[REN-BGP-stats-all] IPv4 R&E Routing Table Report - UH (R&E) view
REN Routing Table Report
cscora at bgp.nsrc.org
Wed Feb 26 22:25:51 UTC 2025
IPv4 R&E Routing Table Report 22:25 GMT Wed 26 Feb, 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: 24732
Prefixes after maximum aggregation (per Origin AS): 13704
Deaggregation factor: 1.80
Unique aggregates announced (without unneeded subnets): 16055
Number of IPv4 prefixes with a valid ROA: 13659
Number of IPv4 prefixes with an invalid ROA: 3
Number of IPv4 prefixes with no ROA: 11070
Total ASes present in the Internet Routing Table: 2737
Prefixes per ASN: 9.04
Origin-only ASes present in the Internet Routing Table: 2363
Origin ASes announcing only one prefix: 1044
Transit ASes present in the Internet Routing Table: 374
Transit-only ASes present in the Internet Routing Table: 74
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: 19
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: 46200
Number of 32-bit ASNs visible in the Routing Table: 694
Prefixes from 32-bit ASNs in the Routing Table: 1915
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: 296495976
Equivalent to 17 /8s, 172 /16s and 43 /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: 3566
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 3922
Total APNIC prefixes after maximum aggregation: 1644
APNIC Deaggregation factor: 2.39
Prefixes being announced from the APNIC address blocks: 4107
Unique aggregates announced from the APNIC address blocks: 2069
APNIC Region origin ASes present in the Internet Routing Table: 465
APNIC Prefixes per ASN: 8.83
APNIC Region origin ASes announcing only one prefix: 195
APNIC Region transit ASes present in the Internet Routing Table: 52
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: 219
Number of APNIC addresses announced to Internet: 33280808
Equivalent to 1 /8s, 251 /16s and 211 /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, 131072-155961
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: 14445
Total ARIN prefixes after maximum aggregation: 8431
ARIN Deaggregation factor: 1.71
Prefixes being announced from the ARIN address blocks: 13764
Unique aggregates announced from the ARIN address blocks: 9514
ARIN Region origin ASes present in the Internet Routing Table: 1324
ARIN Prefixes per ASN: 10.40
ARIN Region origin ASes announcing only one prefix: 466
ARIN Region transit ASes present in the Internet Routing Table: 164
Average ARIN Region AS path length visible: 3.9
Max ARIN Region AS path length visible: 16
Number of ARIN region 32-bit ASNs visible in the Routing Table: 226
Number of ARIN addresses announced to Internet: 175567856
Equivalent to 10 /8s, 118 /16s and 243 /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: 3657
Total RIPE prefixes after maximum aggregation: 2911
RIPE Deaggregation factor: 1.26
Prefixes being announced from the RIPE address blocks: 4129
Unique aggregates announced from the RIPE address blocks: 3515
RIPE Region origin ASes present in the Internet Routing Table: 662
RIPE Prefixes per ASN: 6.24
RIPE Region origin ASes announcing only one prefix: 296
RIPE Region transit ASes present in the Internet Routing Table: 104
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: 153
Number of RIPE addresses announced to Internet: 80307968
Equivalent to 4 /8s, 201 /16s and 103 /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: 1556
Total LACNIC prefixes after maximum aggregation: 542
LACNIC Deaggregation factor: 2.87
Prefixes being announced from the LACNIC address blocks: 1566
Unique aggregates announced from the LACNIC address blocks: 717
LACNIC Region origin ASes present in the Internet Routing Table: 158
LACNIC Prefixes per ASN: 9.91
LACNIC Region origin ASes announcing only one prefix: 56
LACNIC Region transit ASes present in the Internet Routing Table: 22
Average LACNIC Region AS path length visible: 5.0
Max LACNIC Region AS path length visible: 14
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 65
Number of LACNIC addresses announced to Internet: 4761424
Equivalent to 0 /8s, 72 /16s and 167 /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: 1151
Total AfriNIC prefixes after maximum aggregation: 175
AfriNIC Deaggregation factor: 6.58
Prefixes being announced from the AfriNIC address blocks: 1157
Unique aggregates announced from the AfriNIC address blocks: 231
AfriNIC Region origin ASes present in the Internet Routing Table: 53
AfriNIC Prefixes per ASN: 21.83
AfriNIC Region origin ASes announcing only one prefix: 31
AfriNIC Region transit ASes present in the Internet Routing Table: 10
Average AfriNIC Region AS path length visible: 4.6
Max AfriNIC Region AS path length visible: 19
Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 31
Number of AfriNIC addresses announced to Internet: 2573824
Equivalent to 0 /8s, 39 /16s and 70 /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 451 180 24 CSTNET-AS-AP Computer Network Information
1237 195 74 146 KREONET-AS-KR KISTI, KR
7575 191 298 123 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
1659 61 1466 35 ERX-TANET-ASN1 Taiwan Academic Network TA
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 4071 4980 1965 AMAZON-02, US
14618 1019 4445 778 AMAZON-AES, US
8075 718 16017 606 MICROSOFT-CORP-MSN-AS-BLOCK, US
668 212 648 179 DNIC-AS-00668, US
376 202 162 151 RISQ-AS, CA
5786 198 16 1 UPRENET, PR
2920 173 34 7 LACOE, US
2152 150 507 98 CENIC-2152, US
18558 139 18 4 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
786 194 1751 186 JANET Jisc Services Limited, GB
559 114 533 104 SWITCH Peering requests: peering at switch.c
8895 110 24 5 ISU Internet Services Unit ISU, SA
1103 98 1743 84 SURFNET-NL SURFnet, The Netherlands, NL
2614 94 26 73 ROEDUNET, RO
8987 87 243 63 AMAZON EXPANSION, IE
137 82 677 77 ASGARR Consortium GARR, IT
1930 79 88 74 RCCN Fundacao para a Ciencia e a Tecnolog
3267 79 29 69 NIKS, RU
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 310 178 43 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
4270 53 16 1 Red de Interconexion Universitaria, AR
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
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 520 82 3 KENET-AS, KE
2018 374 319 71 TENET-1, ZA
8094 47 48 18 PUKNET, ZA
37182 36 8 1 TERNET, TZ
37215 34 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
327947 9 4 1 KNUST-, GH
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 4071 4980 1965 AMAZON-02, US
14618 1019 4445 778 AMAZON-AES, US
8075 718 16017 606 MICROSOFT-CORP-MSN-AS-BLOCK, US
36914 520 82 3 KENET-AS, KE
7497 451 180 24 CSTNET-AS-AP Computer Network Information
2018 374 319 71 TENET-1, ZA
1916 310 178 43 Rede Nacional de Ensino e Pesquisa, BR
680 284 1899 249 DFN Verein zur Foerderung eines Deutschen
668 212 648 179 DNIC-AS-00668, US
376 202 162 151 RISQ-AS, CA
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 520 517 KENET-AS, KE
7497 451 427 CSTNET-AS-AP Computer Network Information Cente
2018 374 303 TENET-1, ZA
1916 310 267 Rede Nacional de Ensino e Pesquisa, BR
14618 1019 241 AMAZON-AES, US
5786 198 197 UPRENET, PR
2920 173 166 LACOE, US
10079 145 144 UNIWESTSYD-AS-AP University of Western Sydney,
18558 139 135 NETBLK-RCOEK, US
55824 146 126 NKN-CORE-NW NKN Core Network, IN
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 /15:211 /16:2086 /17:471 /18:490
/19:637 /20:972 /21:1095 /22:1687 /23:1794 /24:14826
/25:48 /26:67 /27:95 /28:16 /29:59 /30:7
/31:0 /32:1
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
16509 666 4071 AMAZON-02, US
36914 496 520 KENET-AS, KE
14618 320 1019 AMAZON-AES, US
8075 126 718 MICROSOFT-CORP-MSN-AS-BLOCK, US
8895 107 110 ISU Internet Services Unit ISU, SA
1916 74 310 Rede Nacional de Ensino e Pesquisa, BR
1 42 128 LVLT-1, US
23024 36 97 OCDE, US
3267 35 79 NIKS, RU
37182 35 36 TERNET, TZ
Complete listing at https://bgp.nsrc.org/REN/UniHawaii/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:3 2:1 3:176 4:2 5:22 6:4
8:2 12:2 13:85 14:93 15:105 16:133
18:158 23:56 24:1 31:4 35:60 37:8
38:11 40:6 41:243 42:11 44:4 45:83
46:10 47:1 49:11 50:10 52:818 54:172
57:2 58:1 59:19 60:6 61:3 62:15
63:39 64:151 65:26 66:101 67:70 68:25
69:67 70:21 71:13 72:20 74:87 75:1
76:44 77:12 78:3 79:10 80:13 81:25
82:7 83:9 84:8 85:55 86:6 87:2
88:1 89:18 91:57 92:6 93:46 94:6
95:3 96:7 97:1 98:14 99:68 102:17
103:344 104:139 107:8 108:38 109:7 111:18
113:5 114:24 115:1 116:14 117:67 118:33
119:30 121:28 122:11 124:42 125:5 128:87
129:43 130:166 131:77 132:63 134:109 135:6
136:226 137:204 138:79 139:28 140:47 141:14
142:67 143:33 144:41 145:8 146:140 147:45
148:210 149:19 150:47 151:41 152:146 153:78
154:45 155:112 156:133 157:39 158:42 159:175
160:13 161:53 162:77 163:67 164:29 165:81
166:5 167:23 168:174 169:14 170:207 171:1
172:22 173:38 174:2 175:5 176:5 177:5
178:3 179:14 180:16 181:1 182:7 184:9
185:115 186:3 187:22 188:17 189:3 190:33
191:13 192:1587 193:329 194:139 195:85 196:143
197:317 198:560 199:378 200:336 201:37 202:465
203:473 204:423 205:173 206:253 207:265 208:143
209:161 210:207 211:3 212:159 213:22 214:9
216:224 217:16 218:23 219:2 220:16 222:2
223:15
End of report
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