[REN-BGP-stats-all] IPv4 R&E Routing Table Report - UH (R&E) view
REN Routing Table Report
cscora at bgp.nsrc.org
Thu Jan 16 22:25:51 UTC 2025
IPv4 R&E Routing Table Report 22:25 GMT Thu 16 Jan, 2025
IPv4 BGP Table (R&E) as seen at UH.
Report Website: https://bgp.nsrc.org/REN
Detailed Analysis: https://bgp.nsrc.org/REN/UniHawaii/
Analysis Summary
----------------
BGP routing table entries examined: 24877
Prefixes after maximum aggregation (per Origin AS): 13662
Deaggregation factor: 1.82
Unique aggregates announced (without unneeded subnets): 15878
Number of IPv4 prefixes with a valid ROA: 13351
Number of IPv4 prefixes with an invalid ROA: 26
Number of IPv4 prefixes with no ROA: 11500
Total ASes present in the Internet Routing Table: 2696
Prefixes per ASN: 9.23
Origin-only ASes present in the Internet Routing Table: 2310
Origin ASes announcing only one prefix: 1026
Transit ASes present in the Internet Routing Table: 386
Transit-only ASes present in the Internet Routing Table: 85
Paths with bogon ASNs present in the IPv4 Routing Table: 0
Average AS path length visible in the Internet Routing Table: 4.3
Max AS path length visible: 20
Max AS path prepend of ASN (395156) 12
Prefixes from unregistered ASNs in the Routing Table: 1
Number of instances of unregistered ASNs: 1
Number of 32-bit ASNs allocated by the RIRs: 46067
Number of 32-bit ASNs visible in the Routing Table: 653
Prefixes from 32-bit ASNs in the Routing Table: 1792
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: 9
Number of addresses announced to Internet: 295734888
Equivalent to 17 /8s, 160 /16s and 142 /24s
Percentage of available address space announced: 8.0
Percentage of allocated address space announced: 8.0
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: 3619
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 3787
Total APNIC prefixes after maximum aggregation: 1589
APNIC Deaggregation factor: 2.38
Prefixes being announced from the APNIC address blocks: 3964
Unique aggregates announced from the APNIC address blocks: 1984
APNIC Region origin ASes present in the Internet Routing Table: 425
APNIC Prefixes per ASN: 9.33
APNIC Region origin ASes announcing only one prefix: 182
APNIC Region transit ASes present in the Internet Routing Table: 53
Average APNIC Region AS path length visible: 4.9
Max APNIC Region AS path length visible: 14
Number of APNIC region 32-bit ASNs visible in the Routing Table: 184
Number of APNIC addresses announced to Internet: 33146664
Equivalent to 1 /8s, 249 /16s and 199 /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, 131072-153913
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: 14858
Total ARIN prefixes after maximum aggregation: 8452
ARIN Deaggregation factor: 1.76
Prefixes being announced from the ARIN address blocks: 14190
Unique aggregates announced from the ARIN address blocks: 9459
ARIN Region origin ASes present in the Internet Routing Table: 1310
ARIN Prefixes per ASN: 10.83
ARIN Region origin ASes announcing only one prefix: 460
ARIN Region transit ASes present in the Internet Routing Table: 163
Average ARIN Region AS path length visible: 4.0
Max ARIN Region AS path length visible: 16
Number of ARIN region 32-bit ASNs visible in the Routing Table: 215
Number of ARIN addresses announced to Internet: 174645616
Equivalent to 10 /8s, 104 /16s and 225 /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, 393216-402332
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, 45/8, 47/8, 48/8, 50/8, 52/8,
54/8, 55/8, 56/8, 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: 3628
Total RIPE prefixes after maximum aggregation: 2904
RIPE Deaggregation factor: 1.25
Prefixes being announced from the RIPE address blocks: 4096
Unique aggregates announced from the RIPE address blocks: 3479
RIPE Region origin ASes present in the Internet Routing Table: 669
RIPE Prefixes per ASN: 6.12
RIPE Region origin ASes announcing only one prefix: 301
RIPE Region transit ASes present in the Internet Routing Table: 112
Average RIPE Region AS path length visible: 4.7
Max RIPE Region AS path length visible: 14
Number of RIPE region 32-bit ASNs visible in the Routing Table: 160
Number of RIPE addresses announced to Internet: 80715648
Equivalent to 4 /8s, 207 /16s and 159 /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
196608-216475
RIPE Address Blocks 2/8, 5/8, 25/8, 31/8, 37/8, 46/8, 51/8,
53/8, 57/8, 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: 1457
Total LACNIC prefixes after maximum aggregation: 539
LACNIC Deaggregation factor: 2.70
Prefixes being announced from the LACNIC address blocks: 1466
Unique aggregates announced from the LACNIC address blocks: 718
LACNIC Region origin ASes present in the Internet Routing Table: 156
LACNIC Prefixes per ASN: 9.40
LACNIC Region origin ASes announcing only one prefix: 54
LACNIC Region transit ASes present in the Internet Routing Table: 23
Average LACNIC Region AS path length visible: 5.1
Max LACNIC Region AS path length visible: 14
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 64
Number of LACNIC addresses announced to Internet: 4747344
Equivalent to 0 /8s, 72 /16s and 112 /24s
LACNIC AS Blocks 26592-26623, 27648-28671, 52224-53247,
61440-61951, 64099-64197, 262144-274844 + 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: 1146
Total AfriNIC prefixes after maximum aggregation: 177
AfriNIC Deaggregation factor: 6.47
Prefixes being announced from the AfriNIC address blocks: 1152
Unique aggregates announced from the AfriNIC address blocks: 229
AfriNIC Region origin ASes present in the Internet Routing Table: 50
AfriNIC Prefixes per ASN: 23.04
AfriNIC Region origin ASes announcing only one prefix: 29
AfriNIC Region transit ASes present in the Internet Routing Table: 10
Average AfriNIC Region AS path length visible: 3.9
Max AfriNIC Region AS path length visible: 20
Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 30
Number of AfriNIC addresses announced to Internet: 2475520
Equivalent to 0 /8s, 37 /16s and 198 /24s
AfriNIC AS Blocks 36864-37887, 327680-329727 & ERX transfers
AfriNIC Address Blocks 41/8, 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
7497 449 180 24 CSTNET-AS-AP Computer Network Information
1237 195 74 146 KREONET-AS-KR KISTI, KR
7575 189 298 121 AARNET-AS-AP Australian Academic and Rese
55824 146 19 20 NKN-CORE-NW NKN Core Network, IN
10079 145 16 1 UNIWESTSYD-AS-AP University of Western Sy
4538 140 4192 71 ERX-CERNET-BKB China Education and Resear
4762 75 4 1 MAHIDOL-BORDER-AS Mahidol University, Tha
24313 70 16 1 NSW-DET-AS NSW Department of Education, A
4621 69 37 10 UNINET-AS-AP UNINET-, TH
2697 59 4 34 ERX-ERNET-AS Education and Research Netwo
Complete listing at https://bgp.nsrc.org/REN/UniHawaii/data-ASnet-APNIC
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
16509 4065 4897 1955 AMAZON-02, US
14618 1004 4444 764 AMAZON-AES, US
8075 711 16017 599 MICROSOFT-CORP-MSN-AS-BLOCK, US
2152 514 507 99 CENIC-2152, US
2920 226 44 49 LACOE, US
668 205 646 174 DNIC-AS-00668, US
376 201 162 150 RISQ-AS, CA
5786 170 16 1 UPRENET, PR
18558 140 18 5 NETBLK-RCOEK, US
81 129 519 34 NCREN, US
Complete listing at https://bgp.nsrc.org/REN/UniHawaii/data-ASnet-ARIN
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
680 284 1899 249 DFN Verein zur Foerderung eines Deutschen
786 185 1767 182 JANET Jisc Services Limited, GB
8895 130 24 5 ISU Internet Services Unit ISU, SA
559 114 533 104 SWITCH Peering requests: peering at switch.c
1103 96 1743 83 SURFNET-NL SURFnet, The Netherlands, NL
2614 93 26 73 ROEDUNET, RO
8987 86 243 62 AMAZON EXPANSION, IE
137 82 677 77 ASGARR Consortium GARR, IT
1930 79 88 74 RCCN Fundacao para a Ciencia e a Tecnolog
553 78 462 78 BELWUE BelWue-Koordination, DE
Complete listing at https://bgp.nsrc.org/REN/UniHawaii/data-ASnet-RIPE
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
1916 219 178 44 Rede Nacional de Ensino e Pesquisa, BR
28391 157 10 69 Universidad Juarez Autonoma de Tabasco, M
11340 109 25 52 Red Universitaria Nacional, CL
271640 67 8 1 UNIVERSIDADE FEDERAL DE VICOSA, BR
61468 52 5 17 CEDIA, EC
2715 49 99 35 Fundacao Carlos Chagas Filho de Amparo a
19611 48 17 2 Associacao Antonio Vieira - Unisinos, BR
4270 46 16 1 Red de Interconexion Universitaria, AR
3596 40 8 4 Universidad Autonoma Metropolitana, MX
28614 38 2 2 Fundacao Universidade Regional de Blumena
Complete listing at https://bgp.nsrc.org/REN/UniHawaii/data-ASnet-LACNIC
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
36914 552 82 3 KENET-AS, KE
2018 379 319 71 TENET-1, ZA
8094 47 48 18 PUKNET, ZA
37215 32 8 1 MAREN, MW
6879 24 2 9 ENSTINET-, EG
37661 12 8 4 NRaE1-AS, NG
37501 11 49 6 UOFS, ZA
327700 11 16 1 MoRENet, MZ
36982 8 33 8 UCT, ZA
37182 7 0 7 TERNET, TZ
Complete listing at https://bgp.nsrc.org/REN/UniHawaii/data-ASnet-AFRINIC
Global Per AS prefix count summary
----------------------------------
ASN No of nets /20 equiv MaxAgg Description
16509 4065 4897 1955 AMAZON-02, US
14618 1004 4444 764 AMAZON-AES, US
8075 711 16017 599 MICROSOFT-CORP-MSN-AS-BLOCK, US
36914 552 82 3 KENET-AS, KE
2152 514 507 99 CENIC-2152, US
7497 449 180 24 CSTNET-AS-AP Computer Network Information
2018 379 319 71 TENET-1, ZA
680 284 1899 249 DFN Verein zur Foerderung eines Deutschen
2920 226 44 49 LACOE, US
1916 219 178 44 Rede Nacional de Ensino e Pesquisa, BR
Complete listing at https://bgp.nsrc.org/REN/UniHawaii/data-ASnet
Global Per AS Maximum Aggregation summary
-----------------------------------------
ASN No of nets Net Savings Description
36914 552 549 KENET-AS, KE
7497 449 425 CSTNET-AS-AP Computer Network Information Cente
2152 514 415 CENIC-2152, US
2018 379 308 TENET-1, ZA
14618 1004 240 AMAZON-AES, US
2920 226 177 LACOE, US
1916 219 175 Rede Nacional de Ensino e Pesquisa, BR
5786 170 169 UPRENET, PR
10079 145 144 UNIWESTSYD-AS-AP University of Western Sydney,
18558 140 135 NETBLK-RCOEK, US
Complete listing at https://bgp.nsrc.org/REN/UniHawaii/data-CIDRnet
List of Unregistered Origin ASNs (Global)
-----------------------------------------
Bad AS Designation Net Originated Transit AS Transit AS Name
26971 UNALLOCATED 129.111.0.0/16 276 OTS-AS-276, US
Complete listing at https://bgp.nsrc.org/REN/UniHawaii/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
103.165.160.0/24 Origin: 16509 AMAZON-02, US
103.165.160.0/24 Transit: 11537 INTERNET2-RESEARCH-EDU, US
164.160.192.0/21 Origin: 37661 NRaE1-AS, NG
164.160.192.0/21 Transit: 37288 WACREN, SN
192.225.212.0/24 Origin: 14618 AMAZON-AES, US
192.225.212.0/24 Transit: 16509 AMAZON-02, US
192.225.223.0/24 Origin: 14618 AMAZON-AES, US
192.225.223.0/24 Transit: 16509 AMAZON-02, US
Complete listing at https://bgp.nsrc.org/REN/UniHawaii/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 /10:3 /11:9 /12:32
/13:41 /14:84 /15:212 /16:2075 /17:465 /18:492
/19:634 /20:978 /21:1108 /22:1706 /23:1848 /24:14895
/25:40 /26:60 /27:96 /28:25 /29:63 /30:7
/31:0 /32:3
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
16509 667 4065 AMAZON-02, US
36914 528 552 KENET-AS, KE
14618 318 1004 AMAZON-AES, US
8075 128 711 MICROSOFT-CORP-MSN-AS-BLOCK, US
8895 125 130 ISU Internet Services Unit ISU, SA
1916 60 219 Rede Nacional de Ensino e Pesquisa, BR
2152 59 514 CENIC-2152, US
1 42 128 LVLT-1, US
23024 37 97 OCDE, US
3267 34 78 NIKS, RU
Complete listing at https://bgp.nsrc.org/REN/UniHawaii/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:3 2:1 3:177 4:2 5:21 6:4
8:2 12:2 13:87 14:93 15:103 16:129
18:155 23:51 24:1 31:4 35:52 37:8
38:11 40:5 41:226 42:11 44:4 45:81
46:11 47:1 49:11 50:11 52:834 54:178
58:1 59:19 60:6 61:3 62:15 63:39
64:154 65:26 66:101 67:70 68:28 69:66
70:21 71:15 72:19 74:82 75:1 76:47
77:12 78:3 79:10 80:12 81:26 82:7
83:7 84:8 85:49 86:6 87:2 88:1
89:19 91:58 92:6 93:45 94:6 95:3
96:7 97:1 98:14 99:68 102:16 103:276
104:134 107:8 108:38 109:7 111:18 113:5
114:21 115:1 116:14 117:66 118:33 119:23
121:28 122:11 124:42 125:5 128:87 129:42
130:168 131:80 132:65 134:109 135:6 136:197
137:250 138:80 139:29 140:47 141:14 142:64
143:34 144:43 145:8 146:140 147:79 148:209
149:20 150:48 151:38 152:142 153:78 154:42
155:113 156:133 157:39 158:42 159:169 160:12
161:51 162:77 163:68 164:29 165:79 166:6
167:39 168:166 169:15 170:200 171:1 172:19
173:38 174:2 175:5 176:5 177:6 178:3
179:14 180:16 181:1 182:6 184:9 185:114
186:3 187:22 188:17 189:3 190:34 191:13
192:1567 193:297 194:130 195:85 196:145 197:335
198:629 199:371 200:271 201:37 202:468 203:465
204:440 205:213 206:249 207:349 208:141 209:196
210:200 211:3 212:176 213:24 214:8 216:226
217:16 218:23 219:2 220:16 222:2 223:15
End of report
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