[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 30 21:29:05 UTC 2025
IPv4 R&E Routing Table Report 21:20 GMT Wed 30 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: 18282
Prefixes after maximum aggregation (per Origin AS): 9102
Deaggregation factor: 2.01
Unique aggregates announced (without unneeded subnets): 607
Number of IPv4 prefixes with a valid ROA: 7544
Number of IPv4 prefixes with an invalid ROA: 0
Number of IPv4 prefixes with no ROA: 10738
Total ASes present in the Internet Routing Table: 2681
Prefixes per ASN: 6.82
Origin-only ASes present in the Internet Routing Table: 2313
Origin ASes announcing only one prefix: 1011
Transit ASes present in the Internet Routing Table: 368
Transit-only ASes present in the Internet Routing Table: 71
Paths with bogon ASNs present in the IPv4 Routing Table: 54
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: 36
Number of instances of unregistered ASNs: 36
Number of 32-bit ASNs allocated by the RIRs: 46303
Number of 32-bit ASNs visible in the Routing Table: 692
Prefixes from 32-bit ASNs in the Routing Table: 1857
Number of bogon 32-bit ASNs visible in the Routing Table: 63
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 1
Number of addresses announced to Internet: 3225431088
Equivalent to 192 /8s, 64 /16s and 44 /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: 1957
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 4102
Total APNIC prefixes after maximum aggregation: 1695
APNIC Deaggregation factor: 2.42
Prefixes being announced from the APNIC address blocks: 4103
Unique aggregates announced from the APNIC address blocks: 6
APNIC Region origin ASes present in the Internet Routing Table: 504
APNIC Prefixes per ASN: 8.14
APNIC Region origin ASes announcing only one prefix: 204
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: 231
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: 8162
Total ARIN prefixes after maximum aggregation: 4736
ARIN Deaggregation factor: 1.72
Prefixes being announced from the ARIN address blocks: 8210
Unique aggregates announced from the ARIN address blocks: 148
ARIN Region origin ASes present in the Internet Routing Table: 1260
ARIN Prefixes per ASN: 6.52
ARIN Region origin ASes announcing only one prefix: 437
ARIN Region transit ASes present in the Internet Routing Table: 160
Average ARIN Region AS path length visible: 5.3
Max ARIN Region AS path length visible: 17
Number of ARIN region 32-bit ASNs visible in the Routing Table: 214
Number of ARIN addresses announced to Internet: -2146878032
Equivalent to 128 /8s, 9 /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: 3595
Total RIPE prefixes after maximum aggregation: 2046
RIPE Deaggregation factor: 1.76
Prefixes being announced from the RIPE address blocks: 3582
Unique aggregates announced from the RIPE address blocks: 451
RIPE Region origin ASes present in the Internet Routing Table: 654
RIPE Prefixes per ASN: 5.48
RIPE Region origin ASes announcing only one prefix: 285
RIPE Region transit ASes present in the Internet Routing Table: 106
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: 151
Number of RIPE addresses announced to Internet: 3007616
Equivalent to 0 /8s, 45 /16s and 228 /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: 1230
Total LACNIC prefixes after maximum aggregation: 447
LACNIC Deaggregation factor: 2.75
Prefixes being announced from the LACNIC address blocks: 1230
Unique aggregates announced from the LACNIC address blocks: 0
LACNIC Region origin ASes present in the Internet Routing Table: 134
LACNIC Prefixes per ASN: 9.18
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: 5.5
Max LACNIC Region AS path length visible: 11
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 64
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: 1157
Total AfriNIC prefixes after maximum aggregation: 163
AfriNIC Deaggregation factor: 7.10
Prefixes being announced from the AfriNIC address blocks: 1156
Unique aggregates announced from the AfriNIC address blocks: 2
AfriNIC Region origin ASes present in the Internet Routing Table: 54
AfriNIC Prefixes per ASN: 21.41
AfriNIC Region origin ASes announcing only one prefix: 29
AfriNIC Region transit ASes present in the Internet Routing Table: 9
Average AfriNIC Region AS path length visible: 5.9
Max AfriNIC Region AS path length visible: 22
Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 32
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 454 262242 30 CSTNET-AS-AP Computer Network Informatio
1237 196 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 146 524306 11 NKN-CORE-NW NKN Core Network, IN
10079 145 16 1 UNIWESTSYD-AS-AP University of Western Sy
24313 70 16 1 NSW-DET-AS NSW Department of Education, A
4621 67 262178 14 UNINET-AS-AP UNINET-, TH
4762 64 4 1 MAHIDOL-BORDER-AS Mahidol University, Tha
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
668 207 524574 101 DNIC-AS-00668, US
376 200 786586 162 RISQ-AS, CA
5786 199 16 1 UPRENET, PR
2920 169 34 7 LACOE, US
2152 153 786717 65 CENIC-2152, US
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
680 284 140 36 DFN Verein zur Foerderung eines Deutschen
786 195 786924 45 JANET Jisc Services Limited, GB
559 114 262649 34 SWITCH Peering requests: peering at switch.
8895 109 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 326 524445 55 Rede Nacional de Ensino e Pesquisa, BR
11340 110 262146 8 Red Universitaria Nacional, CL
271640 68 262144 68 UNIVERSIDADE FEDERAL DE VICOSA, BR
2715 52 262244 36 Fundacao Carlos Chagas Filho de Amparo a
61468 52 262145 5 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
20191 28 16 1 Pontificia Universidad Catolica de Chile,
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 547 82 3 KENET-AS, KE
2018 373 262448 71 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 9 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 547 82 3 KENET-AS, KE
7497 454 262242 30 CSTNET-AS-AP Computer Network Informatio
2018 373 262448 71 TENET-1, ZA
1916 326 524445 55 Rede Nacional de Ensino e Pesquisa, BR
680 284 140 36 DFN Verein zur Foerderung eines Deutschen
668 207 524574 101 DNIC-AS-00668, US
376 200 786586 162 RISQ-AS, CA
5786 199 16 1 UPRENET, PR
1237 196 262194 174 KREONET-AS-KR KISTI, KR
786 195 786924 45 JANET Jisc Services Limited, GB
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 454 424 CSTNET-AS-AP Computer Network Information Cente
2018 373 302 TENET-1, ZA
1916 326 271 Rede Nacional de Ensino e Pesquisa, BR
680 284 248 DFN Verein zur Foerderung eines Deutschen Forsc
5786 199 198 UPRENET, PR
2920 169 162 LACOE, US
786 195 150 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
55824 146 135 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
65208 PRIVATE 63.225.1.0/24 11570 AS11570, US
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
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)
-------------------------------------------------------
/1:378 /2:4569 /3:1 /4:0 /5:0 /6:0
/7:0 /8:0 /9:1 /10:1 /11:1 /12:11
/13:18 /14:31 /15:114 /16:1803 /17:275 /18:309
/19:399 /20:578 /21:566 /22:916 /23:974 /24:7109
/25:36 /26:57 /27:87 /28:4 /29:44 /30:0
/31:0 /32:0
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
36914 375 547 KENET-AS, KE
8895 63 109 ISU Internet Services Unit ISU, SA
1916 61 326 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 23:10 24:1 31:1 35:6 37:9
38:11 40:1 41:221 42:18 44:4 45:47
46:4 47:1 49:8 50:4 52:1 58:15
59:20 60:6 61:3 62:8 63:37 64:45
65:6 66:56 67:43 68:17 69:17 70:2
71:1 72:8 74:52 76:34 77:9 78:3
79:9 80:13 81:24 82:6 83:8 84:8
85:51 86:5 87:1 89:10 91:41 92:2
93:14 94:2 95:2 96:5 97:1 98:2
101:3 102:2 103:208 104:43 107:2 108:10
111:16 113:1 114:24 116:9 117:61 118:1
119:31 121:24 123:8 124:42 125:5 128:51
129:21 130:53 131:38 132:27 134:92 136:87
137:99 138:17 139:12 140:14 141:2 142:19
143:15 144:26 146:124 147:27 148:10 149:7
150:21 151:8 152:136 153:14 154:45 155:58
156:127 157:23 158:20 159:44 160:3 161:7
162:24 163:32 164:7 165:6 167:24 168:46
169:3 170:21 171:1 172:1 173:5 175:11
177:5 179:10 180:16 182:10 185:30 186:2
187:24 188:12 189:3 190:16 191:13 192:1021
193:207 194:99 195:49 196:146 197:184 198:263
199:168 200:190 201:33 202:423 203:243 204:203
205:65 206:123 207:126 208:38 209:101 210:153
211:3 212:65 213:3 214:10 216:43 217:4
218:3 220:13 222:1 223:16
End of report
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