[REN-BGP-stats-all] IPv4 R&E Routing Table Report - UH (R&E) view
REN Routing Table Report
cscora at bgp.nsrc.org
Fri Feb 7 22:25:54 UTC 2025
IPv4 R&E Routing Table Report 22:25 GMT Fri 07 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: 24948
Prefixes after maximum aggregation (per Origin AS): 13708
Deaggregation factor: 1.82
Unique aggregates announced (without unneeded subnets): 15960
Number of IPv4 prefixes with a valid ROA: 13474
Number of IPv4 prefixes with an invalid ROA: 3
Number of IPv4 prefixes with no ROA: 11471
Total ASes present in the Internet Routing Table: 2702
Prefixes per ASN: 9.23
Origin-only ASes present in the Internet Routing Table: 2320
Origin ASes announcing only one prefix: 1036
Transit ASes present in the Internet Routing Table: 382
Transit-only ASes present in the Internet Routing Table: 80
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: 21
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: 46090
Number of 32-bit ASNs visible in the Routing Table: 651
Prefixes from 32-bit ASNs in the Routing Table: 1794
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: 296243432
Equivalent to 17 /8s, 168 /16s and 80 /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: 3620
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 3823
Total APNIC prefixes after maximum aggregation: 1600
APNIC Deaggregation factor: 2.39
Prefixes being announced from the APNIC address blocks: 4006
Unique aggregates announced from the APNIC address blocks: 2012
APNIC Region origin ASes present in the Internet Routing Table: 430
APNIC Prefixes per ASN: 9.32
APNIC Region origin ASes announcing only one prefix: 184
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: 186
Number of APNIC addresses announced to Internet: 33250344
Equivalent to 1 /8s, 251 /16s and 92 /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: 14835
Total ARIN prefixes after maximum aggregation: 8482
ARIN Deaggregation factor: 1.75
Prefixes being announced from the ARIN address blocks: 14160
Unique aggregates announced from the ARIN address blocks: 9506
ARIN Region origin ASes present in the Internet Routing Table: 1311
ARIN Prefixes per ASN: 10.80
ARIN Region origin ASes announcing only one prefix: 464
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: 214
Number of ARIN addresses announced to Internet: 174865904
Equivalent to 10 /8s, 108 /16s and 61 /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: 3661
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: 3500
RIPE Region origin ASes present in the Internet Routing Table: 668
RIPE Prefixes per ASN: 6.18
RIPE Region origin ASes announcing only one prefix: 300
RIPE Region transit ASes present in the Internet Routing Table: 109
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: 155
Number of RIPE addresses announced to Internet: 80808320
Equivalent to 4 /8s, 209 /16s and 9 /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: 1469
Total LACNIC prefixes after maximum aggregation: 543
LACNIC Deaggregation factor: 2.71
Prefixes being announced from the LACNIC address blocks: 1479
Unique aggregates announced from the LACNIC address blocks: 715
LACNIC Region origin ASes present in the Internet Routing Table: 157
LACNIC Prefixes per ASN: 9.42
LACNIC Region origin ASes announcing only one prefix: 55
LACNIC Region transit ASes present in the Internet Routing Table: 23
Average LACNIC Region AS path length visible: 5.2
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: 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: 1159
Total AfriNIC prefixes after maximum aggregation: 171
AfriNIC Deaggregation factor: 6.78
Prefixes being announced from the AfriNIC address blocks: 1165
Unique aggregates announced from the AfriNIC address blocks: 218
AfriNIC Region origin ASes present in the Internet Routing Table: 55
AfriNIC Prefixes per ASN: 21.18
AfriNIC Region origin ASes announcing only one prefix: 33
AfriNIC Region transit ASes present in the Internet Routing Table: 11
Average AfriNIC Region AS path length visible: 4.8
Max AfriNIC Region AS path length visible: 21
Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 31
Number of AfriNIC addresses announced to Internet: 2552064
Equivalent to 0 /8s, 38 /16s and 241 /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 450 180 24 CSTNET-AS-AP Computer Network Information
1237 195 74 146 KREONET-AS-KR KISTI, KR
7575 190 298 122 AARNET-AS-AP Australian Academic and Rese
55824 147 19 21 NKN-CORE-NW NKN Core Network, IN
10079 144 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 4090 4948 1973 AMAZON-02, US
14618 1012 4445 772 AMAZON-AES, US
8075 713 16017 601 MICROSOFT-CORP-MSN-AS-BLOCK, US
2152 431 507 99 CENIC-2152, US
2920 221 44 45 LACOE, US
668 211 647 178 DNIC-AS-00668, US
376 202 162 151 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
786 208 1767 183 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 93 26 73 ROEDUNET, RO
8987 86 243 62 AMAZON EXPANSION, IE
137 79 676 75 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 228 178 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
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 549 82 3 KENET-AS, KE
2018 375 319 71 TENET-1, ZA
37182 36 8 1 TERNET, TZ
37215 34 8 1 MAREN, MW
8094 31 26 12 PUKNET, ZA
6879 24 2 9 ENSTINET-, EG
37661 12 8 4 NRaE1-AS, NG
37501 11 49 6 UOFS, ZA
327700 10 16 1 MoRENet, MZ
36982 8 33 8 UCT, ZA
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 4090 4948 1973 AMAZON-02, US
14618 1012 4445 772 AMAZON-AES, US
8075 713 16017 601 MICROSOFT-CORP-MSN-AS-BLOCK, US
36914 549 82 3 KENET-AS, KE
7497 450 180 24 CSTNET-AS-AP Computer Network Information
2152 431 507 99 CENIC-2152, US
2018 375 319 71 TENET-1, ZA
680 284 1899 249 DFN Verein zur Foerderung eines Deutschen
1916 228 178 44 Rede Nacional de Ensino e Pesquisa, BR
2920 221 44 45 LACOE, US
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 549 546 KENET-AS, KE
7497 450 426 CSTNET-AS-AP Computer Network Information Cente
2152 431 332 CENIC-2152, US
2018 375 304 TENET-1, ZA
14618 1012 240 AMAZON-AES, US
5786 198 197 UPRENET, PR
1916 228 184 Rede Nacional de Ensino e Pesquisa, BR
2920 221 176 LACOE, US
10079 144 143 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 /16:2079 /17:468 /18:491
/19:641 /20:978 /21:1098 /22:1692 /23:1843 /24:14997
/25:40 /26:60 /27:96 /28:16 /29:59 /30:7
/31:0 /32:0
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
16509 671 4090 AMAZON-02, US
36914 525 549 KENET-AS, KE
14618 321 1012 AMAZON-AES, US
8075 126 713 MICROSOFT-CORP-MSN-AS-BLOCK, US
8895 107 110 ISU Internet Services Unit ISU, SA
1916 60 228 Rede Nacional de Ensino e Pesquisa, BR
2152 53 431 CENIC-2152, US
1 42 128 LVLT-1, US
23024 36 97 OCDE, US
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 5:21 6:4
8:2 12:1 13:84 14:93 15:103 16:129
18:158 23:54 24:1 31:4 35:53 38:11
40:6 41:253 42:11 44:4 45:86 46:10
47:1 49:11 50:11 52:835 54:178 57:2
58:1 59:19 60:6 61:3 62:15 63:39
64:154 65:26 66:101 67:70 68:28 69:67
70:21 71:15 72:20 74:86 75:1 76:47
77:12 78:3 79:10 80:14 81:26 82:8
83:7 84:8 85:51 86:6 87:2 88:1
89:18 91:56 92:6 93:39 94:6 95:3
96:7 97:1 98:14 99:68 102:17 103:281
104:139 107:8 108:38 109:7 111:18 113:5
114:24 115:1 116:14 117:66 118:33 119:30
121:28 122:11 124:42 125:5 128:86 129:42
130:168 131:80 132:63 134:109 135:6 136:225
137:244 138:80 139:28 140:47 141:14 142:66
143:33 144:43 145:8 146:140 147:74 148:210
149:20 150:47 151:41 152:142 153:78 154:45
155:113 156:133 157:39 158:43 159:174 160:12
161:51 162:77 163:65 164:29 165:80 166:5
167:39 168:174 169:14 170:207 171:1 172:21
173:37 174:2 175:5 176:5 177:6 178:3
179:10 180:16 181:1 182:6 184:9 185:115
186:3 187:22 188:18 189:3 190:34 191:13
192:1572 193:337 194:137 195:84 196:144 197:335
198:628 199:372 200:276 201:37 202:469 203:473
204:438 205:202 206:248 207:314 208:141 209:205
210:205 211:3 212:159 213:24 214:9 216:227
217:16 218:23 219:2 220:16 222:2 223:15
End of report
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