[REN-BGP-stats-all] Global R&E Routing Table Report - CERNET (R&E) view
REN Routing Table Report
cscora at frr.nsrc.org
Wed Dec 22 20:10:30 UTC 2021
Global R&E Routing Table Report 20:10 GMT Wed 22 Dec, 2021
BGP Table (R&E) as seen at CERNET.
Report Website: https://bgp.nsrc.org/REN
Detailed Analysis: https://bgp.nsrc.org/REN/CERNET/
Analysis Summary
----------------
BGP routing table entries examined: 16734
Prefixes after maximum aggregation (per Origin AS): 9700
Deaggregation factor: 1.73
Unique aggregates announced (without unneeded subnets): 10851
Total ASes present in the Internet Routing Table: 2563
Prefixes per ASN: 6.53
Origin-only ASes present in the Internet Routing Table: 2201
Origin ASes announcing only one prefix: 1033
Transit ASes present in the Internet Routing Table: 362
Transit-only ASes present in the Internet Routing Table: 50
Average AS path length visible in the Internet Routing Table: 4.3
Max AS path length visible: 15
Max AS path prepend of ASN ( 10497) 11
Prefixes from unregistered ASNs in the Routing Table: 2
Number of instances of unregistered ASNs: 2
Number of 32-bit ASNs allocated by the RIRs: 38158
Number of 32-bit ASNs visible in the Routing Table: 528
Prefixes from 32-bit ASNs in the Routing Table: 1457
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: 2
Number of addresses announced to Internet: 196426704
Equivalent to 11 /8s, 181 /16s and 59 /24s
Percentage of available address space announced: 5.3
Percentage of allocated address space announced: 5.3
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: 1976
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 3514
Total APNIC prefixes after maximum aggregation: 2002
APNIC Deaggregation factor: 1.76
Prefixes being announced from the APNIC address blocks: 3516
Unique aggregates announced from the APNIC address blocks: 2329
APNIC Region origin ASes present in the Internet Routing Table: 460
APNIC Prefixes per ASN: 7.64
APNIC Region origin ASes announcing only one prefix: 200
APNIC Region transit ASes present in the Internet Routing Table: 50
Average APNIC Region AS path length visible: 4.5
Max APNIC Region AS path length visible: 15
Number of APNIC region 32-bit ASNs visible in the Routing Table: 134
Number of APNIC addresses announced to Internet: 44815872
Equivalent to 2 /8s, 171 /16s and 214 /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, 131072-151865
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: 7418
Total ARIN prefixes after maximum aggregation: 4124
ARIN Deaggregation factor: 1.80
Prefixes being announced from the ARIN address blocks: 7432
Unique aggregates announced from the ARIN address blocks: 4614
ARIN Region origin ASes present in the Internet Routing Table: 1150
ARIN Prefixes per ASN: 6.46
ARIN Region origin ASes announcing only one prefix: 421
ARIN Region transit ASes present in the Internet Routing Table: 158
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: 157
Number of ARIN addresses announced to Internet: 86721456
Equivalent to 5 /8s, 43 /16s and 67 /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: 3407
Total RIPE prefixes after maximum aggregation: 2774
RIPE Deaggregation factor: 1.23
Prefixes being announced from the RIPE address blocks: 3391
Unique aggregates announced from the RIPE address blocks: 2773
RIPE Region origin ASes present in the Internet Routing Table: 672
RIPE Prefixes per ASN: 5.05
RIPE Region origin ASes announcing only one prefix: 317
RIPE Region transit ASes present in the Internet Routing Table: 103
Average RIPE Region AS path length visible: 3.9
Max RIPE Region AS path length visible: 14
Number of RIPE region 32-bit ASNs visible in the Routing Table: 134
Number of RIPE addresses announced to Internet: 58148096
Equivalent to 3 /8s, 119 /16s and 69 /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: 1493
Total LACNIC prefixes after maximum aggregation: 609
LACNIC Deaggregation factor: 2.45
Prefixes being announced from the LACNIC address blocks: 1493
Unique aggregates announced from the LACNIC address blocks: 838
LACNIC Region origin ASes present in the Internet Routing Table: 178
LACNIC Prefixes per ASN: 8.39
LACNIC Region origin ASes announcing only one prefix: 73
LACNIC Region transit ASes present in the Internet Routing Table: 25
Average LACNIC Region AS path length visible: 5.1
Max LACNIC Region AS path length visible: 12
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 76
Number of LACNIC addresses announced to Internet: 4066336
Equivalent to 0 /8s, 62 /16s and 12 /24s
LACNIC AS Blocks 26592-26623, 27648-28671, 52224-53247,
61440-61951, 64099-64197, 262144-273820 + 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: 900
Total AfriNIC prefixes after maximum aggregation: 189
AfriNIC Deaggregation factor: 4.76
Prefixes being announced from the AfriNIC address blocks: 900
Unique aggregates announced from the AfriNIC address blocks: 295
AfriNIC Region origin ASes present in the Internet Routing Table: 51
AfriNIC Prefixes per ASN: 17.65
AfriNIC Region origin ASes announcing only one prefix: 22
AfriNIC Region transit ASes present in the Internet Routing Table: 12
Average AfriNIC Region AS path length visible: 3.7
Max AfriNIC Region AS path length visible: 8
Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 27
Number of AfriNIC addresses announced to Internet: 2674432
Equivalent to 0 /8s, 40 /16s and 207 /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 612 2157 457 SINET-AS Research Organization of Infor
1237 188 74 135 KREONET-AS-KR KISTI, KR
7575 177 330 123 AARNET-AS-AP Australian Academic and Re
58647 165 18 2 KAGAWAU-AS Kagawa University, JP
4538 112 4160 69 ERX-CERNET-BKB China Education and Rese
4621 80 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
1659 55 1466 35 ERX-TANET-ASN1 Taiwan Academic Network
9317 49 16 1 ITISNET-AS INHA UNIVERSITY, KR
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 251 51 7 NU-AS, US
376 203 178 152 RISQ-AS, CA
5786 200 16 1 UPRENET, PR
2152 145 507 85 CSUNET-NW, US
18558 134 18 4 NETBLK-RCOEK, US
2920 111 34 6 LACOE, US
21976 85 51 18 NJEDGE-NET, US
1736 80 16 1 MU-AS, US
3 77 496 15 MIT-GATEWAYS, US
3477 72 71 42 NOAA-NWAVE, 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
680 279 1950 245 DFN Verein zur Foerderung eines Deutsch
786 186 1774 183 JANET Jisc Services Limited, GB
8895 143 24 4 ISU Internet Services Unit ISU, SA
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 67 647 61 FR-RENATER Reseau National de telecommu
2614 58 33 56 ROEDUNET, RO
1930 57 81 52 RCCN Fundacao para a Ciencia e a Tecnol
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 176 207 41 Rede Nacional de Ensino e Pesquisa, BR
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
52286 54 4 31 Columbus Networks Guatemala, GT
19611 45 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
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 350 319 74 TENET-1, ZA
36914 197 82 3 KENET-AS, KE
2561 72 5 31 EUN, EG
8094 50 48 4 PUKNET, ZA
327700 42 16 1 MoRENet, MZ
327687 38 28 3 RENU, UG
6879 24 2 9 ENSTINET-, EG
37074 13 8 2 UG-AS, GH
37182 13 8 1 TERNET, TZ
37501 11 49 6 UOFS, ZA
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
2907 612 2157 457 SINET-AS Research Organization of Infor
2018 350 319 74 TENET-1, ZA
680 279 1950 245 DFN Verein zur Foerderung eines Deutsch
7896 251 51 7 NU-AS, US
376 203 178 152 RISQ-AS, CA
5786 200 16 1 UPRENET, PR
36914 197 82 3 KENET-AS, KE
1237 188 74 135 KREONET-AS-KR KISTI, KR
786 186 1774 183 JANET Jisc Services Limited, GB
7575 177 330 123 AARNET-AS-AP Australian Academic and Re
Complete listing at https://bgp.nsrc.org/REN/CERNET/data-ASnet
Global Per AS Maximum Aggregation summary
-----------------------------------------
ASN No of nets Net Savings Description
2018 350 276 TENET-1, ZA
7896 251 244 NU-AS, US
5786 200 199 UPRENET, PR
36914 197 194 KENET-AS, KE
58647 165 163 KAGAWAU-AS Kagawa University, JP
8895 143 139 ISU Internet Services Unit ISU, SA
1916 176 135 Rede Nacional de Ensino e Pesquisa, BR
18558 134 130 NETBLK-RCOEK, US
2920 111 105 LACOE, US
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
22063 UNALLOCATED 153.10.0.0/16 2152 CSUNET-NW, US
19658 UNALLOCATED 199.27.241.0/24 11096 FLORIDANET, US
Complete listing at https://bgp.nsrc.org/REN/CERNET/data-badAS
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
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
/13:17 /14:31 /15:118 /16:1920 /17:378 /18:425
/19:520 /20:783 /21:811 /22:1306 /23:1344 /24:8988
/25:28 /26:22 /27:28 /28:1 /29:0 /30:0
/31:0 /32:0
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
36914 183 197 KENET-AS, KE
8895 138 143 ISU Internet Services Unit ISU, SA
23024 53 56 OCDE, US
327700 37 42 MoRENet, MZ
28614 32 38 Fundacao Universidade Regional de Blumenau, BR
25977 31 45 HCCS, US
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
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 18:42 23:9
24:3 31:6 37:6 38:9 40:1 41:122
44:5 45:44 46:6 47:1 49:4 50:1
52:1 59:3 61:3 62:7 63:34 64:46
66:36 67:43 68:8 69:20 71:1 72:10
74:20 76:33 77:7 78:3 79:10 80:17
81:27 82:5 83:7 84:9 85:33 86:4
87:1 88:1 89:10 91:47 92:1 93:19
94:4 95:5 96:5 97:1 98:2 101:4
102:14 103:176 104:14 108:8 109:9 110:3
111:16 112:4 114:23 116:5 117:61 119:3
121:17 125:1 128:86 129:174 130:93 131:81
132:58 133:139 134:95 136:192 137:79 138:8
139:5 140:36 141:2 142:41 143:35 144:30
145:2 146:126 147:57 148:159 149:13 150:37
151:6 152:75 153:11 154:26 155:50 156:67
157:26 158:10 159:19 160:25 161:16 162:19
163:62 164:46 165:54 166:1 167:16 168:161
169:10 170:53 171:1 172:2 173:2 175:30
176:8 177:13 178:1 179:11 180:5 181:12
182:6 184:7 185:38 186:3 187:18 188:13
189:3 190:50 191:37 192:1256 193:250 194:139
195:93 196:148 197:111 198:427 199:237 200:257
201:39 202:534 203:400 204:314 205:167 206:181
207:166 208:55 209:109 210:107 211:13 212:173
213:4 216:80 217:14 218:6 219:7 220:17
222:2
End of report
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