[REN-BGP-stats-all] IPv4 R&E Routing Table Report - Guam (R&E) view
REN Routing Table Report
cscora at bgp.nsrc.org
Wed Apr 16 21:29:06 UTC 2025
IPv4 R&E Routing Table Report 21:20 GMT Wed 16 Apr, 2025
IPv4 BGP Table (R&E) as seen at Guam.
Report Website: https://bgp.nsrc.org/REN
Detailed Analysis: https://bgp.nsrc.org/REN/UniGuam/
Analysis Summary
----------------
BGP routing table entries examined: 18297
Prefixes after maximum aggregation (per Origin AS): 9134
Deaggregation factor: 2.00
Unique aggregates announced (without unneeded subnets): 606
Number of IPv4 prefixes with a valid ROA: 7449
Number of IPv4 prefixes with an invalid ROA: 0
Number of IPv4 prefixes with no ROA: 10848
Total ASes present in the Internet Routing Table: 2686
Prefixes per ASN: 6.81
Origin-only ASes present in the Internet Routing Table: 2312
Origin ASes announcing only one prefix: 1021
Transit ASes present in the Internet Routing Table: 374
Transit-only ASes present in the Internet Routing Table: 77
Paths with bogon ASNs present in the IPv4 Routing Table: 50
Average AS path length visible in the Internet Routing Table: 5.7
Max AS path length visible: 22
Max AS path prepend of ASN (395156) 12
Prefixes from unregistered ASNs in the Routing Table: 34
Number of instances of unregistered ASNs: 34
Number of 32-bit ASNs allocated by the RIRs: 46209
Number of 32-bit ASNs visible in the Routing Table: 694
Prefixes from 32-bit ASNs in the Routing Table: 1839
Number of bogon 32-bit ASNs visible in the Routing Table: 70
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 1
Number of addresses announced to Internet: 3225398064
Equivalent to 192 /8s, 63 /16s and 171 /24s
Percentage of available address space announced: 87.1
Percentage of allocated address space announced: 87.1
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: 1926
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 4124
Total APNIC prefixes after maximum aggregation: 1697
APNIC Deaggregation factor: 2.43
Prefixes being announced from the APNIC address blocks: 4125
Unique aggregates announced from the APNIC address blocks: 6
APNIC Region origin ASes present in the Internet Routing Table: 502
APNIC Prefixes per ASN: 8.22
APNIC Region origin ASes announcing only one prefix: 205
APNIC Region transit ASes present in the Internet Routing Table: 50
Average APNIC Region AS path length visible: 6.4
Max APNIC Region AS path length visible: 15
Number of APNIC region 32-bit ASNs visible in the Routing Table: 232
Number of APNIC addresses announced to Internet: 590336
Equivalent to 0 /8s, 9 /16s and 2 /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: 8022
Total ARIN prefixes after maximum aggregation: 4724
ARIN Deaggregation factor: 1.70
Prefixes being announced from the ARIN address blocks: 8068
Unique aggregates announced from the ARIN address blocks: 148
ARIN Region origin ASes present in the Internet Routing Table: 1255
ARIN Prefixes per ASN: 6.43
ARIN Region origin ASes announcing only one prefix: 440
ARIN Region transit ASes present in the Internet Routing Table: 162
Average ARIN Region AS path length visible: 5.3
Max ARIN Region AS path length visible: 18
Number of ARIN region 32-bit ASNs visible in the Routing Table: 212
Number of ARIN addresses announced to Internet: -2146878288
Equivalent to 128 /8s, 9 /16s and 60 /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: 3592
Total RIPE prefixes after maximum aggregation: 2054
RIPE Deaggregation factor: 1.75
Prefixes being announced from the RIPE address blocks: 3579
Unique aggregates announced from the RIPE address blocks: 450
RIPE Region origin ASes present in the Internet Routing Table: 653
RIPE Prefixes per ASN: 5.48
RIPE Region origin ASes announcing only one prefix: 284
RIPE Region transit ASes present in the Internet Routing Table: 104
Average RIPE Region AS path length visible: 5.7
Max RIPE Region AS path length visible: 16
Number of RIPE region 32-bit ASNs visible in the Routing Table: 150
Number of RIPE addresses announced to Internet: 2974848
Equivalent to 0 /8s, 45 /16s and 100 /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: 1386
Total LACNIC prefixes after maximum aggregation: 484
LACNIC Deaggregation factor: 2.86
Prefixes being announced from the LACNIC address blocks: 1386
Unique aggregates announced from the LACNIC address blocks: 0
LACNIC Region origin ASes present in the Internet Routing Table: 141
LACNIC Prefixes per ASN: 9.83
LACNIC Region origin ASes announcing only one prefix: 60
LACNIC Region transit ASes present in the Internet Routing Table: 25
Average LACNIC Region AS path length visible: 5.9
Max LACNIC Region AS path length visible: 12
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 67
Number of LACNIC addresses announced to Internet: 0
Equivalent to 0 /8s, 0 /16s and 0 /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: 1139
Total AfriNIC prefixes after maximum aggregation: 162
AfriNIC Deaggregation factor: 7.03
Prefixes being announced from the AfriNIC address blocks: 1138
Unique aggregates announced from the AfriNIC address blocks: 2
AfriNIC Region origin ASes present in the Internet Routing Table: 55
AfriNIC Prefixes per ASN: 20.69
AfriNIC Region origin ASes announcing only one prefix: 32
AfriNIC Region transit ASes present in the Internet Routing Table: 10
Average AfriNIC Region AS path length visible: 5.7
Max AfriNIC Region AS path length visible: 22
Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 33
Number of AfriNIC addresses announced to Internet: 1073743872
Equivalent to 64 /8s, 0 /16s and 8 /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 453 262242 30 CSTNET-AS-AP Computer Network Informatio
1237 197 262194 174 KREONET-AS-KR KISTI, KR
4538 193 789723 50 ERX-CERNET-BKB China Education and Resea
7575 191 262159 88 AARNET-AS-AP Australian Academic and Res
55824 147 524306 12 NKN-CORE-NW NKN Core Network, IN
10079 145 16 1 UNIWESTSYD-AS-AP University of Western Sy
4762 75 4 1 MAHIDOL-BORDER-AS Mahidol University, Tha
24313 70 16 1 NSW-DET-AS NSW Department of Education, A
4621 67 262178 14 UNINET-AS-AP UNINET-, TH
1659 61 1466 35 ERX-TANET-ASN1 Taiwan Academic Network TA
Complete listing at https://bgp.nsrc.org/REN/UniGuam/data-ASnet-APNIC
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
668 212 786718 105 DNIC-AS-00668, US
376 200 786586 162 RISQ-AS, CA
2920 169 34 7 LACOE, US
2152 152 524573 64 CENIC-2152, US
5786 143 16 1 UPRENET, PR
18558 139 18 4 NETBLK-RCOEK, US
81 129 524806 34 NCREN, US
1 128 524289 50 LVLT-1, US
270 117 312 84 AS270, US
23024 99 524292 18 OCDE, US
Complete listing at https://bgp.nsrc.org/REN/UniGuam/data-ASnet-ARIN
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
680 285 140 36 DFN Verein zur Foerderung eines Deutschen
786 197 786924 45 JANET Jisc Services Limited, GB
559 114 262649 34 SWITCH Peering requests: peering at switch.
8895 108 262168 5 ISU Internet Services Unit ISU, SA
1103 98 787323 50 SURFNET-NL SURFnet, The Netherlands, NL
2614 89 262164 18 ROEDUNET, RO
137 82 262738 38 ASGARR Consortium GARR, IT
3267 80 262166 42 NIKS, RU
1930 79 262165 5 RCCN Fundacao para a Ciencia e a Tecnolo
553 75 524641 75 BELWUE BelWue-Koordination, DE
Complete listing at https://bgp.nsrc.org/REN/UniGuam/data-ASnet-RIPE
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
1916 311 524445 55 Rede Nacional de Ensino e Pesquisa, BR
28391 159 262149 31 Universidad Juarez Autonoma de Tabasco,
11340 110 262146 8 Red Universitaria Nacional, CL
271640 67 0 67 UNIVERSIDADE FEDERAL DE VICOSA, BR
2715 52 262244 36 Fundacao Carlos Chagas Filho de Amparo a
61468 52 262144 4 CEDIA, EC
19611 48 16 13 Associacao Antonio Vieira - Unisinos, BR
3596 40 262150 3 Universidad Autonoma Metropolitana, MX
28614 38 2 2 Fundacao Universidade Regional de Blumena
1251 37 524316 27 FUNDACAO DE AMPARO A PESQUISA DO ESTADO
Complete listing at https://bgp.nsrc.org/REN/UniGuam/data-ASnet-LACNIC
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
36914 553 82 3 KENET-AS, KE
2018 351 262448 70 TENET-1, ZA
8094 47 262150 4 PUKNET, ZA
37215 34 8 1 MAREN, MW
6879 24 2 9 ENSTINET-, EG
30983 12 524288 5 MARWAN-AS, MA
37501 11 49 6 UOFS, ZA
327700 11 16 1 MoRENet, MZ
37654 10 1 6 RwEdNet-AS, RW
37661 10 262148 2 NRaE1-AS, NG
Complete listing at https://bgp.nsrc.org/REN/UniGuam/data-ASnet-AFRINIC
Global Per AS prefix count summary
----------------------------------
ASN No of nets /20 equiv MaxAgg Description
36914 553 82 3 KENET-AS, KE
7497 453 262242 30 CSTNET-AS-AP Computer Network Informatio
2018 351 262448 70 TENET-1, ZA
1916 311 524445 55 Rede Nacional de Ensino e Pesquisa, BR
680 285 140 36 DFN Verein zur Foerderung eines Deutschen
668 212 786718 105 DNIC-AS-00668, US
376 200 786586 162 RISQ-AS, CA
786 197 786924 45 JANET Jisc Services Limited, GB
1237 197 262194 174 KREONET-AS-KR KISTI, KR
4538 193 789723 50 ERX-CERNET-BKB China Education and Resea
Complete listing at https://bgp.nsrc.org/REN/UniGuam/data-ASnet
Global Per AS Maximum Aggregation summary
-----------------------------------------
ASN No of nets Net Savings Description
7497 453 423 CSTNET-AS-AP Computer Network Information Cente
2018 351 281 TENET-1, ZA
1916 311 256 Rede Nacional de Ensino e Pesquisa, BR
680 285 249 DFN Verein zur Foerderung eines Deutschen Forsc
2920 169 162 LACOE, US
786 197 152 JANET Jisc Services Limited, GB
10079 145 144 UNIWESTSYD-AS-AP University of Western Sydney,
4538 193 143 ERX-CERNET-BKB China Education and Research Net
5786 143 142 UPRENET, PR
55824 147 135 NKN-CORE-NW NKN Core Network, IN
Complete listing at https://bgp.nsrc.org/REN/UniGuam/data-CIDRnet
List of Unregistered Origin ASNs (Global)
-----------------------------------------
Bad AS Designation Net Originated Transit AS Transit AS Name
36288 UNALLOCATED 64.79.154.0/24 293 ESNET, US
26971 UNALLOCATED 129.111.0.0/16 276 OTS-AS-276, US
26898 UNALLOCATED 131.187.248.0/2 3112 OARNET-AS-1, US
26898 UNALLOCATED 131.187.248.0/2 3112 OARNET-AS-1, US
26898 UNALLOCATED 131.187.249.0/2 3112 OARNET-AS-1, US
26898 UNALLOCATED 131.187.250.0/2 3112 OARNET-AS-1, US
26898 UNALLOCATED 131.187.251.0/2 3112 OARNET-AS-1, US
26898 UNALLOCATED 198.30.187.0/24 3112 OARNET-AS-1, US
26898 UNALLOCATED 208.108.80.0/20 3112 OARNET-AS-1, US
26898 UNALLOCATED 208.108.80.0/24 3112 OARNET-AS-1, US
Complete listing at https://bgp.nsrc.org/REN/UniGuam/data-badAS
Advertised Unallocated Addresses
--------------------------------
Unassigned Network ASN Information AS Name
164.160.192.0/2 Origin: 37661 NRaE1-AS, NG
164.160.192.0/2 Transit: 37288 WACREN, SN
Complete listing at https://bgp.nsrc.org/REN/UniGuam/data-add-IANA
Number of prefixes announced per prefix length (Global)
-------------------------------------------------------
/1:371 /2:4616 /3:3 /4:0 /5:0 /6:0
/7:0 /8:0 /9:1 /10:1 /11:1 /12:11
/13:18 /14:31 /15:114 /16:1809 /17:270 /18:302
/19:386 /20:577 /21:570 /22:903 /23:961 /24:7120
/25:35 /26:50 /27:86 /28:8 /29:48 /30:4
/31:0 /32:1
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
36914 377 553 KENET-AS, KE
8895 65 108 ISU Internet Services Unit ISU, SA
1916 52 311 Rede Nacional de Ensino e Pesquisa, BR
3267 36 80 NIKS, RU
23024 34 99 OCDE, US
28614 32 38 Fundacao Universidade Regional de Blumenau, BR
46115 32 35 LUTHER, US
25977 30 44 HCCS, US
1 29 128 LVLT-1, US
27609 29 45 USC-UNIVERSITY-HOSPITAL, US
Complete listing at https://bgp.nsrc.org/REN/UniGuam/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:2 4:2 5:16 6:4 8:2 12:2
14:93 23:8 24:1 31:1 35:6 37:9
38:11 40:1 41:223 42:18 44:4 45:48
46:4 47:1 49:8 50:2 52:1 58:15
59:20 60:6 61:3 62:8 63:32 64:44
65:5 66:42 67:41 68:17 69:17 70:2
71:1 72:8 74:52 76:35 77:10 78:3
79:9 80:13 81:24 82:6 83:8 84:8
85:51 86:5 87:1 89:10 91:40 92:2
93:14 94:2 95:2 96:5 97:1 98:2
101:3 102:3 103:209 104:43 108:10 111:16
113:1 114:24 116:9 117:61 118:1 119:30
121:24 123:8 124:42 125:5 128:50 129:21
130:53 131:37 132:28 134:92 136:70 137:99
138:17 139:13 140:14 141:2 142:19 143:15
144:22 146:124 147:33 148:88 149:7 150:21
151:8 152:136 153:14 154:42 155:57 156:127
157:24 158:20 159:44 160:3 161:7 162:23
163:31 164:8 165:5 167:8 168:46 169:3
170:15 171:1 172:1 173:5 175:11 177:8
179:10 180:16 182:11 185:30 186:2 187:24
188:12 189:3 190:16 191:13 192:1020 193:209
194:99 195:49 196:136 197:185 198:264 199:169
200:186 201:34 202:427 203:242 204:204 205:65
206:125 207:123 208:36 209:102 210:153 211:3
212:67 213:3 214:10 216:43 217:4 218:3
220:13 222:1 223:16
End of report
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