[REN-BGP-stats] Weekly Global IPv4 R&E Routing Table Report
REN Routing Table Report
cscora at frr.nsrc.org
Sat Apr 9 22:01:04 UTC 2022
This is an automated weekly mailing describing the state of the IPv4
Research & Education Routing Table received by NSRC's collector
from Internet2's network.
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>.
IPv4 R&E Routing Table Report 22:00 GMT Sat 09 Apr, 2022
BGP Table (R&E) as seen at Internet2.
Report Website: https://bgp.nsrc.org/REN
Detailed Analysis: https://bgp.nsrc.org/REN/Internet2/
Analysis Summary
----------------
BGP routing table entries examined: 21956
Prefixes after maximum aggregation (per Origin AS): 12248
Deaggregation factor: 1.79
Unique aggregates announced (without unneeded subnets): 14127
Number of IPv4 prefixes with a valid ROA: 13919
Number of IPv4 prefixes with an invalid ROA: 76
Number of IPv4 prefixes with no ROA: 29891
Total ASes present in the Internet Routing Table: 2726
Prefixes per ASN: 8.05
Origin-only ASes present in the Internet Routing Table: 2346
Origin ASes announcing only one prefix: 1062
Transit ASes present in the Internet Routing Table: 380
Transit-only ASes present in the Internet Routing Table: 59
Average AS path length visible in the Internet Routing Table: 3.3
Max AS path length visible: 16
Max AS path prepend of ASN (211089) 11
Prefixes from unregistered ASNs in the Routing Table: 5
Number of instances of unregistered ASNs: 5
Number of 32-bit ASNs allocated by the RIRs: 39045
Number of 32-bit ASNs visible in the Routing Table: 601
Prefixes from 32-bit ASNs in the Routing Table: 1647
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: 5
Number of addresses announced to Internet: 242678558
Equivalent to 14 /8s, 118 /16s and 251 /24s
Percentage of available address space announced: 6.6
Percentage of allocated address space announced: 6.6
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: 2701
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 4669
Total APNIC prefixes after maximum aggregation: 2298
APNIC Deaggregation factor: 2.03
Prefixes being announced from the APNIC address blocks: 4726
Unique aggregates announced from the APNIC address blocks: 2659
APNIC Region origin ASes present in the Internet Routing Table: 578
APNIC Prefixes per ASN: 8.18
APNIC Region origin ASes announcing only one prefix: 246
APNIC Region transit ASes present in the Internet Routing Table: 68
Average APNIC Region AS path length visible: 4.0
Max APNIC Region AS path length visible: 16
Number of APNIC region 32-bit ASNs visible in the Routing Table: 226
Number of APNIC addresses announced to Internet: 45864000
Equivalent to 2 /8s, 187 /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, 131072-151865
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: 11588
Total ARIN prefixes after maximum aggregation: 6452
ARIN Deaggregation factor: 1.80
Prefixes being announced from the ARIN address blocks: 11465
Unique aggregates announced from the ARIN address blocks: 7590
ARIN Region origin ASes present in the Internet Routing Table: 1236
ARIN Prefixes per ASN: 9.28
ARIN Region origin ASes announcing only one prefix: 435
ARIN Region transit ASes present in the Internet Routing Table: 161
Average ARIN Region AS path length visible: 3.0
Max ARIN Region AS path length visible: 13
Number of ARIN region 32-bit ASNs visible in the Routing Table: 169
Number of ARIN addresses announced to Internet: 132224830
Equivalent to 7 /8s, 225 /16s and 151 /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: 3520
Total RIPE prefixes after maximum aggregation: 2818
RIPE Deaggregation factor: 1.25
Prefixes being announced from the RIPE address blocks: 3583
Unique aggregates announced from the RIPE address blocks: 2905
RIPE Region origin ASes present in the Internet Routing Table: 671
RIPE Prefixes per ASN: 5.34
RIPE Region origin ASes announcing only one prefix: 307
RIPE Region transit ASes present in the Internet Routing Table: 100
Average RIPE Region AS path length visible: 3.6
Max RIPE Region AS path length visible: 15
Number of RIPE region 32-bit ASNs visible in the Routing Table: 134
Number of RIPE addresses announced to Internet: 57972864
Equivalent to 3 /8s, 116 /16s and 152 /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: 1261
Total LACNIC prefixes after maximum aggregation: 495
LACNIC Deaggregation factor: 2.55
Prefixes being announced from the LACNIC address blocks: 1264
Unique aggregates announced from the LACNIC address blocks: 691
LACNIC Region origin ASes present in the Internet Routing Table: 137
LACNIC Prefixes per ASN: 9.23
LACNIC Region origin ASes announcing only one prefix: 59
LACNIC Region transit ASes present in the Internet Routing Table: 21
Average LACNIC Region AS path length visible: 4.0
Max LACNIC Region AS path length visible: 11
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 56
Number of LACNIC addresses announced to Internet: 3926560
Equivalent to 0 /8s, 59 /16s and 234 /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: 913
Total AfriNIC prefixes after maximum aggregation: 180
AfriNIC Deaggregation factor: 5.07
Prefixes being announced from the AfriNIC address blocks: 913
Unique aggregates announced from the AfriNIC address blocks: 277
AfriNIC Region origin ASes present in the Internet Routing Table: 40
AfriNIC Prefixes per ASN: 22.82
AfriNIC Region origin ASes announcing only one prefix: 15
AfriNIC Region transit ASes present in the Internet Routing Table: 12
Average AfriNIC Region AS path length visible: 2.7
Max AfriNIC Region AS path length visible: 9
Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 16
Number of AfriNIC addresses announced to Internet: 2689024
Equivalent to 0 /8s, 41 /16s and 8 /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 585 2084 456 SINET-AS Research Organization of Infor
7497 432 182 24 CSTNET-AS-AP Computer Network Informati
1237 189 74 135 KREONET-AS-KR KISTI, KR
58647 179 18 2 KAGAWAU-AS Kagawa University, JP
7575 176 330 123 AARNET-AS-AP Australian Academic and Re
4538 129 4192 73 ERX-CERNET-BKB China Education and Rese
55824 115 18 11 NKN-CORE-NW NKN Core Network, IN
4621 79 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
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 2599 4549 1164 AMAZON-02, US
14618 590 3988 453 AMAZON-AES, US
7896 252 51 7 NU-AS, US
668 209 702 177 DNIC-AS-00668, US
376 202 178 151 RISQ-AS, CA
5786 183 16 1 UPRENET, PR
2152 152 507 89 CSUNET-NW, US
18558 134 18 4 NETBLK-RCOEK, US
270 120 329 88 AS270, US
1 118 1 45 LVLT-1, 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
680 279 1967 245 DFN Verein zur Foerderung eines Deutsch
786 186 1774 183 JANET Jisc Services Limited, GB
8895 180 24 4 ISU Internet Services Unit ISU, SA
559 115 550 106 SWITCH Peering requests: peering at switch
1103 99 1520 86 SURFNET-NL SURFnet, The Netherlands, NL
2614 95 27 75 ROEDUNET, RO
137 82 677 77 ASGARR Consortium GARR, IT
553 73 449 73 BELWUE BelWue-Koordination, DE
2200 66 647 61 FR-RENATER Reseau National de telecommu
1930 58 81 53 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 175 208 46 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 60 37 20 FUNDACAO DE AMPARO A PESQUISA DO ESTADO
2715 58 102 38 Fundacao Carlos Chagas Filho de Amparo
19611 45 17 2 Associacao Antonio Vieira - Unisinos, B
61468 45 3 15 CEDIA, EC
28614 38 2 2 Fundacao Universidade Regional de Blume
263282 37 5 12 FUNDACAO UNIVERSIDADE DO OESTE DE SANTA
28571 35 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
2018 374 319 74 TENET-1, ZA
36914 209 82 3 KENET-AS, KE
2561 67 4 32 EUN, EG
8094 50 48 4 PUKNET, ZA
327687 37 28 3 RENU, UG
327700 35 16 1 MoRENet, MZ
6879 24 2 9 ENSTINET-, EG
37182 17 8 1 TERNET, TZ
37074 13 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 2599 4549 1164 AMAZON-02, US
14618 590 3988 453 AMAZON-AES, US
2907 585 2084 456 SINET-AS Research Organization of Infor
7497 432 182 24 CSTNET-AS-AP Computer Network Informati
2018 374 319 74 TENET-1, ZA
680 279 1967 245 DFN Verein zur Foerderung eines Deutsch
7896 252 51 7 NU-AS, US
668 209 702 177 DNIC-AS-00668, US
36914 209 82 3 KENET-AS, KE
376 202 178 151 RISQ-AS, CA
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 432 408 CSTNET-AS-AP Computer Network Information Cente
2018 374 300 TENET-1, ZA
7896 252 245 NU-AS, US
36914 209 206 KENET-AS, KE
5786 183 182 UPRENET, PR
58647 179 177 KAGAWAU-AS Kagawa University, JP
8895 180 176 ISU Internet Services Unit ISU, SA
14618 590 137 AMAZON-AES, US
18558 134 130 NETBLK-RCOEK, US
2907 585 129 SINET-AS Research Organization of Information a
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
22063 UNALLOCATED 153.10.0.0/16 2152 CSUNET-NW, US
22226 UNALLOCATED 156.1.0.0/16 2152 CSUNET-NW, US
19658 UNALLOCATED 199.27.241.0/24 11096 FLORIDANET, US
395514 UNALLOCATED 205.213.88.0/24 2381 WISCNET1-AS, US
394607 UNALLOCATED 216.100.93.0/24 23024 OCDE, US
Complete listing at https://bgp.nsrc.org/REN/Internet2/data-badAS
Prefixes from the Special Purpose Address Registry (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-spar
Advertised Unallocated Addresses
--------------------------------
Unassigned Network ASN Information AS Name
103.151.24.0/24 Origin: 16509 AMAZON-02, US
103.151.24.0/24 Transit: 11537 INTERNET2-RESEARCH-EDU, US
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: 11537 INTERNET2-RESEARCH-EDU, US
198.135.168.0/24 Origin: 14618 AMAZON-AES, US
198.135.168.0/24 Transit: 16509 AMAZON-02, US
216.169.147.0/24 Origin: 14618 AMAZON-AES, US
216.169.147.0/24 Transit: 16509 AMAZON-02, 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 /10:2 /11:3 /12:17
/13:24 /14:59 /15:174 /16:2091 /17:458 /18:469
/19:592 /20:974 /21:981 /22:1580 /23:1760 /24:12446
/25:81 /26:57 /27:121 /28:7 /29:51 /30:0
/31:3 /32:5
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
16509 404 2599 AMAZON-02, US
36914 196 209 KENET-AS, KE
14618 195 590 AMAZON-AES, US
8895 175 180 ISU Internet Services Unit ISU, SA
23024 53 114 OCDE, US
1 35 118 LVLT-1, US
28614 32 38 Fundacao Universidade Regional de Blumenau, BR
25977 31 45 HCCS, US
327700 31 35 MoRENet, MZ
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)
----------------------------------------------
1:3 3:84 4:2 5:16 6:4 8:2
12:1 13:45 14:85 15:65 16:5 18:52
23:45 24:3 31:6 35:1 37:7 38:9
40:1 41:128 42:10 44:5 45:43 46:11
47:1 49:10 50:8 52:714 54:245 58:1
59:20 60:4 61:3 62:7 63:38 64:143
65:5 66:56 67:61 68:17 69:45 70:28
71:17 72:17 74:41 76:38 77:9 78:3
79:10 80:15 81:28 82:6 83:6 84:5
85:42 86:4 87:1 88:1 89:12 91:52
93:23 94:4 95:5 96:6 97:1 98:11
99:55 101:6 102:10 103:341 104:107 107:7
108:21 109:12 110:4 111:20 114:23 116:7
117:61 118:32 119:23 121:27 122:11 123:8
124:39 125:4 128:87 129:185 130:148 131:89
132:58 133:140 134:99 135:1 136:188 137:101
138:9 139:16 140:51 141:4 142:58 143:33
144:67 145:2 146:129 147:65 148:200 149:15
150:40 151:7 152:81 153:13 154:26 155:62
156:69 157:41 158:46 159:123 160:30 161:29
162:51 163:74 164:28 165:64 166:1 167:22
168:150 169:12 170:64 171:1 172:10 173:16
174:1 175:31 176:12 177:12 178:2 179:10
180:21 182:6 184:6 185:60 186:3 187:19
188:14 189:5 190:17 191:33 192:1492 193:314
194:128 195:77 196:162 197:115 198:496 199:323
200:201 201:39 202:638 203:429 204:354 205:194
206:209 207:190 208:103 209:132 210:183 211:15
212:150 213:16 214:7 216:145 217:11 218:22
219:6 220:16 222:5 223:3
End of report
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