IPv4 R&E Routing Table Report 21:10 GMT Mon 19 May, 2025 IPv4 BGP Table (Global) as seen at AARNET (Brisbane). Report Website: https://bgp.nsrc.org/REN Detailed Analysis: https://bgp.nsrc.org/REN/AARNET/ Analysis Summary ---------------- BGP routing table entries examined: 984150 Prefixes after maximum aggregation (per Origin AS): 379129 Deaggregation factor: 2.60 Unique aggregates announced (without unneeded subnets): 479557 Number of IPv4 prefixes with a valid ROA: 546298 Number of IPv4 prefixes with an invalid ROA: 145 Number of IPv4 prefixes with no ROA: 437704 Total ASes present in the Internet Routing Table: 76803 Prefixes per ASN: 12.81 Origin-only ASes present in the Internet Routing Table: 65800 Origin ASes announcing only one prefix: 26943 Transit ASes present in the Internet Routing Table: 11003 Transit-only ASes present in the Internet Routing Table: 547 Paths with bogon ASNs present in the IPv4 Routing Table: 20 Average AS path length visible in the Internet Routing Table: 4.4 Max AS path length visible: 101 Max AS path prepend of ASN ( 37447) 98 Prefixes from unregistered ASNs in the Routing Table: 998 Number of instances of unregistered ASNs: 1004 Number of 32-bit ASNs allocated by the RIRs: 46452 Number of 32-bit ASNs visible in the Routing Table: 38219 Prefixes from 32-bit ASNs in the Routing Table: 202815 Number of bogon 32-bit ASNs visible in the Routing Table: 29 Special use prefixes present in the Routing Table: 1 Prefixes being announced from unallocated address space: 454 Number of addresses announced to Internet: 3109408768 Equivalent to 185 /8s, 85 /16s and 208 /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: 321742 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 257857 Total APNIC prefixes after maximum aggregation: 77140 APNIC Deaggregation factor: 3.34 Prefixes being announced from the APNIC address blocks: 249001 Unique aggregates announced from the APNIC address blocks: 103117 APNIC Region origin ASes present in the Internet Routing Table: 14605 APNIC Prefixes per ASN: 17.05 APNIC Region origin ASes announcing only one prefix: 4452 APNIC Region transit ASes present in the Internet Routing Table: 1964 Average APNIC Region AS path length visible: 4.3 Max APNIC Region AS path length visible: 35 Number of APNIC region 32-bit ASNs visible in the Routing Table: 10120 Number of APNIC addresses announced to Internet: 748506880 Equivalent to 44 /8s, 157 /16s and 79 /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: 291220 Total ARIN prefixes after maximum aggregation: 130869 ARIN Deaggregation factor: 2.23 Prefixes being announced from the ARIN address blocks: 292472 Unique aggregates announced from the ARIN address blocks: 138764 ARIN Region origin ASes present in the Internet Routing Table: 19247 ARIN Prefixes per ASN: 15.20 ARIN Region origin ASes announcing only one prefix: 7055 ARIN Region transit ASes present in the Internet Routing Table: 1990 Average ARIN Region AS path length visible: 4.0 Max ARIN Region AS path length visible: 34 Number of ARIN region 32-bit ASNs visible in the Routing Table: 5215 Number of ARIN addresses announced to Internet: 1352461312 Equivalent to 80 /8s, 156 /16s and 236 /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: 274100 Total RIPE prefixes after maximum aggregation: 134078 RIPE Deaggregation factor: 2.04 Prefixes being announced from the RIPE address blocks: 272210 Unique aggregates announced from the RIPE address blocks: 174485 RIPE Region origin ASes present in the Internet Routing Table: 28888 RIPE Prefixes per ASN: 9.42 RIPE Region origin ASes announcing only one prefix: 12048 RIPE Region transit ASes present in the Internet Routing Table: 3980 Average RIPE Region AS path length visible: 4.4 Max RIPE Region AS path length visible: 29 Number of RIPE region 32-bit ASNs visible in the Routing Table: 12428 Number of RIPE addresses announced to Internet: 731281664 Equivalent to 43 /8s, 150 /16s and 121 /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: 124348 Total LACNIC prefixes after maximum aggregation: 29624 LACNIC Deaggregation factor: 4.20 Prefixes being announced from the LACNIC address blocks: 119970 Unique aggregates announced from the LACNIC address blocks: 48892 LACNIC Region origin ASes present in the Internet Routing Table: 11233 LACNIC Prefixes per ASN: 10.68 LACNIC Region origin ASes announcing only one prefix: 2691 LACNIC Region transit ASes present in the Internet Routing Table: 2497 Average LACNIC Region AS path length visible: 5.0 Max LACNIC Region AS path length visible: 31 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 9179 Number of LACNIC addresses announced to Internet: 171750400 Equivalent to 10 /8s, 60 /16s and 180 /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: 35627 Total AfriNIC prefixes after maximum aggregation: 6790 AfriNIC Deaggregation factor: 5.25 Prefixes being announced from the AfriNIC address blocks: 50042 Unique aggregates announced from the AfriNIC address blocks: 13899 AfriNIC Region origin ASes present in the Internet Routing Table: 1911 AfriNIC Prefixes per ASN: 26.19 AfriNIC Region origin ASes announcing only one prefix: 697 AfriNIC Region transit ASes present in the Internet Routing Table: 376 Average AfriNIC Region AS path length visible: 5.1 Max AfriNIC Region AS path length visible: 101 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 1277 Number of AfriNIC addresses announced to Internet: 105188608 Equivalent to 6 /8s, 69 /16s and 13 /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 10994 8756 96 CHINAMOBILE-CN China Mobile Communication 7545 6172 842 654 TPG-INTERNET-AP TPG Telecom Limited, AU 18403 4494 347 25 FPT-AS-AP FPT Telecom Company, VN 9498 4285 534 301 BBIL-AP BHARTI Airtel Ltd., IN 7552 3908 1332 26 VIETEL-AS-AP Viettel Group, VN 7713 3692 1044 66 TELKOMNET-AS-AP PT Telekomunikasi Indones 45899 3265 1869 100 VNPT-AS-VN VNPT Corp, VN 24560 2864 852 535 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd., 45090 2173 1439 86 TENCENT-NET-AP Shenzhen Tencent Computer 4755 2165 434 193 TATACOMM-AS TATA Communications formerly Complete listing at https://bgp.nsrc.org/REN/AARNET/data-ASnet-APNIC ARIN Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 16509 13423 40826 5077 AMAZON-02, US 11492 4726 313 592 CABLEONE, US 7155 3864 286 85 VIASAT-SP-BACKBONE, US 6327 3621 1320 81 SHAW, CA 22773 3621 3053 213 ASN-CXA-ALL-CCI-22773-RDC, US 174 3469 8747 883 COGENT-174, US 749 3230 54783 2481 DNIC-AS-00749, US 396982 3164 3851 416 GOOGLE-CLOUD-PLATFORM, US 16625 3153 1320 2266 AKAMAI-AS, US 36352 2824 230 868 AS-COLOCROSSING, US Complete listing at https://bgp.nsrc.org/REN/AARNET/data-ASnet-ARIN RIPE Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 12479 7690 1714 148 UNI2-AS, ES 39891 4797 293 62 ALJAWWALSTC-AS, SA 20940 4070 3395 127 AKAMAI-ASN1, NL 9009 3805 328 1986 M247, RO 12389 3069 2304 886 ROSTELECOM-AS PJSC Rostelecom. Technical 34984 2391 360 581 TELLCOM-AS, TR 212238 2148 151 1580 CDNEXT, GB 8452 1628 1852 14 TE-AS TE-AS, EG 13188 1606 100 34 TRIOLAN, UA 62240 1422 94 737 CLOUVIDER Clouvider - Global ASN, GB Complete listing at https://bgp.nsrc.org/REN/AARNET/data-ASnet-RIPE LACNIC Region per AS prefix count summary ----------------------------------------- ASN No of nets /20 equiv MaxAgg Description 8151 12009 3248 588 UNINET, MX 10620 3499 480 1018 Telmex Colombia S.A., CO 13999 2520 540 364 Mega Cable, S.A. de C.V., MX 11830 1996 369 64 Instituto Costarricense de Electricidad y 28573 1352 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 22884 1061 70 380 TOTAL PLAY TELECOMUNICACIONES SA DE CV, M 262287 1049 83 227 Latitude.sh LTDA, BR 6503 1042 374 163 Axtel, S.A.B. de C.V., MX Complete listing at https://bgp.nsrc.org/REN/AARNET/data-ASnet-LACNIC AfriNIC Region per AS prefix count summary ------------------------------------------ ASN No of nets /20 equiv MaxAgg Description 24835 1778 632 28 RAYA-AS, EG 24863 1652 389 16 LINKdotNET-AS, EG 29571 1598 102 33 ORANGE-COTE-IVOIRE, CI 36992 1432 1519 280 ETISALAT-MISR, EG 36903 1250 554 97 MT-MPLS, MA 37069 1107 1100 18 MOBINIL, EG 36935 1036 523 46 Vodafone-, EG 20011 980 185 285 INTERNET-SOLUTIONS, ZA 36914 552 82 3 KENET-AS, KE 15399 532 56 54 WANANCHI-, KE Complete listing at https://bgp.nsrc.org/REN/AARNET/data-ASnet-AFRINIC Global Per AS prefix count summary ---------------------------------- ASN No of nets /20 equiv MaxAgg Description 16509 13423 40826 5077 AMAZON-02, US 8151 12009 3248 588 UNINET, MX 9808 10994 8756 96 CHINAMOBILE-CN China Mobile Communication 12479 7690 1714 148 UNI2-AS, ES 7545 6172 842 654 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4797 293 62 ALJAWWALSTC-AS, SA 11492 4726 313 592 CABLEONE, US 18403 4494 347 25 FPT-AS-AP FPT Telecom Company, VN 9498 4285 534 301 BBIL-AP BHARTI Airtel Ltd., IN 20940 4070 3395 127 AKAMAI-ASN1, NL Complete listing at https://bgp.nsrc.org/REN/AARNET/data-ASnet Global Per AS Maximum Aggregation summary ----------------------------------------- ASN No of nets Net Savings Description 8151 12009 11421 UNINET, MX 9808 10994 10898 CHINAMOBILE-CN China Mobile Communications Grou 12479 7690 7542 UNI2-AS, ES 7545 6172 5518 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4797 4735 ALJAWWALSTC-AS, SA 18403 4494 4469 FPT-AS-AP FPT Telecom Company, VN 11492 4726 4134 CABLEONE, US 9498 4285 3984 BBIL-AP BHARTI Airtel Ltd., IN 20940 4070 3943 AKAMAI-ASN1, NL 7552 3908 3882 VIETEL-AS-AP Viettel Group, VN Complete listing at https://bgp.nsrc.org/REN/AARNET/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/AARNET/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/AARNET/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 23.146.16.0/24 Origin: 396281 RESERVED, ZZ 23.146.16.0/24 Transit: 7018 ATT-INTERNET4, US 23.146.19.0/24 Origin: 396281 RESERVED, ZZ 23.146.19.0/24 Transit: 7018 ATT-INTERNET4, US Complete listing at https://bgp.nsrc.org/REN/AARNET/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 /14:1223 /15:2166 /16:13979 /17:8286 /18:13716 /19:24629 /20:43906 /21:51678 /22:111971 /23:102148 /24:609400 /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 6606 7690 UNI2-AS, ES 8151 6231 12009 UNINET, MX 11492 3532 4726 CABLEONE, US 39891 3489 4797 ALJAWWALSTC-AS, SA 6327 3417 3621 SHAW, CA 7155 2823 3864 VIASAT-SP-BACKBONE, US 22773 2747 3621 ASN-CXA-ALL-CCI-22773-RDC, US 16509 2329 13423 AMAZON-02, US 30036 2232 2573 MEDIACOM-ENTERPRISE-BUSINESS, US 10620 2185 3499 Telmex Colombia S.A., CO Complete listing at https://bgp.nsrc.org/REN/AARNET/data-sXXas-nos Number of /24s announced per /8 block (Global) ---------------------------------------------- 1:2351 2:1524 3:768 4:10 5:4699 6:163 7:6 8:1581 9:1 11:172 12:1365 13:415 14:2517 15:353 16:284 17:376 18:915 20:522 21:4 22:188 23:7584 24:2803 25:2 27:2779 29:19 31:3276 32:36 33:1 34:80 35:207 36:2894 37:4625 38:9146 39:910 40:169 41:4209 42:2028 43:2585 44:385 45:18539 46:5060 47:300 49:1933 50:1894 51:590 52:1557 54:309 55:1093 56:11 57:260 58:2221 59:1215 60:1167 61:2783 62:2928 63:1812 64:5481 65:2060 66:4664 67:3068 68:1157 69:3930 70:1127 71:636 72:2845 74:2783 75:1623 76:614 77:2706 78:1900 79:1752 80:2202 81:2074 82:3133 83:1431 84:1866 85:3428 86:1066 87:2161 88:1321 89:4375 90:775 91:8351 92:2689 93:2897 94:4053 95:4316 96:1461 97:312 98:1019 99:686 100:72 101:1152 102:3920 103:32222 104:5051 105:767 106:1033 107:2672 108:1217 109:4081 110:2242 111:3321 112:2072 113:1801 114:1969 115:2176 116:2044 117:2611 118:2888 119:1959 120:1925 121:1374 122:2763 123:2183 124:1590 125:2847 126:91 128:1624 129:959 130:1306 131:1973 132:778 133:451 134:1544 135:332 136:1351 137:1301 138:2890 139:1598 140:1589 141:1507 142:1899 143:1755 144:1095 145:504 146:2159 147:2111 148:2699 149:2868 150:1215 151:1912 152:2089 153:564 154:8123 155:1972 156:3321 157:1915 158:1321 159:2451 160:3828 161:1876 162:3753 163:2159 164:1697 165:2203 166:1480 167:1908 168:4291 169:794 170:5080 171:1008 172:4453 173:3291 174:924 175:1301 176:3697 177:4671 178:3627 179:2272 180:2621 181:4069 182:3438 183:2126 184:2114 185:21555 186:5162 187:4430 188:4247 189:4213 190:9543 191:1473 192:11263 193:9478 194:7773 195:5524 196:3294 197:3663 198:6189 199:8480 200:8196 201:6342 202:10291 203:10621 204:4567 205:3642 206:4519 207:3586 208:4279 209:5212 210:4592 211:2537 212:4547 213:3737 214:1029 215:48 216:6746 217:3141 218:1342 219:381 220:2088 221:1085 222:718 223:2381 End of report