AS59715 - SBTAP-AS Comune di San Benedetto del TrontoPARFC 4890 ✓RPKI ✓ 3/3ASPA ✓

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AS overview

Test target: 2a02:cdc5:9715:0:185:5:201:53 · ns1.as59715.net · address space: PA · prefixes announced: 3

prefix(es): 2a02:cdc0::/29, 2a02:cdc6:3074::/48, 2a02:cdc6:3100::/48

Targets & per-vantage-point probe results (3 target(s) across 7 vantage point(s))

Source codes (hover any badge for full description): CUR=curated · NS/SOA/MX=DNS records · SPF=SPF TXT · DRV=holder-derived (www, ns1, mail, gw, …) · ATL=RIPE Atlas · PDB=PeeringDB · WHOIS=RIPE whois · RDAP=RIPE RDAP · HIT=IPv6 Hitlist · RTR=in-prefix path hop (router) · PRB=static prefix probe · SYN=synthetic prefix::1 fallback

Target IP / hostnameSourceSRB host (SOX, Belgrade)DE host (Berlin)DE host (Düsseldorf)NL host (go6lab)ITA host (Karsolink)SLO host (6connect)SLO host (T-2)
ping1500B:80:443reachedping1500B:80:443reachedping1500B:80:443reachedping1500B:80:443reachedping1500B:80:443reachedping1500B:80:443reachedping1500B:80:443reached
2a02:cdc5:9715:0:185:5:201:53
ns1.as59715.net
NS??-??-??-??-??-??-??-
2a02:cdc5:9715:0:185:5:201:81SPFopenopenopenopenopenopenopenopenopenopenopenopenopenopen
2a02:cdc6:3100:0:185:5:202:53
ns2.as59715.net
NSrefusedrefusedrefusedrefusedrefusedrefused??refusedrefusedrefusedrefusedrefusedrefused

RPKI & ASPA

3 of 3 prefix(es) covered by a valid ROA.

PrefixRPKI stateReasonCovering VRP(s)
2a02:cdc0::/29✓ validmatched VRP (correct origin, length within maxLength)AS59715 /29 maxLen 52 (ripe)
2a02:cdc6:3074::/48✓ validmatched VRP (correct origin, length within maxLength)AS59715 /29 maxLen 52 (ripe)
2a02:cdc6:3100::/48✓ validmatched VRP (correct origin, length within maxLength)AS59715 /29 maxLen 52 (ripe)

ASPA: this AS has published an ASPA record listing 2 upstream provider(s) that are authorized to propagate routes from it: AS6762, AS12874. Routes from this AS that arrive via any other upstream are considered ASPA-invalid by validators that enforce ASPA.

Random-IP probe (yarrp) into the AS' prefixes

At least one router inside AS59715's announced prefix replied during the random-target probe. Hop(s): 2a02:cdc6:3100:0:185:5:202:1. These are candidate targets for direct testing.

ICMPv6 Type 2 (Packet Too Big) acceptance - active test

Type 2 honored. Forged ICMPv6 PTB (MTU=1280) was accepted by the destination's stack: the next 1500-byte Echo Reply arrived split into 2 fragments via the IPv6 Fragment Header.
method: ICMPv6 Echo + forged PTB, tested 2026-09-23T12:03:14Z

Multi-vantage path map

Every hop of all vantages’ traceroutes toward the target, drawn left→right, grouped into per-AS bubbles (a hop seen from several vantages is one shared bubble, so converging paths merge). It answers two questions per vantage — shown on each source bubble as echo ✓/⚠/✗ · trace ✓/✗: did the destination reply to ICMPv6 Echo (✓ honored, ⚠ replied but PTB not honored, ✗ no reply), and did the traceroute reach it. A line to the target is drawn only when that vantage got an echo reply — solid if the PTB was honored, dashed if not (reachable but a broken-PMTUD / RFC 4890 violation). The path depth still shows how far the traceroute itself got, and runs of unanswered (* *) hops collapse into one dashed “silent” bubble. Open full size ↗

multi-vantage path diagram for AS59715

From SRB host (SOX, Belgrade)   openRFC 4890 ✓

filter likely at: (none) · min PMTU on path: 1500

4/4
Echo small (56B) 64.1ms
4/4
Echo 1500B (DF) 64.1ms
no
Type 1 dest-unreach
-
TCP responds on

Path (traceroute + mtr + PTR)

#IP / PTRRTTmtr lossASAS holder
12a09:ab81::10.2ms0%*AS60733PERKE-NET - ZORAN PEROVIC trading as Agencija Perke.NET, RS
2sox-pn.sox.rs
2001:7f8:1e:8::3a
0.2ms0%AS13004SOX - Serbian Open Exchange DOO, RS
32001:7f8:1e:8::3d0.7ms0%AS13004SOX - Serbian Open Exchange DOO, RS
42001:67c:128c::699105.5ms0%-NA
5*-0%-
6*---
7*---
8*---
9*---
10*---
11*---
12*---
13*---
14*---
15*---
16*---
17*---
18*---
19*---
20*---
21*---
22*---
23*---
24*---

tracepath -6

 1?: [LOCALHOST]                        0.011ms pmtu 1500
 1:  _gateway                                              0.658ms 
 1:  _gateway                                              0.329ms 
 2:  sox-pn.sox.rs                                         0.670ms 
 3:  2001:7f8:1e:8::3d                                     0.472ms asymm  2 
 4:  2001:67c:128c::699                                   17.275ms 
 5:  no reply
 6:  no reply
 7:  no reply
 8:  no reply
 9:  no reply
10:  no reply
11:  no reply
12:  no reply
13:  no reply
14:  no reply
15:  no reply
16:  no reply
17:  no reply
18:  no reply
19:  no reply
20:  no reply
21:  no reply
22:  no reply
23:  no reply
24:  no reply
     Too many hops: pmtu 1500
     Resume: pmtu 1500 

From DE host (Berlin)   openRFC 4890 ✓

filter likely at: (none) · min PMTU on path: 1500

4/4
Echo small (56B) 39.1ms
4/4
Echo 1500B (DF) 39.4ms
no
Type 1 dest-unreach
-
TCP responds on

Path (traceroute + mtr + PTR)

#IP / PTRRTTmtr lossASAS holder
1xe-0-0-13-178.gw01.ber01.as59645.net
2a06:d1c1:100:b::1
0.3ms0%*AS59645WYBT-NET - Tobias Fiebig, DE
2ae0-2453.cr10.ber01.lwlcom.net
2a06:d1c0::dead:beef:1c02
0.5ms0%*AS59645WYBT-NET - Tobias Fiebig, DE
3ae0-10.cr10.ber03.lwlcom.net
2a00:c380:b200:230::220
0.9ms0%AS50629LWLCOM - LWLcom GmbH, DE
4ae0-15.cr11.dtm01.lwlcom.net
2a00:c380:b200:230::5
8.3ms0%AS50629LWLCOM - LWLcom GmbH, DE
5ae0-10.cr10.dtm02.lwlcom.net
2a00:c380:b200:230::255
8.7ms0%AS50629LWLCOM - LWLcom GmbH, DE
6ae0-20.cr10.dus04.lwlcom.net
2a00:c380:b200:230::139
8.3ms0%AS50629LWLCOM - LWLcom GmbH, DE
7ae0-10.cr10.dus01.lwlcom.net
2a00:c380:b200:230::187
8.4ms0%AS50629LWLCOM - LWLcom GmbH, DE
8ae0-90.cr11.dus01.lwlcom.net
2a00:c380:b200:230::222
8.8ms0%AS50629LWLCOM - LWLcom GmbH, DE
9as3303.dusseldorf.megaport.com
2001:7f8:8::ce7:0:1
17.3ms0%-NA
10i00ffm-005-loo179.bb.ip-plus.net
2001:918:100:3b::1
17.2ms0%AS3303SWISSCOM - Swisscom (Schweiz) AG, CH
11i62bsw-015-loo179.ip6.ip-plus.net
2001:918:100:2::1
17.5ms0%AS3303SWISSCOM - Swisscom (Schweiz) AG, CH
12i73olt-005-loo179.bb.ip-plus.net
2001:918:100:67::1
17.5ms0%AS3303SWISSCOM - Swisscom (Schweiz) AG, CH
13i71lzf-015-loo179.bb.ip-plus.net
2001:918:100:1a::1
17.9ms0%AS3303SWISSCOM - Swisscom (Schweiz) AG, CH
14i63bel-005-loo179.bb.ip-plus.net
2001:918:100:47::1
19.8ms0%AS3303SWISSCOM - Swisscom (Schweiz) AG, CH
15*-90%-
162001:b00:1:1:1::1a722.5ms0%AS12874FASTWEB - Fastweb SpA, IT
17*---
182a02:cdc6:3100:0:185:5:202:151.2ms0%AS59715SBTAP-AS - Comune di San Benedetto del Tronto, IT
192a02:cdc5:9715:169:169:254:63:7439.1ms0%AS59715SBTAP-AS - Comune di San Benedetto del Tronto, IT
20*-0%-
21*---
22*---
23*---
24*---

Rate-limited ICMPv6: hop 15 (loss between 5% and 95% across mtr cycles - the router replies but only sometimes).

tracepath -6

 1?: [LOCALHOST]                        0.039ms pmtu 1500
 1:  xe-0-0-13-178.gw01.ber01.as59645.net                  0.740ms 
 1:  xe-0-0-13-178.gw01.ber01.as59645.net                  0.464ms 
 2:  ae0-2453.cr10.ber01.lwlcom.net                        1.023ms 
 3:  ae0-10.cr10.ber03.lwlcom.net                          1.334ms 
 4:  ae0-15.cr11.dtm01.lwlcom.net                          8.819ms asymm  5 
 5:  ae0-10.cr10.dtm02.lwlcom.net                          8.965ms asymm  6 
 6:  ae0-20.cr10.dus04.lwlcom.net                          8.793ms asymm  5 
 7:  ae0-20.cr10.dus01.lwlcom.net                          9.054ms asymm  4 
 8:  ae0-90.cr11.dus01.lwlcom.net                          9.006ms asymm  5 
 9:  as3303.dusseldorf.megaport.com                       17.847ms asymm 13 
10:  i00ffm-005-loo179.bb.ip-plus.net                     17.608ms asymm 12 
11:  i62bsw-015-loo179.ip6.ip-plus.net                    17.859ms asymm 14 
12:  i73olt-005-loo179.bb.ip-plus.net                     17.866ms 
13:  i71lzf-015-loo179.bb.ip-plus.net                     18.284ms asymm 12 
14:  i63bel-005-loo179.bb.ip-plus.net                     22.302ms asymm 13 
15:  no reply
16:  2001:b00:1:1:1::1a7                                  23.058ms asymm  8 
17:  no reply
18:  2a02:cdc6:3100:0:185:5:202:1                         44.596ms asymm 12 
19:  2a02:cdc5:9715:169:169:254:63:74                     40.306ms asymm  6 
20:  no reply
21:  no reply
22:  no reply
23:  no reply
24:  no reply
     Too many hops: pmtu 1500
     Resume: pmtu 1500 

From DE host (Düsseldorf)   openRFC 4890 ✓

filter likely at: (none) · min PMTU on path: 1500

4/4
Echo small (56B) 41.7ms
4/4
Echo 1500B (DF) 41.7ms
no
Type 1 dest-unreach
-
TCP responds on

Path (traceroute + mtr + PTR)

#IP / PTRRTTmtr lossASAS holder
1xe-0-0-12-142.gw01.dus01.as59645.net
2a06:d1c1:100:d::1
0.2ms0%*AS59645WYBT-NET - Tobias Fiebig, DE
2eth1-0-12-h5594.edge5-dus1.bb.wiit.network
2001:4ba0:92f4:3::1
1.3ms0%AS24961MYLOC-AS - WIIT AG, DE
3lag13.agr3-dus3.bb.wiit.network
2001:4ba0:ffe9:7d::1
0.5ms20%AS24961MYLOC-AS - WIIT AG, DE
4lag11.core3-dus1.bb.wiit.network
2001:4ba0:ffe9:115::3
0.2ms0%AS24961MYLOC-AS - WIIT AG, DE
5lag8.core1-dus-ix.bb.wiit.network
2001:4ba0:ffe9:8::2
0.4ms0%AS24961MYLOC-AS - WIIT AG, DE
6*-70%-
72001:b00:1:1:1::1ab16.9ms0%AS12874FASTWEB - Fastweb SpA, IT
8*---
92a02:cdc6:3100:0:185:5:202:138.8ms0%AS59715SBTAP-AS - Comune di San Benedetto del Tronto, IT
102a02:cdc5:9715:169:169:254:63:7433.2ms0%AS59715SBTAP-AS - Comune di San Benedetto del Tronto, IT
11*-0%-
12*---
13*---
14*---
15*---
16*---
17*---
18*---
19*---
20*---
21*---
22*---
23*---
24*---

Rate-limited ICMPv6: hop 3, hop 6 (loss between 5% and 95% across mtr cycles - the router replies but only sometimes).

tracepath -6

 1?: [LOCALHOST]                        0.011ms pmtu 1500
 1:  xe-0-0-12-142.gw01.dus01.as59645.net                  0.285ms 
 1:  xe-0-0-12-142.gw01.dus01.as59645.net                  0.245ms 
 2:  eth1-0-12-h5594.edge5-dus1.bb.wiit.network            1.066ms 
 3:  no reply
 4:  lag11.core3-dus1.bb.wiit.network                      0.344ms 
 5:  lag8.core1-dus-ix.bb.wiit.network                     0.512ms 
 6:  no reply
 7:  2001:b00:1:1:1::1ab                                  17.259ms 
 8:  no reply
 9:  2a02:cdc6:3100:0:185:5:202:1                         39.278ms asymm 11 
10:  2a02:cdc5:9715:169:169:254:63:74                     34.072ms asymm  5 
11:  no reply
12:  no reply
13:  no reply
14:  no reply
15:  no reply
16:  no reply
17:  no reply
18:  no reply
19:  no reply
20:  no reply
21:  no reply
22:  no reply
23:  no reply
24:  no reply
     Too many hops: pmtu 1500
     Resume: pmtu 1500 

From NL host (go6lab)   openRFC 4890 ✓

filter likely at: (none) · min PMTU on path: 1500

4/4
Echo small (56B) 45.5ms
4/4
Echo 1500B (DF) 45.3ms
no
Type 1 dest-unreach
-
TCP responds on

Path (traceroute + mtr + PTR)

#IP / PTRRTTmtr lossASAS holder
12a00:8642:42::21.0ms0%AS203993GNA-DC1-AS - S.J.M. Steffann, NL
2*-0%*-
32a00:1ca8:1::1943.4ms0%AS50673Serverius-as - Serverius Holding B.V., NL
42a03:3f40::10:334.5ms0%AS50673Serverius-as - Serverius Holding B.V., NL
52001:7f8:1::a501:2874:1148.4ms20%-NA
62001:b00:1:1:3::13921.5ms0%AS12874FASTWEB - Fastweb SpA, IT
7*---
82a02:cdc6:3100:0:185:5:202:145.0ms0%AS59715SBTAP-AS - Comune di San Benedetto del Tronto, IT
92a02:cdc5:9715:169:169:254:63:7447.0ms0%AS59715SBTAP-AS - Comune di San Benedetto del Tronto, IT
10*-0%-
11*---
12*---
13*---
14*---
15*---
16*---
17*---
18*---
19*---
20*---
21*---
22*---
23*---
24*---

Rate-limited ICMPv6: hop 5 (loss between 5% and 95% across mtr cycles - the router replies but only sometimes).

tracepath -6

 1?: [LOCALHOST]                        0.057ms pmtu 1500
 1:  2a00:8642:42::2                                       2.102ms 
 1:  2a00:8642:42::2                                       1.615ms 
 2:  gw.friends.steffann.nl                                2.916ms 
 3:  2a00:1ca8:1::194                                      5.426ms 
 4:  2a03:3f40::10:33                                      7.126ms 
 5:  2001:7f8:1::a501:2874:1                              23.930ms 
 6:  2001:b00:1:1:3::139                                  23.671ms 
 7:  no reply
 8:  2a02:cdc6:3100:0:185:5:202:1                         45.794ms asymm 10 
 9:  2a02:cdc5:9715:169:169:254:63:74                     45.720ms asymm 11 
10:  no reply
11:  no reply
12:  no reply
13:  no reply
14:  no reply
15:  no reply
16:  no reply
17:  no reply
18:  no reply
19:  no reply
20:  no reply
21:  no reply
22:  no reply
23:  no reply
24:  no reply
     Too many hops: pmtu 1500
     Resume: pmtu 1500 

From ITA host (Karsolink)   echo onlyRFC 4890 ✓

filter likely at: destination AS59715 (SBTAP-AS) · min PMTU on path: 1500

4/4
Echo small (56B) 30.6ms
0/4
Echo 1500B (DF) -
no
Type 1 dest-unreach
-
TCP responds on

Path (traceroute + mtr + PTR)

#IP / PTRRTTmtr lossASAS holder
1karsolink-01.net.karsolink.com
2a12:d8c0:105a:9001::1
0.4ms-AS204471KARSOLINK - 2S Computers SRL, IT
22a12:d8c0:109f:121::a10.4ms0%*AS204471KARSOLINK - 2S Computers SRL, IT
3*-40%-
4fastweb.minap.it
2001:7f8:c5::a501:2874:1
10.9ms10%AS12874Fastweb S.p.A.
52001:b00:1:1:3::1358.1ms0%AS12874FASTWEB - Fastweb SpA, IT
6*---
72a02:cdc6:3100:0:185:5:202:134.0ms0%AS59715SBTAP-AS - Comune di San Benedetto del Tronto, IT
82a02:cdc5:9715:169:169:254:63:7432.1ms0%AS59715SBTAP-AS - Comune di San Benedetto del Tronto, IT
9*-0%-
10*---
11*---
12*---
13*---
14*---
15*---
16*---
17*---
18*---
19*---
20*---
21*---
22*---
23*---
24*---

Rate-limited ICMPv6: hop 3, hop 4 (loss between 5% and 95% across mtr cycles - the router replies but only sometimes).

tracepath -6

 1?: [LOCALHOST]                        0.029ms pmtu 1500
 1:  karsolink-01.net.karsolink.com                        0.799ms 
 2:  2a12:d8c0:109f:121::a1                                0.762ms 
 3:  2a12:d8c0:109f:106::a2                                3.613ms 
 4:  fastweb.minap.it                                     11.713ms 
 5:  2001:b00:1:1:3::135                                   9.590ms 
 6:  no reply
 7:  2a02:cdc6:3100:0:185:5:202:1                         32.129ms asymm  9 
 8:  2a02:cdc5:9715:169:169:254:63:74                    222.691ms asymm 10 
 9:  no reply
10:  no reply
11:  no reply
12:  no reply
13:  no reply
14:  no reply
15:  no reply
16:  no reply
17:  no reply
18:  no reply
19:  no reply
20:  no reply
21:  no reply
22:  no reply
23:  no reply
24:  no reply
     Too many hops: pmtu 1500
     Resume: pmtu 1500 

From SLO host (6connect)   openRFC 4890 ✓

filter likely at: (none) · min PMTU on path: 1500

4/4
Echo small (56B) 22.9ms
4/4
Echo 1500B (DF) 23.0ms
no
Type 1 dest-unreach
-
TCP responds on

Path (traceroute + mtr + PTR)

#IP / PTRRTTmtr lossASAS holder
1fw1-lju.6connect.com
2607:fae0:a000::2
2.0ms0%*AS80386CONNECT - 6connect, Inc., US
2*---
3*-20%-
42a00:ee0:1:10::21.1ms0%AS5603SIOL-NET - Telekom Slovenije, d.d., SI
52001:41a8:20:2::1699.1ms40%AS6762SEABONE-NET - TELECOM ITALIA SPARKLE S.p.A., IT
6rom5-loop0-v6.rom.seabone.net
2001:41a8:60::5
16.5ms20%AS6762SEABONE-NET - TELECOM ITALIA SPARKLE S.p.A., IT
72001:41a8:60:2::7a22.2ms20%AS6762SEABONE-NET - TELECOM ITALIA SPARKLE S.p.A., IT
8*-20%-
9*---
10*---
11*---
12*---
13*---
14*---
15*---
16*---
17*---
18*---
19*---
20*---
21*---
22*---
23*---
24*---

Rate-limited ICMPv6: hop 3, hop 5, hop 6, hop 7, hop 8 (loss between 5% and 95% across mtr cycles - the router replies but only sometimes).

tracepath -6

 1?: [LOCALHOST]                        0.058ms pmtu 9000
 1:  fw1-lju.6connect.com                                  0.584ms 
 1:  fw1-lju.6connect.com                                  0.440ms 
 2:  no reply
 3:  2a00:ee1:800:9::1                                     2.371ms 
 4:  2a00:ee0:1:15::2                                      1.450ms asymm  3 
 5:  no reply
 6:  2a00:ee0:1:15::2                                     39.609ms pmtu 1500
 6:  rom5-loop0-v6.rom.seabone.net                        25.781ms asymm 13 
 7:  no reply
 8:  no reply
 9:  no reply
10:  2a02:cdc6:3100:0:185:5:202:1                         33.017ms asymm 13 
11:  2a02:cdc5:9715:169:169:254:63:74                     27.474ms asymm  8 
12:  no reply
13:  no reply
14:  no reply
15:  no reply
16:  no reply
17:  no reply
18:  no reply
19:  no reply
20:  no reply
21:  no reply
22:  no reply
23:  no reply
24:  no reply
     Too many hops: pmtu 1500

From SLO host (T-2)   openRFC 4890 ✓

filter likely at: (none) · min PMTU on path: 1500

4/4
Echo small (56B) 30.6ms
4/4
Echo 1500B (DF) 30.9ms
no
Type 1 dest-unreach
-
TCP responds on

Path (traceroute + mtr + PTR)

#IP / PTRRTTmtr lossASAS holder
1*-0%*-
22a01:260:1::2252.0ms0%*AS34779T-2-AS - T-2, d.o.o., SI
32a01-260-1-1--9c.core6.t-2.net
2a01:260:1:1::9c
2.4ms0%*AS34779T-2-AS - T-2, d.o.o., SI
42001:7f8:46:0:1::33039.3ms0%AS51988ARNES-SIX - ARNES, SI
5i00mil-005-loo179.bb.ip-plus.net
2001:918:100:74::1
9.2ms0%AS3303SWISSCOM - Swisscom (Schweiz) AG, CH
62001:4d98:a000::11927.0ms30%-NA
72001:b00:1:1:3::13914.1ms0%AS12874FASTWEB - Fastweb SpA, IT
8*---
92a02:cdc6:3100:0:185:5:202:136.2ms0%AS59715SBTAP-AS - Comune di San Benedetto del Tronto, IT
102a02:cdc5:9715:169:169:254:63:7430.8ms0%AS59715SBTAP-AS - Comune di San Benedetto del Tronto, IT
11*-0%-
12*---
13*---
14*---
15*---
16*---
17*---
18*---
19*---
20*---
21*---
22*---
23*---
24*---

Rate-limited ICMPv6: hop 6 (loss between 5% and 95% across mtr cycles - the router replies but only sometimes).

tracepath -6

 1?: [LOCALHOST]                        0.030ms pmtu 1500
 1:  2a01:261:313:b814::1                                  0.887ms 
 1:  2a01:261:313:b814::1                                  1.099ms 
 2:  2a01:260:1::225                                       9.862ms 
 3:  2a01-260-1-1--9a.core6.t-2.net                        3.422ms 
 4:  2001:7f8:46:0:1::3303                                10.708ms 
 5:  i00mil-005-loo179.bb.ip-plus.net                      9.558ms 
 6:  2001:4d98:a000::119                                  26.984ms asymm 11 
 7:  2001:b00:1:1:1::1ab                                  15.962ms asymm  8 
 8:  no reply
 9:  2a02:cdc6:3100:0:185:5:202:1                         45.140ms asymm 12 
10:  2a02:cdc5:9715:169:169:254:63:74                     31.109ms asymm  8 
11:  no reply
12:  no reply
13:  no reply
14:  no reply
15:  no reply
16:  no reply
17:  no reply
18:  no reply
19:  no reply
20:  no reply
21:  no reply
22:  no reply
23:  no reply
24:  no reply
     Too many hops: pmtu 1500
     Resume: pmtu 1500