[REN-BGP-stats-all] IPv4 R&E Routing Table Report - UH (R&E) view
REN Routing Table Report
cscora at bgp.nsrc.org
Fri Jan 17 22:25:53 UTC 2025
IPv4 R&E Routing Table Report 22:25 GMT Fri 17 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: 24873
Prefixes after maximum aggregation (per Origin AS): 13662
Deaggregation factor: 1.82
Unique aggregates announced (without unneeded subnets): 15840
Number of IPv4 prefixes with a valid ROA: 13392
Number of IPv4 prefixes with an invalid ROA: 26
Number of IPv4 prefixes with no ROA: 11455
Total ASes present in the Internet Routing Table: 2700
Prefixes per ASN: 9.21
Origin-only ASes present in the Internet Routing Table: 2311
Origin ASes announcing only one prefix: 1027
Transit ASes present in the Internet Routing Table: 389
Transit-only ASes present in the Internet Routing Table: 87
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: 46084
Number of 32-bit ASNs visible in the Routing Table: 651
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: 296096104
Equivalent to 17 /8s, 166 /16s and 17 /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: 3609
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 3752
Total APNIC prefixes after maximum aggregation: 1579
APNIC Deaggregation factor: 2.38
Prefixes being announced from the APNIC address blocks: 3929
Unique aggregates announced from the APNIC address blocks: 1936
APNIC Region origin ASes present in the Internet Routing Table: 427
APNIC Prefixes per ASN: 9.20
APNIC Region origin ASes announcing only one prefix: 183
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: 185
Number of APNIC addresses announced to Internet: 33228328
Equivalent to 1 /8s, 251 /16s and 6 /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: 14897
Total ARIN prefixes after maximum aggregation: 8460
ARIN Deaggregation factor: 1.76
Prefixes being announced from the ARIN address blocks: 14230
Unique aggregates announced from the ARIN address blocks: 9471
ARIN Region origin ASes present in the Internet Routing Table: 1311
ARIN Prefixes per ASN: 10.85
ARIN Region origin ASes announcing only one prefix: 461
ARIN Region transit ASes present in the Internet Routing Table: 165
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: 214
Number of ARIN addresses announced to Internet: 174845296
Equivalent to 10 /8s, 107 /16s and 237 /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: 2903
RIPE Deaggregation factor: 1.25
Prefixes being announced from the RIPE address blocks: 4094
Unique aggregates announced from the RIPE address blocks: 3478
RIPE Region origin ASes present in the Internet Routing Table: 667
RIPE Prefixes per ASN: 6.14
RIPE Region origin ASes announcing only one prefix: 299
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: 158
Number of RIPE addresses announced to Internet: 80714624
Equivalent to 4 /8s, 207 /16s and 155 /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: 541
LACNIC Deaggregation factor: 2.69
Prefixes being announced from the LACNIC address blocks: 1467
Unique aggregates announced from the LACNIC address blocks: 716
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: 4762704
Equivalent to 0 /8s, 72 /16s and 172 /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: 1138
Total AfriNIC prefixes after maximum aggregation: 178
AfriNIC Deaggregation factor: 6.39
Prefixes being announced from the AfriNIC address blocks: 1144
Unique aggregates announced from the AfriNIC address blocks: 230
AfriNIC Region origin ASes present in the Internet Routing Table: 51
AfriNIC Prefixes per ASN: 22.43
AfriNIC Region origin ASes announcing only one prefix: 30
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: 2541056
Equivalent to 0 /8s, 38 /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 193 74 146 KREONET-AS-KR KISTI, KR
7575 188 298 121 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 4072 4929 1960 AMAZON-02, US
14618 1005 4444 765 AMAZON-AES, US
8075 711 16017 599 MICROSOFT-CORP-MSN-AS-BLOCK, US
2152 512 507 99 CENIC-2152, US
2920 226 44 49 LACOE, US
668 206 646 175 DNIC-AS-00668, US
376 201 162 150 RISQ-AS, CA
5786 198 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 543 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 4072 4929 1960 AMAZON-02, US
14618 1005 4444 765 AMAZON-AES, US
8075 711 16017 599 MICROSOFT-CORP-MSN-AS-BLOCK, US
36914 543 82 3 KENET-AS, KE
2152 512 507 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 543 540 KENET-AS, KE
7497 449 425 CSTNET-AS-AP Computer Network Information Cente
2152 512 413 CENIC-2152, US
2018 379 308 TENET-1, ZA
14618 1005 240 AMAZON-AES, US
5786 198 197 UPRENET, PR
2920 226 177 LACOE, US
1916 219 175 Rede Nacional de Ensino e Pesquisa, BR
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 /15:213 /16:2078 /17:465 /18:493
/19:637 /20:979 /21:1109 /22:1704 /23:1850 /24:14881
/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 4072 AMAZON-02, US
36914 519 543 KENET-AS, KE
14618 318 1005 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 59 512 CENIC-2152, US
1 42 128 LVLT-1, US
23024 36 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
18:158 23:51 24:1 31:4 35:52 37:8
38:11 40:5 41:224 42:11 44:4 45:85
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 74:85 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
89:18 91:58 92:6 93:45 94:6 95:3
96:7 97:1 98:14 99:68 102:16 103:281
104:136 107:8 108:38 109:7 111:18 113:5
114:24 115:1 116:14 117:10 118:33 119:23
121:28 122:11 124:42 125:5 128:87 129:41
130:170 131:81 132:65 134:109 135:6 136:225
137:249 138:80 139:29 140:47 141:14 142:64
143:35 144:43 145:8 146:140 147:79 148:209
149:20 150:48 151:38 152:142 153:78 154:42
155:113 156:133 157:39 158:42 159:170 160:12
161:51 162:77 163:68 164:29 165:79 166:6
167:39 168:173 169:15 170:200 171:1 172:19
173:38 174:2 175:5 176:5 177:6 178:3
179:10 180:16 181:1 182:6 184:10 185:114
186:3 187:22 188:17 189:3 190:34 191:13
192:1567 193:297 194:130 195:84 196:145 197:328
198:629 199:371 200:271 201:37 202:467 203:463
204:440 205:213 206:249 207:346 208:141 209:195
210:204 211:3 212:176 213:24 214:9 216:226
217:16 218:23 219:2 220:16 222:2 223:15
End of report
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