS51248 has maxLength 24; the route is a /32. Raise the maxLength, or add a ROA for 194.87.126.182/32. |
| Route object: none | 194.87.126.182/32 | No route object for it. A route object for 194.87.126.0/24 with origin AS51248 covers it (too long for filters allowing more-specifics up to /24). Add a route object with origin AS51248 in the RIR database for the space. |
| ROA: maxLength | 195.133.35.34/32 | ROA 195.133.35.0/24 AS51248 has maxLength 24; the route is a /32. Raise the maxLength, or add a ROA for 195.133.35.34/32. |
| Route object: none | 195.133.35.34/32 | No route object for it. A route object for 195.133.35.0/24 with origin AS51248 covers it (too long for filters allowing more-specifics up to /24). Add a route object with origin AS51248 in the RIR database for the space. |
| ROA: none | 45.10.191.0/24 | No ROA covers it. Add a ROA for AS51248, maxLength 24. |
Route objects not announced
Route objects with origin AS51248 whose prefix no peer sees AS51248 announce. Many are kept on purpose (backup routes, space announced only in some places).
| 5.43.224.0/24 | RIPE | Valid |
| 5.43.225.0/24 | RIPE | Valid |
| 5.43.226.0/24 | RIPE | Valid |
| 5.43.227.0/24 | RIPE | Valid |
| 5.43.228.0/24 | RIPE | Valid |
| 5.43.229.0/24 | RIPE | Valid |
| 5.43.230.0/24 | RIPE | Valid |
| 5.43.231.0/24 | RIPE | Valid |
| 45.151.183.0/24 | RIPE | Valid |
| 46.8.113.0/24 | RIPE | Valid |
| 85.137.27.0/24 | RIPE | Invalid: origin |
| 188.124.56.0/24 | RIPE | Valid |
| 188.124.57.0/24 | RIPE | Valid |
| 188.124.58.0/24 | RIPE | Valid |
| 188.124.59.0/24 | RIPE | Valid |
| 188.124.60.0/24 | RIPE | Valid |
| 188.124.61.0/24 | RIPE | Valid |
| 188.124.62.0/24 | RIPE | Valid |
| 188.124.63.0/24 | RIPE | Valid |
| 188.130.208.0/24 | RIPE | Valid |
| 192.145.98.0/24 | RIPE | Valid |
Routes: the 08:00 UTC snapshots of 2026-11-12 from 75 RIPE RIS and RouteViews collectors. RPKI: our rpki-client run before the snapshot. IRR: the day's dumps of the five RIR databases and RADB's mirrors. The LEVEL3 and IDNIC databases publish no dump and aren't read, so route objects only there count as none.