[REN-BGP-stats-all] IPv4 R&E Routing Table Report - Internet2 (R&E) view
REN Routing Table Report
cscora at frr.nsrc.org
Thu Mar 9 22:00:48 UTC 2023
IPv4 R&E Routing Table Report 22:00 GMT Thu 09 Mar, 2023
IPv4 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: 23094
Prefixes after maximum aggregation (per Origin AS): 12785
Deaggregation factor: 1.81
Unique aggregates announced (without unneeded subnets): 14941
Number of IPv4 prefixes with a valid ROA: 8434
Number of IPv4 prefixes with an invalid ROA: 94
Number of IPv4 prefixes with no ROA: 14566
Total ASes present in the Internet Routing Table: 2784
Prefixes per ASN: 8.30
Origin-only ASes present in the Internet Routing Table: 2408
Origin ASes announcing only one prefix: 1059
Transit ASes present in the Internet Routing Table: 376
Transit-only ASes present in the Internet Routing Table: 63
Paths with bogon ASNs present in the IPv4 Routing Table: 0
Average AS path length visible in the Internet Routing Table: 3.3
Max AS path length visible: 18
Max AS path prepend of ASN (395156) 12
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: 41390
Number of 32-bit ASNs visible in the Routing Table: 644
Prefixes from 32-bit ASNs in the Routing Table: 1802
Number of bogon 32-bit ASNs visible in the Routing Table: 0
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 5
Number of addresses announced to Internet: 242406168
Equivalent to 14 /8s, 114 /16s and 211 /24s
Percentage of available address space announced: 6.5
Percentage of allocated address space announced: 6.5
Percentage of available address space allocated: 100.0
Percentage of address space in use by end-sites: 99.6
Total number of prefixes smaller than registry allocations: 3016
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 4710
Total APNIC prefixes after maximum aggregation: 2305
APNIC Deaggregation factor: 2.04
Prefixes being announced from the APNIC address blocks: 4782
Unique aggregates announced from the APNIC address blocks: 2705
APNIC Region origin ASes present in the Internet Routing Table: 578
APNIC Prefixes per ASN: 8.27
APNIC Region origin ASes announcing only one prefix: 246
APNIC Region transit ASes present in the Internet Routing Table: 63
Average APNIC Region AS path length visible: 3.9
Max APNIC Region AS path length visible: 14
Number of APNIC region 32-bit ASNs visible in the Routing Table: 225
Number of APNIC addresses announced to Internet: 45845312
Equivalent to 2 /8s, 187 /16s and 139 /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: 12346
Total ARIN prefixes after maximum aggregation: 6837
ARIN Deaggregation factor: 1.81
Prefixes being announced from the ARIN address blocks: 12138
Unique aggregates announced from the ARIN address blocks: 8083
ARIN Region origin ASes present in the Internet Routing Table: 1249
ARIN Prefixes per ASN: 9.72
ARIN Region origin ASes announcing only one prefix: 433
ARIN Region transit ASes present in the Internet Routing Table: 161
Average ARIN Region AS path length visible: 2.9
Max ARIN Region AS path length visible: 18
Number of ARIN region 32-bit ASNs visible in the Routing Table: 187
Number of ARIN addresses announced to Internet: 131893560
Equivalent to 7 /8s, 220 /16s and 137 /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: 3617
Total RIPE prefixes after maximum aggregation: 2863
RIPE Deaggregation factor: 1.26
Prefixes being announced from the RIPE address blocks: 3750
Unique aggregates announced from the RIPE address blocks: 3067
RIPE Region origin ASes present in the Internet Routing Table: 681
RIPE Prefixes per ASN: 5.51
RIPE Region origin ASes announcing only one prefix: 300
RIPE Region transit ASes present in the Internet Routing Table: 99
Average RIPE Region AS path length visible: 3.6
Max RIPE Region AS path length visible: 12
Number of RIPE region 32-bit ASNs visible in the Routing Table: 142
Number of RIPE addresses announced to Internet: 58001920
Equivalent to 3 /8s, 117 /16s and 10 /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: 1393
Total LACNIC prefixes after maximum aggregation: 569
LACNIC Deaggregation factor: 2.45
Prefixes being announced from the LACNIC address blocks: 1397
Unique aggregates announced from the LACNIC address blocks: 790
LACNIC Region origin ASes present in the Internet Routing Table: 157
LACNIC Prefixes per ASN: 8.90
LACNIC Region origin ASes announcing only one prefix: 57
LACNIC Region transit ASes present in the Internet Routing Table: 23
Average LACNIC Region AS path length visible: 4.1
Max LACNIC Region AS path length visible: 11
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 62
Number of LACNIC addresses announced to Internet: 4010400
Equivalent to 0 /8s, 61 /16s and 49 /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: 1023
Total AfriNIC prefixes after maximum aggregation: 206
AfriNIC Deaggregation factor: 4.97
Prefixes being announced from the AfriNIC address blocks: 1022
Unique aggregates announced from the AfriNIC address blocks: 291
AfriNIC Region origin ASes present in the Internet Routing Table: 52
AfriNIC Prefixes per ASN: 19.65
AfriNIC Region origin ASes announcing only one prefix: 23
AfriNIC Region transit ASes present in the Internet Routing Table: 12
Average AfriNIC Region AS path length visible: 3.0
Max AfriNIC Region AS path length visible: 14
Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 28
Number of AfriNIC addresses announced to Internet: 2653440
Equivalent to 0 /8s, 40 /16s and 125 /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 598 2157 464 SINET-AS Research Organization of Infor
7497 435 182 24 CSTNET-AS-AP Computer Network Informati
1237 192 74 139 KREONET-AS-KR KISTI, KR
58647 178 18 2 KAGAWAU-AS Kagawa University, JP
7575 173 329 119 AARNET-AS-AP Australian Academic and Re
4538 130 4192 73 ERX-CERNET-BKB China Education and Rese
55824 119 18 12 NKN-CORE-NW NKN Core Network, IN
4621 70 37 10 UNINET-AS-AP UNINET-, TH
9411 66 16 2 NONTRINET-AS-AP Kasetsart University, T
4762 65 4 1 MAHIDOL-BORDER-AS Mahidol University, T
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 3220 4623 1404 AMAZON-02, US
14618 747 3994 555 AMAZON-AES, US
668 216 702 180 DNIC-AS-00668, US
376 199 178 149 RISQ-AS, CA
5786 198 16 1 UPRENET, PR
2152 153 507 92 CSUNET-NW, US
18558 134 18 4 NETBLK-RCOEK, US
81 129 521 32 NCREN, US
1 122 2 46 LVLT-1, US
270 120 329 85 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
680 283 1919 249 DFN Verein zur Foerderung eines Deutsch
786 186 1775 183 JANET Jisc Services Limited, GB
8895 176 24 4 ISU Internet Services Unit ISU, SA
559 115 550 106 SWITCH Peering requests: peering at switch
1103 95 1518 84 SURFNET-NL SURFnet, The Netherlands, NL
2614 94 27 74 ROEDUNET, RO
137 82 677 77 ASGARR Consortium GARR, IT
553 73 449 73 BELWUE BelWue-Koordination, DE
1930 65 81 60 RCCN Fundacao para a Ciencia e a Tecnol
2200 64 599 59 FR-RENATER Reseau National de telecommu
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 180 208 44 Rede Nacional de Ensino e Pesquisa, BR
28391 153 10 67 Universidad Juarez Autonoma de Tabasco,
11340 104 24 47 Red Universitaria Nacional, CL
2715 58 102 38 Fundacao Carlos Chagas Filho de Amparo
1251 57 37 19 FUNDACAO DE AMPARO A PESQUISA DO ESTADO
61468 46 3 14 CEDIA, EC
4270 44 16 1 Red de Interconexion Universitaria, AR
28614 38 2 2 Fundacao Universidade Regional de Blume
19611 37 17 2 Associacao Antonio Vieira - Unisinos, B
28571 37 40 18 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 370 319 72 TENET-1, ZA
36914 246 82 3 KENET-AS, KE
2561 67 4 34 EUN, EG
327687 61 28 3 RENU, UG
8094 48 48 15 PUKNET, ZA
37182 33 8 1 TERNET, TZ
3208 32 2 1 ARN, DZ
327700 29 16 1 MoRENet, MZ
6879 24 2 9 ENSTINET-, EG
37074 13 8 2 UG-AS, GH
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 3220 4623 1404 AMAZON-02, US
14618 747 3994 555 AMAZON-AES, US
2907 598 2157 464 SINET-AS Research Organization of Infor
7497 435 182 24 CSTNET-AS-AP Computer Network Informati
2018 370 319 72 TENET-1, ZA
680 283 1919 249 DFN Verein zur Foerderung eines Deutsch
36914 246 82 3 KENET-AS, KE
668 216 702 180 DNIC-AS-00668, US
376 199 178 149 RISQ-AS, CA
5786 198 16 1 UPRENET, PR
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 435 411 CSTNET-AS-AP Computer Network Information Cente
2018 370 298 TENET-1, ZA
36914 246 243 KENET-AS, KE
5786 198 197 UPRENET, PR
14618 747 192 AMAZON-AES, US
58647 178 176 KAGAWAU-AS Kagawa University, JP
8895 176 172 ISU Internet Services Unit ISU, SA
1916 180 136 Rede Nacional de Ensino e Pesquisa, BR
2907 598 134 SINET-AS Research Organization of Information a
18558 134 130 NETBLK-RCOEK, US
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
394607 UNALLOCATED 104.249.65.0/24 23024 OCDE, US
18621 UNALLOCATED 142.156.0.0/16 26677 ORION-ASN, CA
33008 UNALLOCATED 162.248.66.0/24 11096 FLORIDANET, US
19658 UNALLOCATED 199.27.241.0/24 11096 FLORIDANET, US
394607 UNALLOCATED 216.100.93.0/24 23024 OCDE, US
Complete listing at https://bgp.nsrc.org/REN/Internet2/data-badAS
Advertised Unallocated Addresses
--------------------------------
Unassigned Network ASN Information AS Name
64.186.3.0/24 Origin: 16509 AMAZON-02, US
64.186.3.0/24 Transit: 11537 INTERNET2-RESEARCH-EDU, US
102.36.194.0/23 Origin: 2018 TENET-1, ZA
102.36.194.0/23 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
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
/13:25 /14:59 /15:174 /16:2075 /17:473 /18:476
/19:611 /20:1001 /21:1033 /22:1703 /23:1785 /24:13281
/25:88 /26:62 /27:157 /28:7 /29:56 /30:0
/31:0 /32:5
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
16509 494 3220 AMAZON-02, US
14618 247 747 AMAZON-AES, US
36914 233 246 KENET-AS, KE
8895 171 176 ISU Internet Services Unit ISU, SA
32440 79 104 LONI, US
23024 52 113 OCDE, US
1 40 122 LVLT-1, US
28614 32 38 Fundacao Universidade Regional de Blumenau, BR
37182 32 33 TERNET, TZ
46115 32 35 LUTHER, US
Complete listing at https://bgp.nsrc.org/REN/Internet2/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:2 3:92 4:2 5:17 6:4 8:2
12:1 13:59 14:89 15:92 16:29 18:94
23:50 24:3 31:7 35:14 37:1 38:9
40:1 41:132 42:10 44:5 45:48 46:10
47:1 49:7 50:8 52:835 54:249 58:2
59:20 60:4 61:3 62:12 63:38 64:151
65:13 66:71 67:63 68:18 69:44 70:27
71:16 72:17 74:82 76:46 77:11 78:3
79:10 80:17 81:28 82:6 83:6 84:13
85:46 86:5 87:2 88:1 89:13 91:53
92:2 93:4 94:4 95:2 96:7 97:1
98:13 99:65 101:6 102:16 103:343 104:116
107:1 108:32 109:12 110:2 111:16 114:23
115:1 116:8 117:61 118:32 119:21 121:28
122:11 123:8 124:39 125:4 128:86 129:49
130:142 131:66 132:50 133:157 134:100 135:3
136:215 137:106 138:13 139:18 140:55 141:5
142:55 143:32 144:40 145:2 146:134 147:65
148:204 149:16 150:130 151:14 152:148 153:14
154:30 155:78 156:71 157:45 158:43 159:164
160:32 161:36 162:65 163:89 164:22 165:61
166:1 167:22 168:170 169:14 170:132 171:1
172:10 173:22 174:2 175:31 176:12 177:9
178:1 179:11 180:14 181:1 182:1 184:4
185:76 186:3 187:19 188:15 189:3 190:18
191:36 192:1521 193:355 194:133 195:84 196:166
197:153 198:517 199:336 200:220 201:39 202:645
203:440 204:372 205:159 206:207 207:188 208:116
209:138 210:186 211:17 212:167 213:16 214:7
216:159 217:11 218:22 219:6 220:17 222:5
223:4
End of report
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