[REN-BGP-stats] Weekly Global R&E Routing Table Report
REN Routing Table Report
cscora at frr.nsrc.org
Sat Apr 10 22:00:16 UTC 2021
This is an automated weekly mailing describing the state of the Global
Research & Education Routing Table as seen from NSRC's collector.
Daily listings are sent to ren-bgp-stats-all at lists.nsrc.org.
For historical data, please see https://bgp.nsrc.org.
If you have any comments please contact Philip Smith <philip at nsrc.org>.
Global R&E Routing Table Report 22:00 GMT Sat 10 Apr, 2021
Report Website: https://bgp.nsrc.org/REN
Detailed Analysis: https://bgp.nsrc.org/REN/Internet2/
Analysis Summary
----------------
BGP routing table entries examined: 22117
Prefixes after maximum aggregation (per Origin AS): 12070
Deaggregation factor: 1.83
Unique aggregates announced (without unneeded subnets): 14239
Total ASes present in the Internet Routing Table: 2759
Prefixes per ASN: 8.02
Origin-only ASes present in the Internet Routing Table: 2365
Origin ASes announcing only one prefix: 1091
Transit ASes present in the Internet Routing Table: 394
Transit-only ASes present in the Internet Routing Table: 62
Average AS path length visible in the Internet Routing Table: 3.3
Max AS path length visible: 15
Max AS path prepend of ASN ( 10497) 11
Prefixes from unregistered ASNs in the Routing Table: 15
Number of instances of unregistered ASNs: 15
Number of 32-bit ASNs allocated by the RIRs: 35653
Number of 32-bit ASNs visible in the Routing Table: 585
Prefixes from 32-bit ASNs in the Routing Table: 1692
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: 279719352
Equivalent to 16 /8s, 172 /16s and 45 /24s
Percentage of available address space announced: 7.6
Percentage of allocated address space announced: 7.6
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: 3111
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 4705
Total APNIC prefixes after maximum aggregation: 2363
APNIC Deaggregation factor: 1.99
Prefixes being announced from the APNIC address blocks: 4750
Unique aggregates announced from the APNIC address blocks: 2750
APNIC Region origin ASes present in the Internet Routing Table: 569
APNIC Prefixes per ASN: 8.35
APNIC Region origin ASes announcing only one prefix: 245
APNIC Region transit ASes present in the Internet Routing Table: 63
Average APNIC Region AS path length visible: 3.6
Max APNIC Region AS path length visible: 13
Number of APNIC region 32-bit ASNs visible in the Routing Table: 214
Number of APNIC addresses announced to Internet: 47261760
Equivalent to 2 /8s, 209 /16s and 40 /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, 131072-143673
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: 11333
Total ARIN prefixes after maximum aggregation: 6152
ARIN Deaggregation factor: 1.84
Prefixes being announced from the ARIN address blocks: 11242
Unique aggregates announced from the ARIN address blocks: 7548
ARIN Region origin ASes present in the Internet Routing Table: 1230
ARIN Prefixes per ASN: 9.14
ARIN Region origin ASes announcing only one prefix: 438
ARIN Region transit ASes present in the Internet Routing Table: 166
Average ARIN Region AS path length visible: 3.0
Max ARIN Region AS path length visible: 15
Number of ARIN region 32-bit ASNs visible in the Routing Table: 146
Number of ARIN addresses announced to Internet: 165256376
Equivalent to 9 /8s, 217 /16s and 156 /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: 3430
Total RIPE prefixes after maximum aggregation: 2776
RIPE Deaggregation factor: 1.24
Prefixes being announced from the RIPE address blocks: 3486
Unique aggregates announced from the RIPE address blocks: 2834
RIPE Region origin ASes present in the Internet Routing Table: 675
RIPE Prefixes per ASN: 5.16
RIPE Region origin ASes announcing only one prefix: 317
RIPE Region transit ASes present in the Internet Routing Table: 108
Average RIPE Region AS path length visible: 3.7
Max RIPE Region AS path length visible: 14
Number of RIPE region 32-bit ASNs visible in the Routing Table: 128
Number of RIPE addresses announced to Internet: 59805568
Equivalent to 3 /8s, 144 /16s and 143 /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: 1424
Total LACNIC prefixes after maximum aggregation: 582
LACNIC Deaggregation factor: 2.45
Prefixes being announced from the LACNIC address blocks: 1424
Unique aggregates announced from the LACNIC address blocks: 809
LACNIC Region origin ASes present in the Internet Routing Table: 176
LACNIC Prefixes per ASN: 8.09
LACNIC Region origin ASes announcing only one prefix: 72
LACNIC Region transit ASes present in the Internet Routing Table: 27
Average LACNIC Region AS path length visible: 4.0
Max LACNIC Region AS path length visible: 12
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 75
Number of LACNIC addresses announced to Internet: 4640320
Equivalent to 0 /8s, 70 /16s and 206 /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: 1210
Total AfriNIC prefixes after maximum aggregation: 183
AfriNIC Deaggregation factor: 6.61
Prefixes being announced from the AfriNIC address blocks: 1213
Unique aggregates announced from the AfriNIC address blocks: 296
AfriNIC Region origin ASes present in the Internet Routing Table: 44
AfriNIC Prefixes per ASN: 27.57
AfriNIC Region origin ASes announcing only one prefix: 19
AfriNIC Region transit ASes present in the Internet Routing Table: 10
Average AfriNIC Region AS path length visible: 3.3
Max AfriNIC Region AS path length visible: 7
Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 22
Number of AfriNIC addresses announced to Internet: 2754816
Equivalent to 0 /8s, 42 /16s and 9 /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 621 2157 458 SINET-AS Research Organization of Infor
7497 451 245 41 CSTNET-AS-AP Computer Network Informati
1237 187 75 132 KREONET-AS-KR KISTI, KR
7575 186 347 132 AARNET-AS-AP Australian Academic and Re
58647 176 18 2 KAGAWAU-AS Kagawa University, JP
55824 127 18 21 NKN-CORE-NW NKN Core Network, IN
4538 123 4192 72 ERX-CERNET-BKB China Education and Rese
4621 82 37 10 UNINET-AS-AP UNINET-, TH
23570 59 5 11 INCHEON-AS-KR UNIVERSITY OF INCHEON, KR
1659 57 1450 34 ERX-TANET-ASN1 Taiwan Academic Network
Complete listing at https://bgp.nsrc.org/REN/Internet2/data-ASnet-APNIC
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
16509 2209 4073 790 AMAZON-02, US
14618 465 3995 342 AMAZON-AES, US
7896 261 51 7 NU-AS, US
376 236 180 158 RISQ-AS, CA
668 209 718 175 DNIC-AS-00668, US
5786 201 16 1 UPRENET, PR
8075 193 9141 179 MICROSOFT-CORP-MSN-AS-BLOCK, US
2152 160 507 92 CSUNET-NW, US
18558 134 18 4 NETBLK-RCOEK, US
270 118 297 88 AS270, US
Complete listing at https://bgp.nsrc.org/REN/Internet2/data-ASnet-ARIN
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
680 273 1996 235 DFN Verein zur Foerderung eines Deutsch
786 187 1787 185 JANET Jisc Services Limited, GB
8895 171 24 4 ISU Internet Services Unit (ISU), SA
559 115 550 106 SWITCH Peering requests: (peering at switc
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 62 FR-RENATER Reseau National de telecommu
2614 62 32 59 ROEDUNET, RO
1930 56 82 51 RCCN Fundacao para a Ciencia e a Tecnol
Complete listing at https://bgp.nsrc.org/REN/Internet2/data-ASnet-RIPE
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
1916 196 215 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 67 37 20 FUNDACAO DE AMPARO A PESQUISA DO ESTADO
2715 60 102 40 Fundacao Carlos Chagas Filho de Amparo
19611 45 17 2 Associacao Antonio Vieira - Unisinos, B
61468 45 3 15 CEDIA, EC
4270 44 16 1 Red de Interconexion Universitaria, AR
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/Internet2/data-ASnet-LACNIC
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
36914 399 82 3 KENET-AS, KE
2018 325 319 74 TENET-1, ZA
327687 134 28 3 RENU, UG
327700 83 16 1 MoRENet, MZ
2561 74 5 34 EUN, EG
8094 55 48 4 PUKNET, ZA
37215 27 8 1 MAREN, MW
6879 24 2 9 ENSTINET-, EG
37074 11 8 2 UG-AS, GH
37501 11 49 6 UOFS, ZA
Complete listing at https://bgp.nsrc.org/REN/Internet2/data-ASnet-AFRINIC
Global Per AS prefix count summary
----------------------------------
ASN No of nets /20 equiv MaxAgg Description
16509 2209 4073 790 AMAZON-02, US
2907 621 2157 458 SINET-AS Research Organization of Infor
14618 465 3995 342 AMAZON-AES, US
7497 451 245 41 CSTNET-AS-AP Computer Network Informati
36914 399 82 3 KENET-AS, KE
2018 325 319 74 TENET-1, ZA
680 273 1996 235 DFN Verein zur Foerderung eines Deutsch
7896 261 51 7 NU-AS, US
376 236 180 158 RISQ-AS, CA
668 209 718 175 DNIC-AS-00668, US
Complete listing at https://bgp.nsrc.org/REN/Internet2/data-ASnet
Global Per AS Maximum Aggregation summary
-----------------------------------------
ASN No of nets Net Savings Description
7497 451 410 CSTNET-AS-AP Computer Network Information Cente
36914 399 396 KENET-AS, KE
7896 261 254 NU-AS, US
2018 325 251 TENET-1, ZA
5786 201 200 UPRENET, PR
58647 176 174 KAGAWAU-AS Kagawa University, JP
8895 171 167 ISU Internet Services Unit (ISU), SA
2907 621 163 SINET-AS Research Organization of Information a
1916 196 155 Associacao Rede Nacional de Ensino e Pesquisa,
327687 134 131 RENU, UG
Complete listing at https://bgp.nsrc.org/REN/Internet2/data-CIDRnet
List of Unregistered Origin ASNs (Global)
-----------------------------------------
Bad AS Designation Net Originated Transit AS Transit AS Name
36843 UNALLOCATED 64.56.80.0/23 11096 FLORIDANET, US
19658 UNALLOCATED 65.205.131.0/24 11096 FLORIDANET, US
36843 UNALLOCATED 108.59.20.0/24 11096 FLORIDANET, US
36843 UNALLOCATED 108.59.23.0/24 11096 FLORIDANET, US
36843 UNALLOCATED 131.91.183.0/24 11096 FLORIDANET, US
36843 UNALLOCATED 131.91.252.0/22 11096 FLORIDANET, US
36843 UNALLOCATED 146.201.218.0/24 11096 FLORIDANET, US
36843 UNALLOCATED 146.201.219.0/24 11096 FLORIDANET, US
22063 UNALLOCATED 153.10.0.0/16 2152 CSUNET-NW, US
36843 UNALLOCATED 162.223.23.0/24 11096 FLORIDANET, US
Complete listing at https://bgp.nsrc.org/REN/Internet2/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/Internet2/data-dsua
Advertised Unallocated Addresses
--------------------------------
Unassigned Network ASN Information AS Name
192.31.196.0/24 Origin: 112 UNASSIGNED
Transit: 1103 SURFNET-NL SURFnet, The Netherlands, NL
192.88.99.0/24 Origin: 1103 SURFNET-NL SURFnet, The Netherlands, NL
Transit: 11537 INTERNET2-RESEARCH-EDU, US
Complete listing at https://bgp.nsrc.org/REN/Internet2/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 /10:4 /11:7 /12:21
/13:33 /14:81 /15:194 /16:2147 /17:449 /18:454
/19:622 /20:934 /21:1023 /22:1559 /23:1659 /24:12614
/25:83 /26:64 /27:121 /28:1 /29:46 /30:0
/31:0 /32:0
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
16509 638 2209 AMAZON-02, US
36914 373 399 KENET-AS, KE
8895 166 171 ISU Internet Services Unit (ISU), SA
14618 150 465 AMAZON-AES, US
327700 77 83 MoRENet, MZ
23024 53 56 OCDE, US
1 32 117 LVLT-1, US
28614 32 38 Fundacao Universidade Regional de Blumenau, BR
25977 31 45 HCCS, US
263282 30 37 FUNDACAO UNIVERSIDADE DO OESTE DE SANTA CATARIN
Complete listing at https://bgp.nsrc.org/REN/Internet2/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:4 3:52 4:2 5:15 6:4 8:2
12:1 13:216 14:84 15:9 18:41 23:20
24:6 31:6 34:1 37:6 38:9 40:2
41:267 42:24 44:5 45:67 46:9 47:1
49:10 50:4 52:578 54:113 58:2 59:20
60:4 61:4 62:6 63:34 64:113 65:7
66:41 67:57 68:18 69:42 70:8 71:17
72:16 74:38 75:128 76:165 77:6 78:3
79:10 80:14 81:33 82:5 83:7 84:9
85:37 86:9 87:1 88:2 89:11 91:56
92:1 93:13 94:4 95:4 96:5 97:1
98:8 99:177 101:6 102:5 103:311 104:40
106:1 107:8 108:19 109:8 110:3 111:17
112:4 114:23 115:1 116:6 117:63 118:35
119:18 121:29 122:12 123:8 124:40 125:13
128:78 129:226 130:112 131:113 132:58 133:137
134:88 135:1 136:203 137:161 138:14 139:16
140:50 141:3 142:61 143:38 144:81 146:125
147:67 148:167 149:16 150:44 151:6 152:77
153:11 154:25 155:58 156:65 157:29 158:47
159:117 160:33 161:18 162:46 163:68 164:47
165:19 166:1 167:17 168:151 169:9 170:93
171:1 172:6 173:19 174:1 175:32 176:11
177:7 178:2 179:13 180:21 182:6 184:4
185:48 186:3 187:18 188:14 189:6 190:43
191:35 192:1477 193:253 194:143 195:103 196:168
197:191 198:506 199:304 200:247 201:39 202:600
203:406 204:383 205:207 206:197 207:189 208:83
209:130 210:173 211:14 212:161 213:13 214:7
216:91 217:16 218:26 219:8 220:24 222:4
223:1
End of report
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