Network · data from 2026-11-12

AS21557 Cybernet Communications

Registry name: CYB-BLK-1 - Cybernet Communications, Inc., US · PeeringDB

35IPv4 routes 5.7% RPKI valid · 91.4% with a route object

4IPv6 routes 0.0% RPKI valid · 25.0% with a route object

0RPKI invalid 0 origin · 0 maxLength

37No ROA 6 with no route object for this origin

0Low visibility seen by under 10% of full-table peers

23Route objects not announced registered with origin AS21557, seen from no peer

Announced routes

Every prefix a peer of the route collectors sees with origin AS21557, 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.


147.92.120.0/22	No ROA	Nonecovered by 147.92.120.0/21	673 100%	67
147.92.124.0/22	No ROA	Nonecovered by 147.92.120.0/21	673 100%	67
23.128.104.0/23	No ROA	None	672 100%	67
2605:5300:100::/40	No ROA	Nonecovered by 2605:5300::/32	635 100%	69
2605:5300:500::/40	No ROA	Nonecovered by 2605:5300::/32	635 100%	69
2605:5300:300::/40	No ROA	Nonecovered by 2605:5300::/32	634 100%	69
64.15.208.0/20	No ROA	RIR databaseARIN, NTTCOM	673 100%	67
64.15.212.0/24	No ROA	RIR databaseARIN	673 100%	67
64.15.213.0/24	No ROA	RIR databaseARIN	673 100%	67
64.15.215.0/24	No ROA	RIR databaseARIN	673 100%	67
64.15.218.0/24	No ROA	RIR databaseARIN	673 100%	67
64.15.221.0/24	No ROA	RIR databaseARIN	673 100%	67
64.15.222.0/24	No ROA	RIR databaseARIN	673 100%	67
64.15.223.0/24	No ROA	RIR databaseARIN	673 100%	67
75.127.48.0/20	No ROA	RIR databaseARIN	673 100%	67
75.127.48.0/24	No ROA	RIR databaseARIN	673 100%	67
75.127.49.0/24	No ROA	RIR databaseARIN	673 100%	67
75.127.51.0/24	No ROA	RIR databaseARIN	673 100%	67
75.127.52.0/24	No ROA	RIR databaseARIN	673 100%	67
75.127.53.0/24	No ROA	RIR databaseARIN	673 100%	67
75.127.54.0/24	No ROA	RIR databaseARIN	673 100%	67
75.127.57.0/24	No ROA	RIR databaseARIN	673 100%	67
75.127.61.0/24	No ROA	RIR databaseARIN	673 100%	67
75.127.62.0/24	No ROA	RIR databaseARIN	673 100%	67
75.127.63.0/24	No ROA	RIR databaseARIN	673 100%	67
104.218.188.0/24	No ROA	RIR databaseARIN	673 100%	67
104.218.189.0/24	No ROA	RIR databaseARIN	673 100%	67
104.218.190.0/24	No ROA	RIR databaseARIN	673 100%	67
104.218.191.0/24	No ROA	RIR databaseARIN	673 100%	67
162.219.200.0/22	No ROA	RIR databaseARIN	673 100%	67
162.219.200.0/24	No ROA	RIR databaseARIN	673 100%	67
162.219.201.0/24	No ROA	RIR databaseARIN	673 100%	67
162.219.202.0/24	No ROA	RIR databaseARIN	673 100%	67
162.219.203.0/24	No ROA	RIR databaseARIN	673 100%	67
104.218.188.0/22	No ROA	RIR databaseARIN	672 100%	67
147.92.120.0/21	No ROA	RIR databaseARIN, NTTCOM	672 100%	67
2605:5300::/32	No ROA	RIR databaseARIN	635 100%	69
23.128.104.0/24	Valid	RIR databaseARIN, NTTCOM	673 100%	67
23.128.105.0/24	Valid	RIR databaseARIN	673 100%	67

AS-SET

AS21557's PeeringDB record names no AS-SET.

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 66 are in fix.csv.

ROA: none37
Route object: none6
Route object: not announced23

Change	Prefix or set	Detail	Full-table peers
ROA: none	147.92.120.0/22	No ROA covers it. Add a ROA for AS21557, maxLength 22.	673 of 673
Route object: none	147.92.120.0/22	No route object for it. A route object for 147.92.120.0/21 with origin AS21557 covers it (filters allowing more-specifics accept it). Add a route object with origin AS21557 in the RIR database for the space.	673 of 673
ROA: none	147.92.124.0/22	No ROA covers it. Add a ROA for AS21557, maxLength 22.	673 of 673
Route object: none	147.92.124.0/22	No route object for it. A route object for 147.92.120.0/21 with origin AS21557 covers it (filters allowing more-specifics accept it). Add a route object with origin AS21557 in the RIR database for the space.	673 of 673
ROA: none	23.128.104.0/23	No ROA covers it. Add a ROA for AS21557, maxLength 23.	672 of 673
Route object: none	23.128.104.0/23	No route object for it. Add a route object with origin AS21557 in the RIR database for the space.	672 of 673
ROA: none	2605:5300:100::/40	No ROA covers it. Add a ROA for AS21557, maxLength 40.	635 of 636
Route object: none	2605:5300:100::/40	No route object for it. A route object for 2605:5300::/32 with origin AS21557 covers it (filters allowing more-specifics accept it). Add a route object with origin AS21557 in the RIR database for the space.	635 of 636
ROA: none	2605:5300:500::/40	No ROA covers it. Add a ROA for AS21557, maxLength 40.	635 of 636
Route object: none	2605:5300:500::/40	No route object for it. A route object for 2605:5300::/32 with origin AS21557 covers it (filters allowing more-specifics accept it). Add a route object with origin AS21557 in the RIR database for the space.	635 of 636
ROA: none	2605:5300:300::/40	No ROA covers it. Add a ROA for AS21557, maxLength 40.	634 of 636
Route object: none	2605:5300:300::/40	No route object for it. A route object for 2605:5300::/32 with origin AS21557 covers it (filters allowing more-specifics accept it). Add a route object with origin AS21557 in the RIR database for the space.	634 of 636
ROA: none	64.15.208.0/20	No ROA covers it. Add a ROA for AS21557, maxLength 20.	673 of 673
ROA: none	64.15.212.0/24	No ROA covers it. Add a ROA for AS21557, maxLength 24.	673 of 673
ROA: none	64.15.213.0/24	No ROA covers it. Add a ROA for AS21557, maxLength 24.	673 of 673
ROA: none	64.15.215.0/24	No ROA covers it. Add a ROA for AS21557, maxLength 24.	673 of 673
ROA: none	64.15.218.0/24	No ROA covers it. Add a ROA for AS21557, maxLength 24.	673 of 673
ROA: none	64.15.221.0/24	No ROA covers it. Add a ROA for AS21557, maxLength 24.	673 of 673
ROA: none	64.15.222.0/24	No ROA covers it. Add a ROA for AS21557, maxLength 24.	673 of 673
ROA: none	64.15.223.0/24	No ROA covers it. Add a ROA for AS21557, maxLength 24.	673 of 673
ROA: none	75.127.48.0/20	No ROA covers it. Add a ROA for AS21557, maxLength 20.	673 of 673
ROA: none	75.127.48.0/24	No ROA covers it. Add a ROA for AS21557, maxLength 24.	673 of 673
ROA: none	75.127.49.0/24	No ROA covers it. Add a ROA for AS21557, maxLength 24.	673 of 673
ROA: none	75.127.51.0/24	No ROA covers it. Add a ROA for AS21557, maxLength 24.	673 of 673
ROA: none	75.127.52.0/24	No ROA covers it. Add a ROA for AS21557, maxLength 24.	673 of 673
ROA: none	75.127.53.0/24	No ROA covers it. Add a ROA for AS21557, maxLength 24.	673 of 673
ROA: none	75.127.54.0/24	No ROA covers it. Add a ROA for AS21557, maxLength 24.	673 of 673
ROA: none	75.127.57.0/24	No ROA covers it. Add a ROA for AS21557, maxLength 24.	673 of 673
ROA: none	75.127.61.0/24	No ROA covers it. Add a ROA for AS21557, maxLength 24.	673 of 673
ROA: none	75.127.62.0/24	No ROA covers it. Add a ROA for AS21557, maxLength 24.	673 of 673
ROA: none	75.127.63.0/24	No ROA covers it. Add a ROA for AS21557, maxLength 24.	673 of 673
ROA: none	104.218.188.0/24	No ROA covers it. Add a ROA for AS21557, maxLength 24.	673 of 673
ROA: none	104.218.189.0/24	No ROA covers it. Add a ROA for AS21557, maxLength 24.	673 of 673
ROA: none	104.218.190.0/24	No ROA covers it. Add a ROA for AS21557, maxLength 24.	673 of 673
ROA: none	104.218.191.0/24	No ROA covers it. Add a ROA for AS21557, maxLength 24.	673 of 673
ROA: none	162.219.200.0/22	No ROA covers it. Add a ROA for AS21557, maxLength 22.	673 of 673
ROA: none	162.219.200.0/24	No ROA covers it. Add a ROA for AS21557, maxLength 24.	673 of 673
ROA: none	162.219.201.0/24	No ROA covers it. Add a ROA for AS21557, maxLength 24.	673 of 673
ROA: none	162.219.202.0/24	No ROA covers it. Add a ROA for AS21557, maxLength 24.	673 of 673
ROA: none	162.219.203.0/24	No ROA covers it. Add a ROA for AS21557, maxLength 24.	673 of 673
ROA: none	104.218.188.0/22	No ROA covers it. Add a ROA for AS21557, maxLength 22.	672 of 673
ROA: none	147.92.120.0/21	No ROA covers it. Add a ROA for AS21557, maxLength 21.	672 of 673
ROA: none	2605:5300::/32	No ROA covers it. Add a ROA for AS21557, maxLength 32.	635 of 636

Change

Prefix or set

Detail

Full-table peers

ROA: none

147.92.120.0/22

No ROA covers it. Add a ROA for AS21557, maxLength 22.

673 of 673

Route object: none

147.92.120.0/22

No route object for it. A route object for 147.92.120.0/21 with origin AS21557 covers it (filters allowing more-specifics accept it). Add a route object with origin AS21557 in the RIR database for the space.

673 of 673

ROA: none

147.92.124.0/22

No ROA covers it. Add a ROA for AS21557, maxLength 22.

673 of 673

Route object: none

147.92.124.0/22

673 of 673

ROA: none

23.128.104.0/23

No ROA covers it. Add a ROA for AS21557, maxLength 23.

672 of 673

Route object: none

23.128.104.0/23

No route object for it. Add a route object with origin AS21557 in the RIR database for the space.

672 of 673

ROA: none

2605:5300:100::/40

No ROA covers it. Add a ROA for AS21557, maxLength 40.

635 of 636

Route object: none

2605:5300:100::/40

No route object for it. A route object for 2605:5300::/32 with origin AS21557 covers it (filters allowing more-specifics accept it). Add a route object with origin AS21557 in the RIR database for the space.

635 of 636

ROA: none

2605:5300:500::/40

No ROA covers it. Add a ROA for AS21557, maxLength 40.

635 of 636

Route object: none

2605:5300:500::/40

635 of 636

ROA: none

2605:5300:300::/40

No ROA covers it. Add a ROA for AS21557, maxLength 40.

634 of 636

Route object: none

2605:5300:300::/40

634 of 636

ROA: none

64.15.208.0/20

No ROA covers it. Add a ROA for AS21557, maxLength 20.

673 of 673

ROA: none

64.15.212.0/24

No ROA covers it. Add a ROA for AS21557, maxLength 24.

673 of 673

ROA: none

64.15.213.0/24

No ROA covers it. Add a ROA for AS21557, maxLength 24.

673 of 673

ROA: none

64.15.215.0/24

No ROA covers it. Add a ROA for AS21557, maxLength 24.

673 of 673

ROA: none

64.15.218.0/24

No ROA covers it. Add a ROA for AS21557, maxLength 24.

673 of 673

ROA: none

64.15.221.0/24

No ROA covers it. Add a ROA for AS21557, maxLength 24.

673 of 673

ROA: none

64.15.222.0/24

No ROA covers it. Add a ROA for AS21557, maxLength 24.

673 of 673

ROA: none

64.15.223.0/24

No ROA covers it. Add a ROA for AS21557, maxLength 24.

673 of 673

ROA: none

75.127.48.0/20

No ROA covers it. Add a ROA for AS21557, maxLength 20.

673 of 673

ROA: none

75.127.48.0/24

No ROA covers it. Add a ROA for AS21557, maxLength 24.

673 of 673

ROA: none

75.127.49.0/24

No ROA covers it. Add a ROA for AS21557, maxLength 24.

673 of 673

ROA: none

75.127.51.0/24

No ROA covers it. Add a ROA for AS21557, maxLength 24.

673 of 673

ROA: none

75.127.52.0/24

No ROA covers it. Add a ROA for AS21557, maxLength 24.

673 of 673

ROA: none

75.127.53.0/24

No ROA covers it. Add a ROA for AS21557, maxLength 24.

673 of 673

ROA: none

75.127.54.0/24

No ROA covers it. Add a ROA for AS21557, maxLength 24.

673 of 673

ROA: none

75.127.57.0/24

No ROA covers it. Add a ROA for AS21557, maxLength 24.

673 of 673

ROA: none

75.127.61.0/24

No ROA covers it. Add a ROA for AS21557, maxLength 24.

673 of 673

ROA: none

75.127.62.0/24

No ROA covers it. Add a ROA for AS21557, maxLength 24.

673 of 673

ROA: none

75.127.63.0/24

No ROA covers it. Add a ROA for AS21557, maxLength 24.

673 of 673

ROA: none

104.218.188.0/24

No ROA covers it. Add a ROA for AS21557, maxLength 24.

673 of 673

ROA: none

104.218.189.0/24

No ROA covers it. Add a ROA for AS21557, maxLength 24.

673 of 673

ROA: none

104.218.190.0/24

No ROA covers it. Add a ROA for AS21557, maxLength 24.

673 of 673

ROA: none

104.218.191.0/24

No ROA covers it. Add a ROA for AS21557, maxLength 24.

673 of 673

ROA: none

162.219.200.0/22

No ROA covers it. Add a ROA for AS21557, maxLength 22.

673 of 673

ROA: none

162.219.200.0/24

No ROA covers it. Add a ROA for AS21557, maxLength 24.

673 of 673

ROA: none

162.219.201.0/24

No ROA covers it. Add a ROA for AS21557, maxLength 24.

673 of 673

ROA: none

162.219.202.0/24

No ROA covers it. Add a ROA for AS21557, maxLength 24.

673 of 673

ROA: none

162.219.203.0/24

No ROA covers it. Add a ROA for AS21557, maxLength 24.

673 of 673

ROA: none

104.218.188.0/22

No ROA covers it. Add a ROA for AS21557, maxLength 22.

672 of 673

ROA: none

147.92.120.0/21

No ROA covers it. Add a ROA for AS21557, maxLength 21.

672 of 673

ROA: none

2605:5300::/32

No ROA covers it. Add a ROA for AS21557, maxLength 32.

635 of 636

Route objects not announced

Route objects with origin AS21557 whose prefix no peer sees AS21557 announce. Many are kept on purpose (backup routes, space announced only in some places).


64.15.208.0/24	ARIN	No ROA
64.15.209.0/24	ARIN	No ROA
64.15.210.0/24	ARIN	No ROA
64.15.211.0/24	ARIN	No ROA
64.15.214.0/24	ARIN	No ROA
64.15.216.0/24	ARIN	No ROA
64.15.217.0/24	ARIN	No ROA
64.15.219.0/24	ARIN	No ROA
64.15.220.0/24	ARIN	No ROA
75.127.50.0/24	ARIN	No ROA
75.127.55.0/24	ARIN	No ROA
75.127.56.0/24	ARIN	No ROA
75.127.58.0/24	ARIN	No ROA
75.127.59.0/24	ARIN	No ROA
75.127.60.0/24	ARIN	No ROA
147.92.120.0/24	ARIN	No ROA
147.92.121.0/24	ARIN	No ROA
147.92.122.0/24	ARIN	No ROA
147.92.123.0/24	ARIN	No ROA
147.92.124.0/24	ARIN	No ROA
147.92.125.0/24	ARIN	No ROA
147.92.126.0/24	ARIN	No ROA
147.92.127.0/24	ARIN	No ROA

64.15.208.0/24

ARIN

No ROA

64.15.209.0/24

ARIN

No ROA

64.15.210.0/24

ARIN

No ROA

64.15.211.0/24

ARIN

No ROA

64.15.214.0/24

ARIN

No ROA

64.15.216.0/24

ARIN

No ROA

64.15.217.0/24

ARIN

No ROA

64.15.219.0/24

ARIN

No ROA

64.15.220.0/24

ARIN

No ROA

75.127.50.0/24

ARIN

No ROA

75.127.55.0/24

ARIN

No ROA

75.127.56.0/24

ARIN

No ROA

75.127.58.0/24

ARIN

No ROA

75.127.59.0/24

ARIN

No ROA

75.127.60.0/24

ARIN

No ROA

147.92.120.0/24

ARIN

No ROA

147.92.121.0/24

ARIN

No ROA

147.92.122.0/24

ARIN

No ROA

147.92.123.0/24

ARIN

No ROA

147.92.124.0/24

ARIN

No ROA

147.92.125.0/24

ARIN

No ROA

147.92.126.0/24

ARIN

No ROA

147.92.127.0/24

ARIN

No ROA

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.