IPv4 R&E Routing Table Report 21:35 GMT Fri 30 May, 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: 985254 Prefixes after maximum aggregation (per Origin AS): 379667 Deaggregation factor: 2.60 Unique aggregates announced (without unneeded subnets): 482553 Number of IPv4 prefixes with a valid ROA: 548869 Number of IPv4 prefixes with an invalid ROA: 195 Number of IPv4 prefixes with no ROA: 436190 Total ASes present in the Internet Routing Table: 76912 Prefixes per ASN: 12.81 Origin-only ASes present in the Internet Routing Table: 65888 Origin ASes announcing only one prefix: 26969 Transit ASes present in the Internet Routing Table: 11024 Transit-only ASes present in the Internet Routing Table: 551 Paths with bogon ASNs present in the IPv4 Routing Table: 308 Average AS path length visible in the Internet Routing Table: 5.4 Max AS path length visible: 109 Max AS path prepend of ASN (150261) 100 Prefixes from unregistered ASNs in the Routing Table: 1148 Number of instances of unregistered ASNs: 1154 Number of 32-bit ASNs allocated by the RIRs: 46543 Number of 32-bit ASNs visible in the Routing Table: 38288 Prefixes from 32-bit ASNs in the Routing Table: 203729 Number of bogon 32-bit ASNs visible in the Routing Table: 36 Special use prefixes present in the Routing Table: 1 Prefixes being announced from unallocated address space: 458 Number of addresses announced to Internet: 3109538816 Equivalent to 185 /8s, 87 /16s and 204 /24s Percentage of available address space announced: 84.0 Percentage of allocated address space announced: 84.0 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: 322110 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 258175 Total APNIC prefixes after maximum aggregation: 77103 APNIC Deaggregation factor: 3.35 Prefixes being announced from the APNIC address blocks: 249293 Unique aggregates announced from the APNIC address blocks: 104163 APNIC Region origin ASes present in the Internet Routing Table: 14586 APNIC Prefixes per ASN: 17.09 APNIC Region origin ASes announcing only one prefix: 4456 APNIC Region transit ASes present in the Internet Routing Table: 1961 Average APNIC Region AS path length visible: 5.3 Max APNIC Region AS path length visible: 109 Number of APNIC region 32-bit ASNs visible in the Routing Table: 10110 Number of APNIC addresses announced to Internet: 747811840 Equivalent to 44 /8s, 146 /16s and 180 /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: 291744 Total ARIN prefixes after maximum aggregation: 131161 ARIN Deaggregation factor: 2.22 Prefixes being announced from the ARIN address blocks: 292412 Unique aggregates announced from the ARIN address blocks: 139395 ARIN Region origin ASes present in the Internet Routing Table: 19240 ARIN Prefixes per ASN: 15.20 ARIN Region origin ASes announcing only one prefix: 7054 ARIN Region transit ASes present in the Internet Routing Table: 1984 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: 5222 Number of ARIN addresses announced to Internet: 1352619776 Equivalent to 80 /8s, 159 /16s and 87 /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: 274718 Total RIPE prefixes after maximum aggregation: 134473 RIPE Deaggregation factor: 2.04 Prefixes being announced from the RIPE address blocks: 273056 Unique aggregates announced from the RIPE address blocks: 175130 RIPE Region origin ASes present in the Internet Routing Table: 28934 RIPE Prefixes per ASN: 9.44 RIPE Region origin ASes announcing only one prefix: 12079 RIPE Region transit ASes present in the Internet Routing Table: 3990 Average RIPE Region AS path length visible: 5.4 Max RIPE Region AS path length visible: 30 Number of RIPE region 32-bit ASNs visible in the Routing Table: 12459 Number of RIPE addresses announced to Internet: 731693824 Equivalent to 43 /8s, 156 /16s and 195 /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: 123872 Total LACNIC prefixes after maximum aggregation: 29518 LACNIC Deaggregation factor: 4.20 Prefixes being announced from the LACNIC address blocks: 120239 Unique aggregates announced from the LACNIC address blocks: 48995 LACNIC Region origin ASes present in the Internet Routing Table: 11264 LACNIC Prefixes per ASN: 10.67 LACNIC Region origin ASes announcing only one prefix: 2685 LACNIC Region transit ASes present in the Internet Routing Table: 2523 Average LACNIC Region AS path length visible: 6.0 Max LACNIC Region AS path length visible: 32 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 9217 Number of LACNIC addresses announced to Internet: 171944704 Equivalent to 10 /8s, 63 /16s and 171 /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: 35597 Total AfriNIC prefixes after maximum aggregation: 6689 AfriNIC Deaggregation factor: 5.32 Prefixes being announced from the AfriNIC address blocks: 49795 Unique aggregates announced from the AfriNIC address blocks: 14462 AfriNIC Region origin ASes present in the Internet Routing Table: 1915 AfriNIC Prefixes per ASN: 26.00 AfriNIC Region origin ASes announcing only one prefix: 695 AfriNIC Region transit ASes present in the Internet Routing Table: 371 Average AfriNIC Region AS path length visible: 6.1 Max AfriNIC Region AS path length visible: 70 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 1280 Number of AfriNIC addresses announced to Internet: 105265152 Equivalent to 6 /8s, 70 /16s and 56 /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 11067 8756 97 CHINAMOBILE-CN China Mobile Communication 7545 6179 844 651 TPG-INTERNET-AP TPG Telecom Limited, AU 18403 4396 347 25 FPT-AS-AP FPT Telecom Company, VN 9498 4294 533 301 BBIL-AP BHARTI Airtel Ltd., IN 7552 3923 1332 26 VIETEL-AS-AP Viettel Group, VN 7713 3694 1044 66 TELKOMNET-AS-AP PT Telekomunikasi Indones 45899 3268 1869 101 VNPT-AS-VN VNPT Corp, VN 24560 2878 854 528 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd., 45090 2173 1439 86 TENCENT-NET-AP Shenzhen Tencent Computer 4755 2166 434 193 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 13579 40828 5186 AMAZON-02, US 11492 4735 314 586 CABLEONE, US 7155 3864 286 85 VIASAT-SP-BACKBONE, US 6327 3630 1320 81 SHAW, CA 22773 3620 3054 214 ASN-CXA-ALL-CCI-22773-RDC, US 174 3442 8747 896 COGENT-174, US 749 3230 54783 2481 DNIC-AS-00749, US 396982 3174 3853 419 GOOGLE-CLOUD-PLATFORM, US 16625 3149 1315 2265 AKAMAI-AS, US 36352 2817 230 853 AS-COLOCROSSING, 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 7721 1714 148 UNI2-AS, ES 39891 4798 293 63 ALJAWWALSTC-AS, SA 20940 4068 3395 127 AKAMAI-ASN1, NL 9009 3902 356 2074 M247, RO 12389 3073 2306 888 ROSTELECOM-AS PJSC Rostelecom. Technical 34984 2391 360 580 TELLCOM-AS, TR 212238 2220 161 1634 CDNEXT, GB 8452 1633 1852 14 TE-AS TE-AS, EG 13188 1606 100 34 TRIOLAN, UA 62240 1425 95 740 CLOUVIDER Clouvider - Global ASN, GB 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 12170 3253 582 UNINET, MX 10620 3499 480 1017 Telmex Colombia S.A., CO 13999 2513 540 362 Mega Cable, S.A. de C.V., MX 11830 1991 369 64 Instituto Costarricense de Electricidad y 28573 1361 2438 262 Claro NXT Telecomunicacoes Ltda, BR 3816 1338 785 210 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC, 6147 1198 371 22 Telefonica del Peru S.A.A., PE 11664 1190 278 33 Techtel LMDS Comunicaciones Interactivas 22884 1062 70 379 TOTAL PLAY TELECOMUNICACIONES SA DE CV, M 26615 1035 2503 52 TIM SA, BR 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 1780 644 27 RAYA-AS, EG 24863 1652 389 17 LINKdotNET-AS, EG 29571 1610 102 33 ORANGE-COTE-IVOIRE, CI 36992 1431 1519 280 ETISALAT-MISR, EG 36903 1248 553 101 MT-MPLS, MA 37069 1107 1100 18 MOBINIL, EG 36935 1054 523 47 Vodafone-, EG 20011 980 185 285 INTERNET-SOLUTIONS, ZA 36914 558 82 3 KENET-AS, KE 15399 532 56 54 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 13579 40828 5186 AMAZON-02, US 8151 12170 3253 582 UNINET, MX 9808 11067 8756 97 CHINAMOBILE-CN China Mobile Communication 12479 7721 1714 148 UNI2-AS, ES 7545 6179 844 651 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4798 293 63 ALJAWWALSTC-AS, SA 11492 4735 314 586 CABLEONE, US 18403 4396 347 25 FPT-AS-AP FPT Telecom Company, VN 9498 4294 533 301 BBIL-AP BHARTI Airtel Ltd., IN 20940 4068 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 8151 12170 11588 UNINET, MX 9808 11067 10970 CHINAMOBILE-CN China Mobile Communications Grou 12479 7721 7573 UNI2-AS, ES 7545 6179 5528 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4798 4735 ALJAWWALSTC-AS, SA 18403 4396 4371 FPT-AS-AP FPT Telecom Company, VN 11492 4735 4149 CABLEONE, US 9498 4294 3993 BBIL-AP BHARTI Airtel Ltd., IN 20940 4068 3941 AKAMAI-ASN1, NL 7552 3923 3897 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 22542 UNALLOCATED 8.7.205.0/24 3356 LEVEL3, US 33123 UNALLOCATED 8.10.69.0/24 174 COGENT-174, US 12169 UNALLOCATED 8.15.207.0/24 32787 PROLEXIC-TECHNOLOGIES-D 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 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 Complete listing at https://bgp.nsrc.org/REN/USP/data-badAS Prefixes from the Special Purpose Address Registry (Global) ----------------------------------------------------------- Prefix Origin AS Description 192.88.99.0/24 6939 HURRICANE, US Complete listing at https://bgp.nsrc.org/REN/USP/data-spar 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: 6939 HURRICANE, 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 23.147.240.0/24 Origin: 32302 RESERVED, ZZ 23.147.240.0/24 Transit: 32787 PROLEXIC-TECHNOLOGIES-DDOS-MITIGATION-NE 23.152.48.0/24 Origin: 46167 RESERVED, ZZ 23.152.48.0/24 Transit: 7018 ATT-INTERNET4, US 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 /9:16 /10:41 /11:92 /12:299 /13:583 /14:1221 /15:2165 /16:13903 /17:8262 /18:13703 /19:24634 /20:44015 /21:51733 /22:112014 /23:102466 /24:610090 /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 12479 6636 7721 UNI2-AS, ES 8151 6363 12170 UNINET, MX 11492 3532 4735 CABLEONE, US 39891 3489 4798 ALJAWWALSTC-AS, SA 6327 3426 3630 SHAW, CA 7155 2823 3864 VIASAT-SP-BACKBONE, US 22773 2744 3620 ASN-CXA-ALL-CCI-22773-RDC, US 16509 2377 13579 AMAZON-02, US 30036 2240 2582 MEDIACOM-ENTERPRISE-BUSINESS, US 10620 2186 3499 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) ---------------------------------------------- 1:2370 2:1525 3:799 4:9 5:4695 6:162 7:6 8:1575 9:1 11:172 12:1361 13:439 14:2520 15:359 16:285 17:376 18:919 20:542 21:4 22:188 23:7590 24:2808 25:2 27:2786 29:19 31:3285 32:36 33:1 34:80 35:214 36:3017 37:4626 38:9177 39:908 40:170 41:4230 42:1963 43:2600 44:383 45:18557 46:5099 47:318 49:1938 50:1887 51:591 52:1569 54:321 55:1097 56:11 57:263 58:2218 59:1222 60:1168 61:2794 62:2930 63:1804 64:5469 65:2065 66:4672 67:3066 68:1162 69:3942 70:1140 71:638 72:2863 74:2789 75:1519 76:615 77:2701 78:1909 79:1692 80:2204 81:2074 82:3111 83:1452 84:1862 85:3434 86:1065 87:2137 88:1322 89:4393 90:776 91:8377 92:2713 93:2916 94:4051 95:4356 96:1461 97:312 98:1019 99:689 100:72 101:1413 102:3868 103:32195 104:5064 105:765 106:1034 107:2673 108:1249 109:4051 110:2238 111:3279 112:2113 113:1803 114:1975 115:2188 116:2047 117:2578 118:2876 119:1912 120:1966 121:1379 122:2764 123:2193 124:1580 125:2860 126:91 128:1623 129:961 130:1316 131:1990 132:783 133:449 134:1543 135:333 136:1353 137:1264 138:2885 139:1596 140:1596 141:1505 142:1905 143:1794 144:1136 145:510 146:2189 147:2109 148:2684 149:2884 150:1244 151:1940 152:2089 153:569 154:7996 155:1989 156:3279 157:1912 158:1326 159:2480 160:3840 161:1849 162:3780 163:2185 164:1728 165:2218 166:1492 167:1931 168:4314 169:796 170:5089 171:1012 172:4454 173:3308 174:924 175:1300 176:3699 177:4673 178:3648 179:2301 180:2629 181:4078 182:3444 183:2023 184:2120 185:21601 186:5151 187:4483 188:4237 189:4275 190:9549 191:1470 192:11304 193:9474 194:7790 195:5537 196:3273 197:3656 198:6119 199:8512 200:8197 201:6341 202:10273 203:10641 204:4547 205:3596 206:4501 207:3498 208:4251 209:5119 210:4610 211:2534 212:4561 213:3735 214:1030 215:48 216:6760 217:3127 218:1349 219:379 220:2081 221:1106 222:723 223:2404 End of report