IPv4 R&E Routing Table Report 21:10 GMT Thu 15 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: 983696 Prefixes after maximum aggregation (per Origin AS): 378894 Deaggregation factor: 2.60 Unique aggregates announced (without unneeded subnets): 479461 Number of IPv4 prefixes with a valid ROA: 545612 Number of IPv4 prefixes with an invalid ROA: 145 Number of IPv4 prefixes with no ROA: 437939 Total ASes present in the Internet Routing Table: 76814 Prefixes per ASN: 12.81 Origin-only ASes present in the Internet Routing Table: 65798 Origin ASes announcing only one prefix: 26945 Transit ASes present in the Internet Routing Table: 11016 Transit-only ASes present in the Internet Routing Table: 555 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: 155 Max AS path prepend of ASN (153737) 150 Prefixes from unregistered ASNs in the Routing Table: 991 Number of instances of unregistered ASNs: 997 Number of 32-bit ASNs allocated by the RIRs: 46405 Number of 32-bit ASNs visible in the Routing Table: 38220 Prefixes from 32-bit ASNs in the Routing Table: 202716 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: 490 Number of addresses announced to Internet: 3109011712 Equivalent to 185 /8s, 79 /16s and 193 /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: 321831 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 257601 Total APNIC prefixes after maximum aggregation: 77027 APNIC Deaggregation factor: 3.34 Prefixes being announced from the APNIC address blocks: 248713 Unique aggregates announced from the APNIC address blocks: 102999 APNIC Region origin ASes present in the Internet Routing Table: 14581 APNIC Prefixes per ASN: 17.06 APNIC Region origin ASes announcing only one prefix: 4440 APNIC Region transit ASes present in the Internet Routing Table: 1960 Average APNIC Region AS path length visible: 4.3 Max APNIC Region AS path length visible: 155 Number of APNIC region 32-bit ASNs visible in the Routing Table: 10102 Number of APNIC addresses announced to Internet: 748503808 Equivalent to 44 /8s, 157 /16s and 67 /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: 290962 Total ARIN prefixes after maximum aggregation: 130747 ARIN Deaggregation factor: 2.23 Prefixes being announced from the ARIN address blocks: 292273 Unique aggregates announced from the ARIN address blocks: 138796 ARIN Region origin ASes present in the Internet Routing Table: 19246 ARIN Prefixes per ASN: 15.19 ARIN Region origin ASes announcing only one prefix: 7053 ARIN Region transit ASes present in the Internet Routing Table: 1989 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: 5210 Number of ARIN addresses announced to Internet: 1352420608 Equivalent to 80 /8s, 156 /16s and 77 /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: 274046 Total RIPE prefixes after maximum aggregation: 134095 RIPE Deaggregation factor: 2.04 Prefixes being announced from the RIPE address blocks: 272116 Unique aggregates announced from the RIPE address blocks: 174454 RIPE Region origin ASes present in the Internet Routing Table: 28915 RIPE Prefixes per ASN: 9.41 RIPE Region origin ASes announcing only one prefix: 12062 RIPE Region transit ASes present in the Internet Routing Table: 3987 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: 12442 Number of RIPE addresses announced to Internet: 730912000 Equivalent to 43 /8s, 144 /16s and 213 /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: 124486 Total LACNIC prefixes after maximum aggregation: 29612 LACNIC Deaggregation factor: 4.20 Prefixes being announced from the LACNIC address blocks: 120150 Unique aggregates announced from the LACNIC address blocks: 48930 LACNIC Region origin ASes present in the Internet Routing Table: 11237 LACNIC Prefixes per ASN: 10.69 LACNIC Region origin ASes announcing only one prefix: 2694 LACNIC Region transit ASes present in the Internet Routing Table: 2500 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: 9187 Number of LACNIC addresses announced to Internet: 171734528 Equivalent to 10 /8s, 60 /16s and 118 /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: 35610 Total AfriNIC prefixes after maximum aggregation: 6792 AfriNIC Deaggregation factor: 5.24 Prefixes being announced from the AfriNIC address blocks: 49953 Unique aggregates announced from the AfriNIC address blocks: 13878 AfriNIC Region origin ASes present in the Internet Routing Table: 1911 AfriNIC Prefixes per ASN: 26.14 AfriNIC Region origin ASes announcing only one prefix: 696 AfriNIC Region transit ASes present in the Internet Routing Table: 377 Average AfriNIC Region AS path length visible: 5.1 Max AfriNIC Region AS path length visible: 60 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 1279 Number of AfriNIC addresses announced to Internet: 105211392 Equivalent to 6 /8s, 69 /16s and 102 /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 10989 8756 96 CHINAMOBILE-CN China Mobile Communication 7545 6166 842 654 TPG-INTERNET-AP TPG Telecom Limited, AU 18403 4387 347 25 FPT-AS-AP FPT Telecom Company, VN 9498 4278 533 300 BBIL-AP BHARTI Airtel Ltd., IN 7552 3896 1332 26 VIETEL-AS-AP Viettel Group, VN 7713 3690 1044 66 TELKOMNET-AS-AP PT Telekomunikasi Indones 45899 3264 1869 100 VNPT-AS-VN VNPT Corp, VN 24560 2865 852 534 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 13403 40829 4993 AMAZON-02, US 11492 4727 313 592 CABLEONE, US 7155 3864 286 85 VIASAT-SP-BACKBONE, US 6327 3621 1320 81 SHAW, CA 22773 3618 3053 213 ASN-CXA-ALL-CCI-22773-RDC, US 174 3462 8750 910 COGENT-174, US 749 3243 54815 2494 DNIC-AS-00749, US 396982 3166 3852 416 GOOGLE-CLOUD-PLATFORM, US 16625 3155 1320 2267 AKAMAI-AS, US 36352 2787 228 854 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 7693 1714 148 UNI2-AS, ES 39891 4797 293 62 ALJAWWALSTC-AS, SA 20940 4066 3395 127 AKAMAI-ASN1, NL 9009 3773 325 1957 M247, RO 12389 3069 2304 886 ROSTELECOM-AS PJSC Rostelecom. Technical 34984 2391 360 581 TELLCOM-AS, TR 212238 2141 150 1575 CDNEXT, GB 8452 1607 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 12102 3247 581 UNINET, MX 10620 3500 480 1019 Telmex Colombia S.A., CO 13999 2517 540 364 Mega Cable, S.A. de C.V., MX 11830 1996 369 64 Instituto Costarricense de Electricidad y 28573 1358 2438 262 Claro NXT Telecomunicacoes Ltda, BR 3816 1338 785 210 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC, 11664 1204 278 33 Techtel LMDS Comunicaciones Interactivas 6147 1197 371 22 Telefonica del Peru S.A.A., PE 22884 1059 70 380 TOTAL PLAY TELECOMUNICACIONES SA DE CV, M 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 1597 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 1040 523 45 Vodafone-, EG 20011 980 185 285 INTERNET-SOLUTIONS, ZA 36914 551 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 13403 40829 4993 AMAZON-02, US 8151 12102 3247 581 UNINET, MX 9808 10989 8756 96 CHINAMOBILE-CN China Mobile Communication 12479 7693 1714 148 UNI2-AS, ES 7545 6166 842 654 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4797 293 62 ALJAWWALSTC-AS, SA 11492 4727 313 592 CABLEONE, US 18403 4387 347 25 FPT-AS-AP FPT Telecom Company, VN 9498 4278 533 300 BBIL-AP BHARTI Airtel Ltd., IN 20940 4066 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 12102 11521 UNINET, MX 9808 10989 10893 CHINAMOBILE-CN China Mobile Communications Grou 12479 7693 7545 UNI2-AS, ES 7545 6166 5512 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4797 4735 ALJAWWALSTC-AS, SA 18403 4387 4362 FPT-AS-AP FPT Telecom Company, VN 11492 4727 4135 CABLEONE, US 9498 4278 3978 BBIL-AP BHARTI Airtel Ltd., IN 20940 4066 3939 AKAMAI-ASN1, NL 7552 3896 3870 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 23.147.240.0/24 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/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 /13:582 /14:1223 /15:2168 /16:13984 /17:8274 /18:13714 /19:24629 /20:43922 /21:51691 /22:111953 /23:102135 /24:608956 /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 6611 7693 UNI2-AS, ES 8151 6300 12102 UNINET, MX 11492 3533 4727 CABLEONE, US 39891 3489 4797 ALJAWWALSTC-AS, SA 6327 3417 3621 SHAW, CA 7155 2823 3864 VIASAT-SP-BACKBONE, US 22773 2744 3618 ASN-CXA-ALL-CCI-22773-RDC, US 16509 2334 13403 AMAZON-02, US 30036 2231 2572 MEDIACOM-ENTERPRISE-BUSINESS, US 10620 2186 3500 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) ---------------------------------------------- 1:2330 2:1532 3:736 4:11 5:4689 6:163 7:6 8:1583 9:1 11:172 12:1366 13:418 14:2519 15:353 16:284 17:373 18:919 20:518 21:4 22:188 23:7574 24:2801 25:2 27:2771 29:19 31:3265 32:36 33:1 34:80 35:207 36:2891 37:4636 38:9117 39:910 40:169 41:4209 42:1987 43:2581 44:385 45:18557 46:5060 47:301 49:1932 50:1896 51:590 52:1555 54:315 55:1094 56:11 57:258 58:2215 59:1215 60:1167 61:2777 62:2922 63:1816 64:5487 65:2062 66:4684 67:3070 68:1154 69:3937 70:1128 71:634 72:2845 74:2784 75:1623 76:614 77:2706 78:1896 79:1752 80:2200 81:2075 82:3135 83:1428 84:1864 85:3424 86:1068 87:2161 88:1322 89:4369 90:774 91:8345 92:2693 93:2899 94:4050 95:4320 96:1462 97:312 98:1020 99:686 100:72 101:1152 102:3921 103:32199 104:5040 105:763 106:1033 107:2666 108:1221 109:4077 110:2235 111:3319 112:2071 113:1785 114:1968 115:2172 116:2044 117:2657 118:2877 119:1954 120:1923 121:1374 122:2754 123:2174 124:1568 125:2845 126:91 128:1621 129:959 130:1304 131:1964 132:783 133:451 134:1542 135:332 136:1382 137:1305 138:2890 139:1597 140:1588 141:1506 142:1901 143:1749 144:1098 145:506 146:2168 147:2106 148:2684 149:2861 150:1211 151:1899 152:2087 153:564 154:8028 155:1961 156:3323 157:1900 158:1306 159:2451 160:3839 161:1881 162:3755 163:2146 164:1698 165:2200 166:1484 167:1906 168:4287 169:789 170:5085 171:1009 172:4480 173:3289 174:923 175:1302 176:3690 177:4679 178:3623 179:2267 180:2622 181:4071 182:3430 183:2118 184:2118 185:21575 186:5127 187:4437 188:4247 189:4262 190:9547 191:1468 192:11253 193:9494 194:7774 195:5512 196:3295 197:3645 198:6203 199:8460 200:8219 201:6341 202:10284 203:10616 204:4557 205:3568 206:4511 207:3584 208:4282 209:5200 210:4592 211:2541 212:4539 213:3731 214:1033 215:48 216:6733 217:3141 218:1342 219:382 220:2085 221:1086 222:718 223:2381 End of report