[REN-BGP-stats-all] Global R&E Routing Table Report - ESnet R&E view
REN Routing Table Report
cscora at frr.nsrc.org
Sun Oct 10 22:20:27 UTC 2021
Global R&E Routing Table Report 22:20 GMT Sun 10 Oct, 2021
Report Website: https://bgp.nsrc.org/REN
Detailed Analysis: https://bgp.nsrc.org/REN/ESnet/
Analysis Summary
----------------
BGP routing table entries examined: 19702
Prefixes after maximum aggregation (per Origin AS): 9019
Deaggregation factor: 2.18
Unique aggregates announced (without unneeded subnets): 8010
Total ASes present in the Internet Routing Table: 2957
Prefixes per ASN: 6.66
Origin-only ASes present in the Internet Routing Table: 2540
Origin ASes announcing only one prefix: 1173
Transit ASes present in the Internet Routing Table: 417
Transit-only ASes present in the Internet Routing Table: 72
Average AS path length visible in the Internet Routing Table: 3.8
Max AS path length visible: 16
Max AS path prepend of ASN (397422) 11
Prefixes from unregistered ASNs in the Routing Table: 37
Number of instances of unregistered ASNs: 37
Number of 32-bit ASNs allocated by the RIRs: 37460
Number of 32-bit ASNs visible in the Routing Table: 635
Prefixes from 32-bit ASNs in the Routing Table: 1848
Number of bogon 32-bit ASNs visible in the Routing Table: 0
Special use prefixes present in the Routing Table: 919
Prefixes being announced from unallocated address space: 10
Number of addresses announced to Internet: 155537664
Equivalent to 9 /8s, 69 /16s and 81 /24s
Percentage of available address space announced: 4.2
Percentage of allocated address space announced: 4.2
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: 7859
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 4584
Total APNIC prefixes after maximum aggregation: 1399
APNIC Deaggregation factor: 3.28
Prefixes being announced from the APNIC address blocks: 1780
Unique aggregates announced from the APNIC address blocks: 730
APNIC Region origin ASes present in the Internet Routing Table: 572
APNIC Prefixes per ASN: 3.11
APNIC Region origin ASes announcing only one prefix: 246
APNIC Region transit ASes present in the Internet Routing Table: 62
Average APNIC Region AS path length visible: 4.1
Max APNIC Region AS path length visible: 13
Number of APNIC region 32-bit ASNs visible in the Routing Table: 218
Number of APNIC addresses announced to Internet: 24134400
Equivalent to 1 /8s, 112 /16s and 67 /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: 9752
Total ARIN prefixes after maximum aggregation: 4562
ARIN Deaggregation factor: 2.14
Prefixes being announced from the ARIN address blocks: 10781
Unique aggregates announced from the ARIN address blocks: 3577
ARIN Region origin ASes present in the Internet Routing Table: 1470
ARIN Prefixes per ASN: 7.33
ARIN Region origin ASes announcing only one prefix: 546
ARIN Region transit ASes present in the Internet Routing Table: 206
Average ARIN Region AS path length visible: 3.7
Max ARIN Region AS path length visible: 16
Number of ARIN region 32-bit ASNs visible in the Routing Table: 210
Number of ARIN addresses announced to Internet: 93467136
Equivalent to 5 /8s, 146 /16s and 50 /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: 3095
Total RIPE prefixes after maximum aggregation: 2518
RIPE Deaggregation factor: 1.23
Prefixes being announced from the RIPE address blocks: 6058
Unique aggregates announced from the RIPE address blocks: 3545
RIPE Region origin ASes present in the Internet Routing Table: 639
RIPE Prefixes per ASN: 9.48
RIPE Region origin ASes announcing only one prefix: 307
RIPE Region transit ASes present in the Internet Routing Table: 99
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: 126
Number of RIPE addresses announced to Internet: 29305600
Equivalent to 1 /8s, 191 /16s and 43 /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: 1464
Total LACNIC prefixes after maximum aggregation: 400
LACNIC Deaggregation factor: 3.66
Prefixes being announced from the LACNIC address blocks: 2
Unique aggregates announced from the LACNIC address blocks: 2
LACNIC Region origin ASes present in the Internet Routing Table: 176
LACNIC Prefixes per ASN: 0.01
LACNIC Region origin ASes announcing only one prefix: 68
LACNIC Region transit ASes present in the Internet Routing Table: 25
Average LACNIC Region AS path length visible: 4.5
Max LACNIC Region AS path length visible: 11
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 74
Number of LACNIC addresses announced to Internet: 131072
Equivalent to 0 /8s, 2 /16s and 0 /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: 770
Total AfriNIC prefixes after maximum aggregation: 129
AfriNIC Deaggregation factor: 5.97
Prefixes being announced from the AfriNIC address blocks: 152
Unique aggregates announced from the AfriNIC address blocks: 144
AfriNIC Region origin ASes present in the Internet Routing Table: 23
AfriNIC Prefixes per ASN: 6.61
AfriNIC Region origin ASes announcing only one prefix: 6
AfriNIC Region transit ASes present in the Internet Routing Table: 5
Average AfriNIC Region AS path length visible: 3.4
Max AfriNIC Region AS path length visible: 7
Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 7
Number of AfriNIC addresses announced to Internet: 8249856
Equivalent to 0 /8s, 125 /16s and 226 /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 609 2000 196 SINET-AS Research Organization of Infor
7497 429 116 8 CSTNET-AS-AP Computer Network Informati
1237 185 33 3 KREONET-AS-KR KISTI, KR
7575 175 315 51 AARNET-AS-AP Australian Academic and Re
58647 164 16 1 KAGAWAU-AS Kagawa University, JP
55824 113 17 7 NKN-CORE-NW NKN Core Network, IN
4538 107 1298 38 ERX-CERNET-BKB China Education and Rese
4621 81 3 6 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/ESnet/data-ASnet-APNIC
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
7896 250 50 5 NU-AS, US
376 234 163 32 RISQ-AS, CA
5786 195 16 1 UPRENET, PR
668 184 552 128 DNIC-AS-00668, US
2152 158 404 49 CSUNET-NW, US
18558 136 18 4 NETBLK-RCOEK, US
270 114 329 88 AS270, US
23024 114 7 17 OCDE, US
2920 109 16 1 LACOE, US
11404 86 97 39 AS-WAVE-1, US
Complete listing at https://bgp.nsrc.org/REN/ESnet/data-ASnet-ARIN
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
680 275 1947 238 DFN Verein zur Foerderung eines Deutsch
786 186 1732 177 JANET Jisc Services Limited, GB
559 115 550 106 SWITCH Peering requests: peering at switch
1103 97 1264 84 SURFNET-NL SURFnet, The Netherlands, NL
137 82 653 75 ASGARR Consortium GARR, IT
553 72 449 72 BELWUE BelWue-Koordination, DE
2200 67 647 61 FR-RENATER Reseau National de telecommu
2614 62 28 37 ROEDUNET, RO
1930 57 81 52 RCCN Fundacao para a Ciencia e a Tecnol
1653 52 127 38 SUNET SUNET Swedish University Network,
Complete listing at https://bgp.nsrc.org/REN/ESnet/data-ASnet-RIPE
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
1916 174 81 7 Associacao Rede Nacional de Ensino e Pe
28391 152 10 66 Universidad Juarez Autonoma de Tabasco,
11340 94 22 46 Red Universitaria Nacional, CL
1251 65 12 2 FUNDACAO DE AMPARO A PESQUISA DO ESTADO
2715 60 69 34 Fundacao Carlos Chagas Filho de Amparo
19611 44 16 1 Associacao Antonio Vieira - Unisinos, B
4270 42 16 1 Red de Interconexion Universitaria, AR
61468 41 2 11 CEDIA, EC
28614 38 1 1 Fundacao Universidade Regional de Blume
28571 37 16 1 UNIVERSIDADE DE SAO PAULO, BR
Complete listing at https://bgp.nsrc.org/REN/ESnet/data-ASnet-LACNIC
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
2018 342 319 72 TENET-1, ZA
327687 135 28 3 RENU, UG
36914 92 82 3 KENET-AS, KE
8094 50 48 4 PUKNET, ZA
327700 39 16 1 MoRENet, MZ
37215 32 8 1 MAREN, MW
6879 24 2 9 ENSTINET-, EG
37501 11 49 6 UOFS, ZA
36982 8 33 8 UCT, ZA
2561 7 0 5 EUN, EG
Complete listing at https://bgp.nsrc.org/REN/ESnet/data-ASnet-AFRINIC
Global Per AS prefix count summary
----------------------------------
ASN No of nets /20 equiv MaxAgg Description
2907 609 2000 196 SINET-AS Research Organization of Infor
7497 429 116 8 CSTNET-AS-AP Computer Network Informati
2018 342 319 72 TENET-1, ZA
680 275 1947 238 DFN Verein zur Foerderung eines Deutsch
7896 250 50 5 NU-AS, US
376 234 163 32 RISQ-AS, CA
5786 195 16 1 UPRENET, PR
786 186 1732 177 JANET Jisc Services Limited, GB
1237 185 33 3 KREONET-AS-KR KISTI, KR
668 184 552 128 DNIC-AS-00668, US
Complete listing at https://bgp.nsrc.org/REN/ESnet/data-ASnet
Global Per AS Maximum Aggregation summary
-----------------------------------------
ASN No of nets Net Savings Description
7497 429 421 CSTNET-AS-AP Computer Network Information Cente
2018 342 270 TENET-1, ZA
7896 250 245 NU-AS, US
376 234 202 RISQ-AS, CA
5786 195 194 UPRENET, PR
1237 185 182 KREONET-AS-KR KISTI, KR
1916 174 167 Associacao Rede Nacional de Ensino e Pesquisa,
58647 164 163 KAGAWAU-AS Kagawa University, JP
18558 136 132 NETBLK-RCOEK, US
327687 135 132 RENU, UG
Complete listing at https://bgp.nsrc.org/REN/ESnet/data-CIDRnet
List of Unregistered Origin ASNs (Global)
-----------------------------------------
Bad AS Designation Net Originated Transit AS Transit AS Name
19176 UNALLOCATED 3.81.146.0/24 32278 GETWIRELESS, US
19176 UNALLOCATED 3.108.136.0/23 32278 GETWIRELESS, US
19176 UNALLOCATED 3.108.136.0/24 32278 GETWIRELESS, US
19176 UNALLOCATED 3.108.137.0/24 32278 GETWIRELESS, US
19176 UNALLOCATED 3.108.138.0/24 32278 GETWIRELESS, US
19176 UNALLOCATED 3.127.160.0/22 32278 GETWIRELESS, US
19176 UNALLOCATED 3.127.161.0/24 32278 GETWIRELESS, US
19176 UNALLOCATED 3.127.162.0/24 32278 GETWIRELESS, US
19176 UNALLOCATED 3.127.163.0/24 32278 GETWIRELESS, US
19176 UNALLOCATED 3.127.168.0/21 32278 GETWIRELESS, US
Complete listing at https://bgp.nsrc.org/REN/ESnet/data-badAS
Prefixes from private and non-routed address space (Global)
-----------------------------------------------------------
Prefix Origin AS Description
0.135.25.0/24 7896 NU-AS, US
0.28.128.0/18 13796 UCONN-ARIN, US
0.32.75.0/24 395333 LACKAWANNA-COLLEGE, US
0.58.142.0/23 26421 PONDEROSA-INTERNET, US
0.115.192.0/20 54048 CVIN, US
0.115.201.0/24 54048 CVIN, US
0.115.204.0/24 54048 CVIN, US
0.115.207.0/24 54048 CVIN, US
0.203.3.0/24 32285 HFCC, US
0.225.74.0/24 394767 GROUPONE-SC1, US
Complete listing at https://bgp.nsrc.org/REN/ESnet/data-dsua
Advertised Unallocated Addresses
--------------------------------
Unassigned Network ASN Information AS Name
23.136.65.0/24 Origin: 23767 A-STAR-AS-AP A-STAR, SG
23.136.65.0/24 Transit: 23855 SINGAREN-GIX-AS-AP Singapore Advanced Re
23.136.66.0/24 Origin: 23767 A-STAR-AS-AP A-STAR, SG
23.136.66.0/24 Transit: 23855 SINGAREN-GIX-AS-AP Singapore Advanced Re
23.136.67.0/24 Origin: 23767 A-STAR-AS-AP A-STAR, SG
23.136.67.0/24 Transit: 23855 SINGAREN-GIX-AS-AP Singapore Advanced Re
23.136.68.0/24 Origin: 23767 A-STAR-AS-AP A-STAR, SG
23.136.68.0/24 Transit: 23855 SINGAREN-GIX-AS-AP Singapore Advanced Re
23.136.69.0/24 Origin: 23767 A-STAR-AS-AP A-STAR, SG
23.136.69.0/24 Transit: 23855 SINGAREN-GIX-AS-AP Singapore Advanced Re
Complete listing at https://bgp.nsrc.org/REN/ESnet/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 /9:0 /10:0 /11:0 /12:0
/13:0 /14:37 /15:121 /16:2055 /17:393 /18:438
/19:605 /20:938 /21:988 /22:1598 /23:1704 /24:10825
/25:0 /26:0 /27:0 /28:0 /29:0 /30:0
/31:0 /32:0
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
2907 330 609 SINET-AS Research Organization of Information a
2018 248 342 TENET-1, ZA
7497 244 429 CSTNET-AS-AP Computer Network Information Cente
1916 163 174 Associacao Rede Nacional de Ensino e Pesquisa,
680 138 275 DFN Verein zur Foerderung eines Deutschen Forsc
327687 130 135 RENU, UG
1237 104 185 KREONET-AS-KR KISTI, KR
11340 92 94 Red Universitaria Nacional, CL
270 89 114 AS270, US
668 76 184 DNIC-AS-00668, US
Complete listing at https://bgp.nsrc.org/REN/ESnet/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:248 2:713 3:845 4:753 5:316 6:349
7:280 8:205 9:246 10:182 11:34 12:43
13:4 14:30 16:101 17:75 18:57 19:27
20:16 21:26 22:13 23:10 24:40 25:6
28:81 29:173 30:97 31:90 32:61 33:138
34:98 36:209 37:142 38:8 39:5 40:46
41:3 42:43 43:35 44:54 46:217 47:63
48:161 49:13 50:41 51:9 52:82 53:11
54:24 55:53 56:66 57:25 58:45 59:117
60:25 61:55 62:41 63:61 64:24 65:54
66:2 67:16 68:131 69:10 70:67 71:1
72:2 73:15 74:8 75:31 77:10 78:1
79:12 80:21 81:12 82:6 84:4 85:37
86:3 87:18 88:13 89:3 90:48 91:36
92:1491 93:200 94:126 95:57 96:180 97:5
98:565 99:321
End of report
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