[REN-BGP-stats-all] IPv4 R&E Routing Table Report - USP (Global) view
REN Routing Table Report
cscora at bgp.nsrc.org
Thu Jul 31 21:40:16 UTC 2025
IPv4 R&E Routing Table Report 21:35 GMT Thu 31 Jul, 2025
IPv4 BGP Table (Global) as seen at USP.
Report Website: https://bgp.nsrc.org/REN
Detailed Analysis: https://bgp.nsrc.org/REN/USP/
Analysis Summary
----------------
BGP routing table entries examined: 991904
Prefixes after maximum aggregation (per Origin AS): 384214
Deaggregation factor: 2.58
Unique aggregates announced (without unneeded subnets): 488228
Number of IPv4 prefixes with a valid ROA: 558380
Number of IPv4 prefixes with an invalid ROA: 197
Number of IPv4 prefixes with no ROA: 433327
Total ASes present in the Internet Routing Table: 77119
Prefixes per ASN: 12.86
Origin-only ASes present in the Internet Routing Table: 66054
Origin ASes announcing only one prefix: 26936
Transit ASes present in the Internet Routing Table: 11065
Transit-only ASes present in the Internet Routing Table: 556
Paths with bogon ASNs present in the IPv4 Routing Table: 298
Average AS path length visible in the Internet Routing Table: 5.4
Max AS path length visible: 53
Max AS path prepend of ASN (212940) 45
Prefixes from unregistered ASNs in the Routing Table: 1230
Number of instances of unregistered ASNs: 1279
Number of 32-bit ASNs allocated by the RIRs: 46997
Number of 32-bit ASNs visible in the Routing Table: 38669
Prefixes from 32-bit ASNs in the Routing Table: 206313
Number of bogon 32-bit ASNs visible in the Routing Table: 114
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 447
Number of addresses announced to Internet: 3107303936
Equivalent to 185 /8s, 53 /16s and 178 /24s
Percentage of available address space announced: 83.9
Percentage of allocated address space announced: 83.9
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: 323504
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 262862
Total APNIC prefixes after maximum aggregation: 78047
APNIC Deaggregation factor: 3.37
Prefixes being announced from the APNIC address blocks: 254108
Unique aggregates announced from the APNIC address blocks: 104995
APNIC Region origin ASes present in the Internet Routing Table: 14725
APNIC Prefixes per ASN: 17.26
APNIC Region origin ASes announcing only one prefix: 4492
APNIC Region transit ASes present in the Internet Routing Table: 1978
Average APNIC Region AS path length visible: 5.2
Max APNIC Region AS path length visible: 35
Number of APNIC region 32-bit ASNs visible in the Routing Table: 10261
Number of APNIC addresses announced to Internet: 749130496
Equivalent to 44 /8s, 166 /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: 291673
Total ARIN prefixes after maximum aggregation: 132184
ARIN Deaggregation factor: 2.21
Prefixes being announced from the ARIN address blocks: 293141
Unique aggregates announced from the ARIN address blocks: 141483
ARIN Region origin ASes present in the Internet Routing Table: 19249
ARIN Prefixes per ASN: 15.23
ARIN Region origin ASes announcing only one prefix: 7041
ARIN Region transit ASes present in the Internet Routing Table: 1986
Average ARIN Region AS path length visible: 5.0
Max ARIN Region AS path length visible: 35
Number of ARIN region 32-bit ASNs visible in the Routing Table: 5266
Number of ARIN addresses announced to Internet: 1349400064
Equivalent to 80 /8s, 110 /16s and 54 /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: 276751
Total RIPE prefixes after maximum aggregation: 136470
RIPE Deaggregation factor: 2.03
Prefixes being announced from the RIPE address blocks: 275740
Unique aggregates announced from the RIPE address blocks: 178213
RIPE Region origin ASes present in the Internet Routing Table: 28963
RIPE Prefixes per ASN: 9.52
RIPE Region origin ASes announcing only one prefix: 12043
RIPE Region transit ASes present in the Internet Routing Table: 3996
Average RIPE Region AS path length visible: 5.5
Max RIPE Region AS path length visible: 50
Number of RIPE region 32-bit ASNs visible in the Routing Table: 12598
Number of RIPE addresses announced to Internet: 732228096
Equivalent to 43 /8s, 164 /16s and 234 /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: 124666
Total LACNIC prefixes after maximum aggregation: 29886
LACNIC Deaggregation factor: 4.17
Prefixes being announced from the LACNIC address blocks: 121033
Unique aggregates announced from the LACNIC address blocks: 49166
LACNIC Region origin ASes present in the Internet Routing Table: 11266
LACNIC Prefixes per ASN: 10.74
LACNIC Region origin ASes announcing only one prefix: 2650
LACNIC Region transit ASes present in the Internet Routing Table: 2529
Average LACNIC Region AS path length visible: 6.3
Max LACNIC Region AS path length visible: 37
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 9234
Number of LACNIC addresses announced to Internet: 171201536
Equivalent to 10 /8s, 52 /16s and 84 /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: 34722
Total AfriNIC prefixes after maximum aggregation: 6818
AfriNIC Deaggregation factor: 5.09
Prefixes being announced from the AfriNIC address blocks: 47434
Unique aggregates announced from the AfriNIC address blocks: 13994
AfriNIC Region origin ASes present in the Internet Routing Table: 1945
AfriNIC Prefixes per ASN: 24.39
AfriNIC Region origin ASes announcing only one prefix: 710
AfriNIC Region transit ASes present in the Internet Routing Table: 379
Average AfriNIC Region AS path length visible: 6.2
Max AfriNIC Region AS path length visible: 38
Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 1310
Number of AfriNIC addresses announced to Internet: 105091072
Equivalent to 6 /8s, 67 /16s and 144 /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
9808 12380 8762 116 CHINAMOBILE-CN China Mobile Communication
7545 6138 837 624 TPG-INTERNET-AP TPG Telecom Limited, AU
18403 4540 347 25 FPT-AS-AP FPT Telecom Company, VN
9498 4464 535 311 BBIL-AP BHARTI Airtel Ltd., IN
7552 3908 1332 27 VIETEL-AS-AP Viettel Group, VN
7713 3676 1044 66 TELKOMNET-AS-AP PT Telekomunikasi Indones
45899 3283 1868 100 VNPT-AS-VN VNPT Corp, VN
24560 2914 864 510 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd.,
56046 2886 811 177 CMNET-JIANGSU-AP China Mobile communicati
4755 2171 427 182 TATACOMM-AS TATA Communications formerly
Complete listing at https://bgp.nsrc.org/REN/USP/data-ASnet-APNIC
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
16509 13682 40975 5277 AMAZON-02, US
11492 4826 320 606 CABLEONE, US
7155 3855 286 85 VIASAT-SP-BACKBONE, US
6327 3636 1320 82 SHAW, CA
174 3470 8770 859 COGENT-174, US
22773 3342 3029 165 ASN-CXA-ALL-CCI-22773-RDC, US
749 3222 54766 2473 DNIC-AS-00749, US
396982 3200 3856 434 GOOGLE-CLOUD-PLATFORM, US
16625 3061 1297 2225 AKAMAI-AS, US
4155 2893 219 1740 USDA-1, US
Complete listing at https://bgp.nsrc.org/REN/USP/data-ASnet-ARIN
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
12479 7587 1712 148 UNI2-AS, ES
39891 4798 293 63 ALJAWWALSTC-AS, SA
20940 4027 3395 127 AKAMAI-ASN1, NL
9009 3822 362 2137 M247, RO
12389 3115 2315 869 ROSTELECOM-AS PJSC Rostelecom. Technical
34984 2404 361 584 TELLCOM-AS, TR
212238 2316 164 1685 CDNEXT, GB
13188 1605 100 37 TRIOLAN, UA
8452 1579 1852 14 TE-AS TE-AS, EG
203020 1523 191 672 HOSTROYALE, IN
Complete listing at https://bgp.nsrc.org/REN/USP/data-ASnet-RIPE
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
8151 12321 3272 576 UNINET, MX
10620 3481 473 1037 Telmex Colombia S.A., CO
13999 2522 511 354 Mega Cable, S.A. de C.V., MX
11830 1984 369 64 Instituto Costarricense de Electricidad y
28573 1371 2435 269 Claro NXT Telecomunicacoes Ltda, BR
3816 1351 788 208 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC,
6147 1188 371 22 Telefonica del Peru S.A.A., PE
22884 1074 71 374 TOTAL PLAY TELECOMUNICACIONES SA DE CV, M
11664 1072 278 33 Techtel LMDS Comunicaciones Interactivas
6503 1022 373 162 Axtel, S.A.B. de C.V., MX
Complete listing at https://bgp.nsrc.org/REN/USP/data-ASnet-LACNIC
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
24835 1725 660 28 RAYA-AS, EG
29571 1604 102 51 ORANGE-COTE-IVOIRE, CI
36992 1367 1491 365 ETISALAT-MISR, EG
36903 1249 554 96 MT-MPLS, MA
24863 1232 389 20 LINKdotNET-AS, EG
37069 1086 1112 11 MOBINIL, EG
36935 914 520 43 Vodafone-, EG
36914 572 82 3 KENET-AS, KE
20011 568 154 212 INTERNET-SOLUTIONS, ZA
15399 541 57 59 WANANCHI-, KE
Complete listing at https://bgp.nsrc.org/REN/USP/data-ASnet-AFRINIC
Global Per AS prefix count summary
----------------------------------
ASN No of nets /20 equiv MaxAgg Description
16509 13682 40975 5277 AMAZON-02, US
9808 12380 8762 116 CHINAMOBILE-CN China Mobile Communication
8151 12321 3272 576 UNINET, MX
12479 7587 1712 148 UNI2-AS, ES
7545 6138 837 624 TPG-INTERNET-AP TPG Telecom Limited, AU
11492 4826 320 606 CABLEONE, US
39891 4798 293 63 ALJAWWALSTC-AS, SA
18403 4540 347 25 FPT-AS-AP FPT Telecom Company, VN
9498 4464 535 311 BBIL-AP BHARTI Airtel Ltd., IN
20940 4027 3395 127 AKAMAI-ASN1, NL
Complete listing at https://bgp.nsrc.org/REN/USP/data-ASnet
Global Per AS Maximum Aggregation summary
-----------------------------------------
ASN No of nets Net Savings Description
9808 12380 12264 CHINAMOBILE-CN China Mobile Communications Grou
8151 12321 11745 UNINET, MX
12479 7587 7439 UNI2-AS, ES
7545 6138 5514 TPG-INTERNET-AP TPG Telecom Limited, AU
39891 4798 4735 ALJAWWALSTC-AS, SA
18403 4540 4515 FPT-AS-AP FPT Telecom Company, VN
11492 4826 4220 CABLEONE, US
9498 4464 4153 BBIL-AP BHARTI Airtel Ltd., IN
20940 4027 3900 AKAMAI-ASN1, NL
7552 3908 3881 VIETEL-AS-AP Viettel Group, VN
Complete listing at https://bgp.nsrc.org/REN/USP/data-CIDRnet
List of Unregistered Origin ASNs (Global)
-----------------------------------------
Bad AS Designation Net Originated Transit AS Transit AS Name
33123 UNALLOCATED 8.10.69.0/24 174 COGENT-174, US
46639 UNALLOCATED 8.17.66.0/24 701 UUNET, US
53775 UNALLOCATED 8.20.88.0/24 7029 WINDSTREAM, US
393266 UNALLOCATED 8.23.52.0/24 46887 CROWNCASTLE-AS46887, US
398074 UNALLOCATED 8.28.115.0/24 32787 PROLEXIC-TECHNOLOGIES-D
396894 UNALLOCATED 8.28.201.0/24 3356 LEVEL3, US
394936 UNALLOCATED 8.33.224.0/24 22442 HOU-PHONOSCOPE, US
54338 UNALLOCATED 8.33.241.0/24 3356 LEVEL3, US
46639 UNALLOCATED 8.38.73.0/24 3356 LEVEL3, US
395195 UNALLOCATED 8.38.115.0/24 3356 LEVEL3, US
Complete listing at https://bgp.nsrc.org/REN/USP/data-badAS
Advertised Unallocated Addresses
--------------------------------
Unassigned Network ASN Information AS Name
14.192.20.0/22 Origin: 26658 HENGTONG-IDC-LLC, US
14.192.20.0/22 Transit: 21859 ZEN-ECN, US
23.140.216.0/24 Origin: 27176 DATAWAGON, US
23.140.216.0/24 Transit: 20278 NEXEON, US
23.141.0.0/24 Origin: 395350 RESERVED, ZZ
23.141.0.0/24 Transit: 11426 TWC-11426-CAROLINAS, US
23.142.24.0/24 Origin: 62164 HEYMMAN-2, CA
23.142.24.0/24 Transit: 64236 UNREAL-SERVERS, US
23.143.4.0/24 Origin: 401866 MASTER-IT-SUPPORT, PR
23.143.4.0/24 Transit: 46962 HRCOM, PR
Complete listing at https://bgp.nsrc.org/REN/USP/data-add-IANA
Number of prefixes announced per prefix length (Global)
-------------------------------------------------------
!!Default route being announced!!
/1:0 /2:0 /3:0 /4:0 /5:0 /6:0
/7:0 /8:16 /9:14 /10:41 /11:92 /12:298
/13:581 /14:1209 /15:2153 /16:13792 /17:8231 /18:13503
/19:24576 /20:43996 /21:51777 /22:112088 /23:102946 /24:616590
/25:0 /26:0 /27:0 /28:0 /29:0 /30:0
/31:0 /32:0
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
8151 6540 12321 UNINET, MX
12479 6538 7587 UNI2-AS, ES
11492 3618 4826 CABLEONE, US
39891 3489 4798 ALJAWWALSTC-AS, SA
6327 3433 3636 SHAW, CA
7155 2814 3855 VIASAT-SP-BACKBONE, US
22773 2494 3342 ASN-CXA-ALL-CCI-22773-RDC, US
16509 2361 13682 AMAZON-02, US
30036 2291 2632 MEDIACOM-ENTERPRISE-BUSINESS, US
10620 2197 3481 Telmex Colombia S.A., CO
Complete listing at https://bgp.nsrc.org/REN/USP/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:2412 2:1527 3:857 4:10 5:4745 6:163
7:6 8:1547 9:1 11:172 12:1340 13:456
14:2569 15:369 16:286 17:377 18:898 20:561
21:4 22:188 23:7774 24:2726 25:2 27:2801
29:19 31:3346 32:35 33:1 34:80 35:260
36:4047 37:4563 38:9473 39:948 40:247 41:4243
42:2027 43:2692 44:379 45:18608 46:5083 47:336
49:1892 50:2029 51:591 52:1554 54:325 55:1089
56:11 57:274 58:2178 59:1295 60:1172 61:2883
62:2980 63:1791 64:5552 65:2161 66:4758 67:3106
68:1069 69:3906 70:1039 71:633 72:2851 74:2807
75:1507 76:610 77:2772 78:1917 79:1704 80:2205
81:2058 82:3189 83:1439 84:1894 85:3492 86:1093
87:2133 88:1342 89:4410 90:778 91:8419 92:2721
93:2950 94:4060 95:4424 96:1469 97:309 98:956
99:695 100:71 101:1218 102:3905 103:32278 104:5223
105:807 106:971 107:2657 108:1264 109:4180 110:2230
111:3428 112:2348 113:1845 114:1967 115:2237 116:2071
117:2631 118:2990 119:1911 120:2174 121:1334 122:2792
123:2237 124:1653 125:2876 126:91 128:1624 129:969
130:1307 131:2066 132:783 133:450 134:1600 135:351
136:1461 137:1266 138:2835 139:1596 140:1629 141:1520
142:1912 143:1962 144:1170 145:564 146:2182 147:2098
148:2728 149:2940 150:1273 151:2254 152:2074 153:590
154:7585 155:1856 156:3081 157:1949 158:1359 159:2524
160:3605 161:1901 162:3897 163:2243 164:1876 165:2424
166:1536 167:2011 168:3964 169:787 170:5134 171:998
172:4239 173:3406 174:919 175:1327 176:3732 177:4742
178:3931 179:2327 180:2587 181:4134 182:3550 183:2205
184:2082 185:21611 186:5249 187:4659 188:4266 189:4378
190:9558 191:1512 192:11342 193:9478 194:7778 195:5595
196:3286 197:3182 198:6135 199:8620 200:8227 201:6383
202:10385 203:10677 204:4642 205:3579 206:4502 207:3553
208:4282 209:5124 210:4698 211:2603 212:4559 213:3820
214:1026 215:48 216:6802 217:3258 218:1394 219:399
220:2148 221:1207 222:740 223:2711
End of report
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