[REN-BGP-stats-all] IPv4 R&E Routing Table Report - Guam (R&E) view
REN Routing Table Report
cscora at bgp.nsrc.org
Sat May 31 21:23:52 UTC 2025
IPv4 R&E Routing Table Report 21:20 GMT Sat 31 May, 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: 17950
Prefixes after maximum aggregation (per Origin AS): 8907
Deaggregation factor: 2.02
Unique aggregates announced (without unneeded subnets): 591
Number of IPv4 prefixes with a valid ROA: 7536
Number of IPv4 prefixes with an invalid ROA: 0
Number of IPv4 prefixes with no ROA: 10414
Total ASes present in the Internet Routing Table: 2628
Prefixes per ASN: 6.83
Origin-only ASes present in the Internet Routing Table: 2272
Origin ASes announcing only one prefix: 992
Transit ASes present in the Internet Routing Table: 356
Transit-only ASes present in the Internet Routing Table: 66
Paths with bogon ASNs present in the IPv4 Routing Table: 50
Average AS path length visible in the Internet Routing Table: 6.1
Max AS path length visible: 23
Max AS path prepend of ASN (395156) 12
Prefixes from unregistered ASNs in the Routing Table: 33
Number of instances of unregistered ASNs: 33
Number of 32-bit ASNs allocated by the RIRs: 46546
Number of 32-bit ASNs visible in the Routing Table: 677
Prefixes from 32-bit ASNs in the Routing Table: 1804
Number of bogon 32-bit ASNs visible in the Routing Table: 72
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 1
Number of addresses announced to Internet: 3225392688
Equivalent to 192 /8s, 63 /16s and 150 /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: 1887
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 4097
Total APNIC prefixes after maximum aggregation: 1696
APNIC Deaggregation factor: 2.42
Prefixes being announced from the APNIC address blocks: 4098
Unique aggregates announced from the APNIC address blocks: 6
APNIC Region origin ASes present in the Internet Routing Table: 505
APNIC Prefixes per ASN: 8.11
APNIC Region origin ASes announcing only one prefix: 206
APNIC Region transit ASes present in the Internet Routing Table: 49
Average APNIC Region AS path length visible: 5.9
Max APNIC Region AS path length visible: 16
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: 7882
Total ARIN prefixes after maximum aggregation: 4545
ARIN Deaggregation factor: 1.73
Prefixes being announced from the ARIN address blocks: 7928
Unique aggregates announced from the ARIN address blocks: 146
ARIN Region origin ASes present in the Internet Routing Table: 1222
ARIN Prefixes per ASN: 6.49
ARIN Region origin ASes announcing only one prefix: 419
ARIN Region transit ASes present in the Internet Routing Table: 154
Average ARIN Region AS path length visible: 5.8
Max ARIN Region AS path length visible: 17
Number of ARIN region 32-bit ASNs visible in the Routing Table: 202
Number of ARIN addresses announced to Internet: -2146880336
Equivalent to 128 /8s, 9 /16s and 52 /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: 3566
Total RIPE prefixes after maximum aggregation: 2054
RIPE Deaggregation factor: 1.74
Prefixes being announced from the RIPE address blocks: 3553
Unique aggregates announced from the RIPE address blocks: 437
RIPE Region origin ASes present in the Internet Routing Table: 653
RIPE Prefixes per ASN: 5.44
RIPE Region origin ASes announcing only one prefix: 287
RIPE Region transit ASes present in the Internet Routing Table: 105
Average RIPE Region AS path length visible: 6.7
Max RIPE Region AS path length visible: 17
Number of RIPE region 32-bit ASNs visible in the Routing Table: 151
Number of RIPE addresses announced to Internet: 2971520
Equivalent to 0 /8s, 45 /16s and 87 /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: 1204
Total LACNIC prefixes after maximum aggregation: 435
LACNIC Deaggregation factor: 2.77
Prefixes being announced from the LACNIC address blocks: 1203
Unique aggregates announced from the LACNIC address blocks: 0
LACNIC Region origin ASes present in the Internet Routing Table: 125
LACNIC Prefixes per ASN: 9.62
LACNIC Region origin ASes announcing only one prefix: 52
LACNIC Region transit ASes present in the Internet Routing Table: 19
Average LACNIC Region AS path length visible: 6.4
Max LACNIC Region AS path length visible: 12
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 60
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: 1168
Total AfriNIC prefixes after maximum aggregation: 165
AfriNIC Deaggregation factor: 7.08
Prefixes being announced from the AfriNIC address blocks: 1167
Unique aggregates announced from the AfriNIC address blocks: 2
AfriNIC Region origin ASes present in the Internet Routing Table: 55
AfriNIC Prefixes per ASN: 21.22
AfriNIC Region origin ASes announcing only one prefix: 28
AfriNIC Region transit ASes present in the Internet Routing Table: 10
Average AfriNIC Region AS path length visible: 7.0
Max AfriNIC Region AS path length visible: 23
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 452 786608 29 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 189 262159 87 AARNET-AS-AP Australian Academic and Res
55824 148 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
668 201 786718 104 DNIC-AS-00668, US
376 200 786586 162 RISQ-AS, CA
5786 199 16 1 UPRENET, PR
2920 175 32 6 LACOE, US
2152 141 786777 25 CENIC-2152, US
18558 136 16 1 NETBLK-RCOEK, US
81 129 524806 34 NCREN, US
1 128 524289 50 LVLT-1, US
270 117 312 84 AS270, US
21976 90 262176 19 NJEDGE-NET, 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
680 283 124 35 DFN Verein zur Foerderung eines Deutschen
786 194 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 97 787307 49 SURFNET-NL SURFnet, The Netherlands, NL
2614 92 262164 18 ROEDUNET, RO
137 82 262738 38 ASGARR Consortium GARR, IT
1930 79 262165 5 RCCN Fundacao para a Ciencia e a Tecnolo
3267 76 262166 42 NIKS, RU
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 327 524445 56 Rede Nacional de Ensino e Pesquisa, BR
11340 110 262146 8 Red Universitaria Nacional, CL
271640 68 262144 68 UNIVERSIDADE FEDERAL DE VICOSA, BR
61468 52 262145 5 CEDIA, EC
2715 51 262244 35 Fundacao Carlos Chagas Filho de Amparo a
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
21612 27 16 1 FUNDACAO INSTITUTO OSWALDO CRUZ, BR
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 372 262448 71 TENET-1, ZA
8094 47 262150 4 PUKNET, ZA
37215 36 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 553 82 3 KENET-AS, KE
7497 452 786608 29 CSTNET-AS-AP Computer Network Informatio
2018 372 262448 71 TENET-1, ZA
1916 327 524445 56 Rede Nacional de Ensino e Pesquisa, BR
680 283 124 35 DFN Verein zur Foerderung eines Deutschen
668 201 786718 104 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
786 194 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 452 423 CSTNET-AS-AP Computer Network Information Cente
2018 372 301 TENET-1, ZA
1916 327 271 Rede Nacional de Ensino e Pesquisa, BR
680 283 248 DFN Verein zur Foerderung eines Deutschen Forsc
5786 199 198 UPRENET, PR
2920 175 169 LACOE, US
786 194 149 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 148 136 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
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
26898 UNALLOCATED 208.108.81.0/24 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)
-------------------------------------------------------
/1:367 /2:4470 /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 /16:1792 /17:273 /18:313
/19:394 /20:563 /21:558 /22:905 /23:962 /24:6932
/25:37 /26:58 /27:86 /28:7 /29:48 /30:4
/31:0 /32:1
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
36914 376 553 KENET-AS, KE
8895 63 109 ISU Internet Services Unit ISU, SA
1916 61 327 Rede Nacional de Ensino e Pesquisa, BR
23024 34 41 OCDE, US
3267 32 76 NIKS, RU
28614 32 38 Fundacao Universidade Regional de Blumenau, BR
46115 32 35 LUTHER, US
25977 30 44 HCCS, US
37215 30 36 MAREN, MW
1 29 128 LVLT-1, 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 23:9 24:1 31:1 35:7 37:9
38:11 40:1 41:223 42:18 44:4 45:46
46:5 49:12 50:2 52:1 58:15 59:20
60:6 61:3 62:8 63:32 64:39 65:5
66:42 67:40 68:17 69:12 70:2 71:1
72:8 74:52 76:33 77:9 78:3 79:9
80:13 81:11 82:6 83:8 84:8 85:51
86:6 87:1 89:10 91:41 92:2 93:15
94:2 95:2 96:5 97:1 98:2 101:3
102:3 103:216 104:5 108:10 111:16 113:1
114:24 116:9 117:61 118:1 119:31 121:24
123:8 124:42 125:5 128:51 129:21 130:53
131:37 132:24 134:94 136:87 137:100 138:17
139:6 140:13 141:1 142:20 143:15 144:23
146:124 147:27 148:9 149:8 150:21 151:7
152:136 153:14 154:47 155:58 156:127 157:23
158:20 159:43 160:3 161:7 162:23 163:32
164:5 165:6 167:5 168:46 169:3 170:14
171:1 172:1 175:11 177:6 179:10 180:16
182:11 185:30 186:2 187:24 188:13 189:3
190:16 191:13 192:1000 193:204 194:101 195:49
196:145 197:184 198:258 199:162 200:187 201:33
202:420 203:245 204:197 205:65 206:126 207:127
208:36 209:100 210:137 211:3 212:66 213:3
214:10 216:39 217:4 218:3 220:13 222:1
223:17
End of report
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