[REN-BGP-stats-all] Global R&E Routing Table Report - CERNET R&E view
REN Routing Table Report
cscora at frr.nsrc.org
Tue Sep 14 20:10:26 UTC 2021
Global R&E Routing Table Report 20:10 GMT Tue 14 Sep, 2021
Report Website: https://bgp.nsrc.org/REN
Detailed Analysis: https://bgp.nsrc.org/REN/CERNET/
Analysis Summary
----------------
BGP routing table entries examined: 15103
Prefixes after maximum aggregation (per Origin AS): 8592
Deaggregation factor: 1.76
Unique aggregates announced (without unneeded subnets): 9650
Total ASes present in the Internet Routing Table: 2399
Prefixes per ASN: 6.30
Origin-only ASes present in the Internet Routing Table: 2055
Origin ASes announcing only one prefix: 955
Transit ASes present in the Internet Routing Table: 344
Transit-only ASes present in the Internet Routing Table: 56
Average AS path length visible in the Internet Routing Table: 4.4
Max AS path length visible: 15
Max AS path prepend of ASN (211089) 11
Prefixes from unregistered ASNs in the Routing Table: 11
Number of instances of unregistered ASNs: 11
Number of 32-bit ASNs allocated by the RIRs: 37205
Number of 32-bit ASNs visible in the Routing Table: 472
Prefixes from 32-bit ASNs in the Routing Table: 1428
Number of bogon 32-bit ASNs visible in the Routing Table: 0
Special use prefixes present in the Routing Table: 1
Prefixes being announced from unallocated address space: 4
Number of addresses announced to Internet: 192665904
Equivalent to 11 /8s, 123 /16s and 217 /24s
Percentage of available address space announced: 5.2
Percentage of allocated address space announced: 5.2
Percentage of available address space allocated: 100.0
Percentage of address space in use by end-sites: 99.5
Total number of prefixes smaller than registry allocations: 1635
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 2842
Total APNIC prefixes after maximum aggregation: 1531
APNIC Deaggregation factor: 1.86
Prefixes being announced from the APNIC address blocks: 2842
Unique aggregates announced from the APNIC address blocks: 1806
APNIC Region origin ASes present in the Internet Routing Table: 417
APNIC Prefixes per ASN: 6.82
APNIC Region origin ASes announcing only one prefix: 177
APNIC Region transit ASes present in the Internet Routing Table: 47
Average APNIC Region AS path length visible: 4.4
Max APNIC Region AS path length visible: 12
Number of APNIC region 32-bit ASNs visible in the Routing Table: 121
Number of APNIC addresses announced to Internet: 42456096
Equivalent to 2 /8s, 135 /16s and 212 /24s
APNIC AS Blocks 4608-4864, 7467-7722, 9216-10239, 17408-18431
(pre-ERX allocations) 23552-24575, 37888-38911, 45056-46079, 55296-56319,
58368-59391, 63488-64098, 64297-64395, 131072-147769
APNIC Address Blocks 1/8, 14/8, 27/8, 36/8, 39/8, 42/8, 43/8,
49/8, 58/8, 59/8, 60/8, 61/8, 101/8, 103/8,
106/8, 110/8, 111/8, 112/8, 113/8, 114/8, 115/8,
116/8, 117/8, 118/8, 119/8, 120/8, 121/8, 122/8,
123/8, 124/8, 125/8, 126/8, 133/8, 150/8, 153/8,
163/8, 171/8, 175/8, 180/8, 182/8, 183/8, 202/8,
203/8, 210/8, 211/8, 218/8, 219/8, 220/8, 221/8,
222/8, 223/8,
ARIN Region Analysis Summary
----------------------------
Prefixes being announced by ARIN Region ASes: 6880
Total ARIN prefixes after maximum aggregation: 3703
ARIN Deaggregation factor: 1.86
Prefixes being announced from the ARIN address blocks: 6902
Unique aggregates announced from the ARIN address blocks: 4113
ARIN Region origin ASes present in the Internet Routing Table: 1114
ARIN Prefixes per ASN: 6.20
ARIN Region origin ASes announcing only one prefix: 404
ARIN Region transit ASes present in the Internet Routing Table: 152
Average ARIN Region AS path length visible: 4.4
Max ARIN Region AS path length visible: 14
Number of ARIN region 32-bit ASNs visible in the Routing Table: 141
Number of ARIN addresses announced to Internet: 86050000
Equivalent to 5 /8s, 33 /16s and 4 /24s
ARIN AS Blocks 1-1876, 1902-2042, 2044-2046, 2048-2106
(pre-ERX allocations) 2138-2584, 2615-2772, 2823-2829, 2880-3153
3354-4607, 4865-5119, 5632-6655, 6912-7466
7723-8191, 10240-12287, 13312-15359, 16384-17407
18432-20479, 21504-23551, 25600-26591,
26624-27647, 29696-30719, 31744-33791
35840-36863, 39936-40959, 46080-47103
53248-55295, 62464-63487, 64198-64296, 393216-401308
ARIN Address Blocks 3/8, 4/8, 6/8, 7/8, 8/8, 9/8, 11/8,
12/8, 13/8, 15/8, 16/8, 17/8, 18/8, 19/8,
20/8, 21/8, 22/8, 23/8, 24/8, 26/8, 28/8,
29/8, 30/8, 32/8, 33/8, 34/8, 35/8, 38/8,
40/8, 44/8, 47/8, 48/8, 50/8, 52/8, 53/8,
54/8, 55/8, 56/8, 57/8, 63/8, 64/8, 65/8,
66/8, 67/8, 68/8, 69/8, 70/8, 71/8, 72/8,
73/8, 74/8, 75/8, 76/8, 96/8, 97/8, 98/8,
99/8, 100/8, 104/8, 107/8, 108/8, 128/8, 129/8,
130/8, 131/8, 132/8, 134/8, 135/8, 136/8, 137/8,
138/8, 139/8, 140/8, 142/8, 143/8, 144/8, 146/8,
147/8, 148/8, 149/8, 152/8, 155/8, 156/8, 157/8,
158/8, 159/8, 160/8, 161/8, 162/8, 164/8, 165/8,
166/8, 167/8, 168/8, 169/8, 170/8, 172/8, 173/8,
174/8, 184/8, 192/8, 198/8, 199/8, 204/8, 205/8,
206/8, 207/8, 208/8, 209/8, 214/8, 215/8, 216/8,
RIPE Region Analysis Summary
----------------------------
Prefixes being announced by RIPE Region ASes: 3002
Total RIPE prefixes after maximum aggregation: 2575
RIPE Deaggregation factor: 1.17
Prefixes being announced from the RIPE address blocks: 2989
Unique aggregates announced from the RIPE address blocks: 2621
RIPE Region origin ASes present in the Internet Routing Table: 585
RIPE Prefixes per ASN: 5.11
RIPE Region origin ASes announcing only one prefix: 283
RIPE Region transit ASes present in the Internet Routing Table: 99
Average RIPE Region AS path length visible: 3.9
Max RIPE Region AS path length visible: 15
Number of RIPE region 32-bit ASNs visible in the Routing Table: 112
Number of RIPE addresses announced to Internet: 57304832
Equivalent to 3 /8s, 106 /16s and 103 /24s
RIPE AS Blocks 1877-1901, 2043, 2047, 2107-2136, 2585-2614
(pre-ERX allocations) 2773-2822, 2830-2879, 3154-3353, 5377-5631
6656-6911, 8192-9215, 12288-13311, 15360-16383
20480-21503, 24576-25599, 28672-29695
30720-31743, 33792-35839, 38912-39935
40960-45055, 47104-52223, 56320-58367
59392-61439, 61952-62463, 64396-64495
196608-213403
RIPE Address Blocks 2/8, 5/8, 25/8, 31/8, 37/8, 46/8, 51/8,
62/8, 77/8, 78/8, 79/8, 80/8, 81/8, 82/8,
83/8, 84/8, 85/8, 86/8, 87/8, 88/8, 89/8,
90/8, 91/8, 92/8, 93/8, 94/8, 95/8, 109/8,
141/8, 145/8, 151/8, 176/8, 178/8, 185/8, 188/8,
193/8, 194/8, 195/8, 212/8, 213/8, 217/8,
LACNIC Region Analysis Summary
------------------------------
Prefixes being announced by LACNIC Region ASes: 1462
Total LACNIC prefixes after maximum aggregation: 586
LACNIC Deaggregation factor: 2.49
Prefixes being announced from the LACNIC address blocks: 1460
Unique aggregates announced from the LACNIC address blocks: 813
LACNIC Region origin ASes present in the Internet Routing Table: 174
LACNIC Prefixes per ASN: 8.39
LACNIC Region origin ASes announcing only one prefix: 68
LACNIC Region transit ASes present in the Internet Routing Table: 23
Average LACNIC Region AS path length visible: 5.2
Max LACNIC Region AS path length visible: 13
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 72
Number of LACNIC addresses announced to Internet: 4188224
Equivalent to 0 /8s, 63 /16s and 232 /24s
LACNIC AS Blocks 26592-26623, 27648-28671, 52224-53247,
61440-61951, 64099-64197, 262144-272796 + ERX transfers
LACNIC Address Blocks 177/8, 179/8, 181/8, 186/8, 187/8, 189/8, 190/8,
191/8, 200/8, 201/8,
AfriNIC Region Analysis Summary
-------------------------------
Prefixes being announced by AfriNIC Region ASes: 906
Total AfriNIC prefixes after maximum aggregation: 191
AfriNIC Deaggregation factor: 4.74
Prefixes being announced from the AfriNIC address blocks: 906
Unique aggregates announced from the AfriNIC address blocks: 293
AfriNIC Region origin ASes present in the Internet Routing Table: 49
AfriNIC Prefixes per ASN: 18.49
AfriNIC Region origin ASes announcing only one prefix: 23
AfriNIC Region transit ASes present in the Internet Routing Table: 11
Average AfriNIC Region AS path length visible: 4.2
Max AfriNIC Region AS path length visible: 13
Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 26
Number of AfriNIC addresses announced to Internet: 2665728
Equivalent to 0 /8s, 40 /16s and 173 /24s
AfriNIC AS Blocks 36864-37887, 327680-329727 & ERX transfers
AfriNIC Address Blocks 41/8, 45/8, 102/8, 105/8, 154/8, 196/8, 197/8,
APNIC Region per AS prefix count summary
----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
2907 242 1983 151 SINET-AS Research Organization of Infor
1237 188 74 135 KREONET-AS-KR KISTI, KR
7575 180 330 126 AARNET-AS-AP Australian Academic and Re
58647 137 16 1 KAGAWAU-AS Kagawa University, JP
4538 110 4160 69 ERX-CERNET-BKB China Education and Rese
4621 81 37 10 UNINET-AS-AP UNINET-, TH
4762 65 4 1 MAHIDOL-BORDER-AS Mahidol University, T
23570 59 5 11 INCHEON-AS-KR UNIVERSITY OF INCHEON, KR
9317 49 16 1 ITISNET-AS INHA UNIVERSITY, KR
45773 47 3 5 HECPERN-AS-PK PERN AS Content Servie Pr
Complete listing at https://bgp.nsrc.org/REN/CERNET/data-ASnet-APNIC
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
7896 241 51 7 NU-AS, US
5786 195 16 1 UPRENET, PR
2152 156 507 85 CSUNET-NW, US
18558 137 18 4 NETBLK-RCOEK, US
2920 111 34 6 LACOE, US
21976 86 51 18 NJEDGE-NET, US
1736 80 16 1 MU-AS, US
3 78 528 13 MIT-GATEWAYS, US
3477 72 71 42 NOAA-NWAVE, US
22742 67 52 32 CT-EDU-NET, US
Complete listing at https://bgp.nsrc.org/REN/CERNET/data-ASnet-ARIN
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
680 275 1998 237 DFN Verein zur Foerderung eines Deutsch
786 186 1763 184 JANET Jisc Services Limited, GB
559 115 550 106 SWITCH Peering requests: peering at switch
1103 98 1520 85 SURFNET-NL SURFnet, The Netherlands, NL
137 82 677 77 ASGARR Consortium GARR, IT
553 72 449 72 BELWUE BelWue-Koordination, DE
2200 66 647 61 FR-RENATER Reseau National de telecommu
2614 61 32 58 ROEDUNET, RO
1930 57 81 52 RCCN Fundacao para a Ciencia e a Tecnol
1653 52 151 49 SUNET SUNET Swedish University Network,
Complete listing at https://bgp.nsrc.org/REN/CERNET/data-ASnet-RIPE
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
1916 181 207 41 Associacao Rede Nacional de Ensino e Pe
28391 152 10 66 Universidad Juarez Autonoma de Tabasco,
11340 94 24 54 Red Universitaria Nacional, CL
1251 65 37 20 FUNDACAO DE AMPARO A PESQUISA DO ESTADO
2715 58 102 38 Fundacao Carlos Chagas Filho de Amparo
19611 44 17 2 Associacao Antonio Vieira - Unisinos, B
4270 43 16 1 Red de Interconexion Universitaria, AR
61468 41 3 15 CEDIA, EC
28614 38 2 2 Fundacao Universidade Regional de Blume
28571 37 26 15 UNIVERSIDADE DE SAO PAULO, BR
Complete listing at https://bgp.nsrc.org/REN/CERNET/data-ASnet-LACNIC
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
2018 342 319 74 TENET-1, ZA
327687 137 28 3 RENU, UG
36914 99 82 3 KENET-AS, KE
2561 72 5 31 EUN, EG
8094 54 48 9 PUKNET, ZA
327700 37 16 1 MoRENet, MZ
37215 32 8 1 MAREN, MW
6879 24 2 9 ENSTINET-, EG
37182 14 8 1 TERNET, TZ
37074 11 8 2 UG-AS, GH
Complete listing at https://bgp.nsrc.org/REN/CERNET/data-ASnet-AFRINIC
Global Per AS prefix count summary
----------------------------------
ASN No of nets /20 equiv MaxAgg Description
2018 342 319 74 TENET-1, ZA
680 275 1998 237 DFN Verein zur Foerderung eines Deutsch
2907 242 1983 151 SINET-AS Research Organization of Infor
7896 241 51 7 NU-AS, US
5786 195 16 1 UPRENET, PR
1237 188 74 135 KREONET-AS-KR KISTI, KR
786 186 1763 184 JANET Jisc Services Limited, GB
1916 181 207 41 Associacao Rede Nacional de Ensino e Pe
7575 180 330 126 AARNET-AS-AP Australian Academic and Re
2152 156 507 85 CSUNET-NW, US
Complete listing at https://bgp.nsrc.org/REN/CERNET/data-ASnet
Global Per AS Maximum Aggregation summary
-----------------------------------------
ASN No of nets Net Savings Description
7896 241 234 NU-AS, US
5786 195 194 UPRENET, PR
1916 181 140 Associacao Rede Nacional de Ensino e Pesquisa,
58647 137 136 KAGAWAU-AS Kagawa University, JP
327687 137 134 RENU, UG
18558 137 133 NETBLK-RCOEK, US
2920 111 105 LACOE, US
36914 99 96 KENET-AS, KE
2907 242 91 SINET-AS Research Organization of Information a
28391 152 86 Universidad Juarez Autonoma de Tabasco, MX
Complete listing at https://bgp.nsrc.org/REN/CERNET/data-CIDRnet
List of Unregistered Origin ASNs (Global)
-----------------------------------------
Bad AS Designation Net Originated Transit AS Transit AS Name
19658 UNALLOCATED 65.205.131.0/24 11096 FLORIDANET, US
14822 UNALLOCATED 140.163.0.0/16 10466 MAGPI, US
14822 UNALLOCATED 140.163.0.0/17 10466 MAGPI, US
14822 UNALLOCATED 140.163.6.0/24 10466 MAGPI, US
14822 UNALLOCATED 140.163.64.0/24 10466 MAGPI, US
14822 UNALLOCATED 140.163.70.0/24 10466 MAGPI, US
14822 UNALLOCATED 140.163.128.0/17 10466 MAGPI, US
22063 UNALLOCATED 153.10.0.0/16 2152 CSUNET-NW, US
394784 UNALLOCATED 192.107.242.0/24 40831 PHS, US
19658 UNALLOCATED 199.27.241.0/24 11096 FLORIDANET, US
Complete listing at https://bgp.nsrc.org/REN/CERNET/data-badAS
Prefixes from private and non-routed address space (Global)
-----------------------------------------------------------
Prefix Origin AS Description
192.88.99.0/24 1103 SURFNET-NL SURFnet, The Netherlands, NL
Complete listing at https://bgp.nsrc.org/REN/CERNET/data-dsua
Advertised Unallocated Addresses
--------------------------------
Unassigned Network ASN Information AS Name
192.31.196.0/24 Origin: 112 UNASSIGNED
192.31.196.0/24 Transit: 1103 SURFNET-NL SURFnet, The Netherlands, NL
192.88.99.0/24 Origin: 1103 SURFNET-NL SURFnet, The Netherlands, NL
192.88.99.0/24 Transit: 20965 GEANT The GEANT IP Service, NL
192.107.242.0/24 Origin: 394784 UNASSIGNED
192.107.242.0/24 Transit: 40831 PHS, US
205.166.145.0/24 Origin: 394784 UNASSIGNED
205.166.145.0/24 Transit: 40831 PHS, US
Complete listing at https://bgp.nsrc.org/REN/CERNET/data-add-IANA
Number of prefixes announced per prefix length (Global)
-------------------------------------------------------
/1:0 /2:0 /3:0 /4:0 /5:0 /6:0
/7:0 /8:0 /9:1 /10:2 /11:1 /12:10
/13:18 /14:32 /15:110 /16:1894 /17:363 /18:399
/19:464 /20:700 /21:695 /22:1136 /23:1126 /24:8064
/25:30 /26:24 /27:33 /28:1 /29:0 /30:0
/31:0 /32:0
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
36914 86 99 KENET-AS, KE
23024 53 56 OCDE, US
28614 32 38 Fundacao Universidade Regional de Blumenau, BR
25977 31 45 HCCS, US
327700 31 37 MoRENet, MZ
263282 30 37 FUNDACAO UNIVERSIDADE DO OESTE DE SANTA CATARIN
27609 29 45 USC-UNIVERSITY-HOSPITAL, US
32440 29 43 LONI, US
40326 29 33 ECKERD-COLLEGE, US
200521 29 47 SEAP-AGE, ES
Complete listing at https://bgp.nsrc.org/REN/CERNET/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:3 5:15 8:2 12:1 18:41 23:8
24:6 31:6 37:6 38:9 40:1 41:147
44:5 45:53 46:6 47:1 49:4 50:1
52:1 59:3 61:3 62:6 63:34 64:46
65:1 66:36 67:43 68:8 69:21 71:1
72:11 74:20 76:32 77:6 78:3 79:10
80:11 81:28 82:2 83:7 84:9 85:21
86:6 87:1 88:1 89:10 91:40 93:19
94:4 95:4 96:5 97:1 98:2 102:12
103:157 104:15 108:8 109:6 110:3 111:20
112:4 114:23 116:5 117:61 119:3 121:17
125:1 128:81 129:173 130:95 131:47 132:61
133:138 134:94 136:187 137:139 138:10 139:5
140:36 141:2 142:41 143:37 144:32 146:124
147:58 148:159 149:13 150:34 151:6 152:75
153:11 154:24 155:49 156:65 157:25 158:9
159:19 160:25 161:16 162:19 163:59 164:23
165:54 166:1 167:16 168:130 169:10 170:51
172:2 173:2 175:12 176:8 177:10 178:1
179:11 180:5 181:11 182:6 184:6 185:33
186:3 187:17 188:12 189:3 190:48 191:36
192:1138 193:236 194:119 195:91 196:179 197:5
198:388 199:200 200:254 201:39 202:360 203:393
204:301 205:125 206:94 207:116 208:56 209:102
210:110 211:13 212:39 213:2 216:80 217:14
218:6 219:1 220:16 222:2
End of report
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