IPv4 R&E Routing Table Report 21:10 GMT Wed 23 Jul, 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: 990101 Prefixes after maximum aggregation (per Origin AS): 383312 Deaggregation factor: 2.58 Unique aggregates announced (without unneeded subnets): 487279 Number of IPv4 prefixes with a valid ROA: 556545 Number of IPv4 prefixes with an invalid ROA: 136 Number of IPv4 prefixes with no ROA: 433420 Total ASes present in the Internet Routing Table: 77023 Prefixes per ASN: 12.85 Origin-only ASes present in the Internet Routing Table: 65962 Origin ASes announcing only one prefix: 26939 Transit ASes present in the Internet Routing Table: 11061 Transit-only ASes present in the Internet Routing Table: 559 Paths with bogon ASNs present in the IPv4 Routing Table: 29 Average AS path length visible in the Internet Routing Table: 4.4 Max AS path length visible: 52 Max AS path prepend of ASN ( 37447) 34 Prefixes from unregistered ASNs in the Routing Table: 1134 Number of instances of unregistered ASNs: 1172 Number of 32-bit ASNs allocated by the RIRs: 46887 Number of 32-bit ASNs visible in the Routing Table: 38612 Prefixes from 32-bit ASNs in the Routing Table: 205885 Number of bogon 32-bit ASNs visible in the Routing Table: 103 Special use prefixes present in the Routing Table: 1 Prefixes being announced from unallocated address space: 476 Number of addresses announced to Internet: 3107176960 Equivalent to 185 /8s, 51 /16s and 194 /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: 323008 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 261881 Total APNIC prefixes after maximum aggregation: 77869 APNIC Deaggregation factor: 3.36 Prefixes being announced from the APNIC address blocks: 252795 Unique aggregates announced from the APNIC address blocks: 104980 APNIC Region origin ASes present in the Internet Routing Table: 14707 APNIC Prefixes per ASN: 17.19 APNIC Region origin ASes announcing only one prefix: 4500 APNIC Region transit ASes present in the Internet Routing Table: 1983 Average APNIC Region AS path length visible: 4.2 Max APNIC Region AS path length visible: 34 Number of APNIC region 32-bit ASNs visible in the Routing Table: 10247 Number of APNIC addresses announced to Internet: 749216768 Equivalent to 44 /8s, 168 /16s and 36 /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: 291527 Total ARIN prefixes after maximum aggregation: 132083 ARIN Deaggregation factor: 2.21 Prefixes being announced from the ARIN address blocks: 293347 Unique aggregates announced from the ARIN address blocks: 141370 ARIN Region origin ASes present in the Internet Routing Table: 19238 ARIN Prefixes per ASN: 15.25 ARIN Region origin ASes announcing only one prefix: 7038 ARIN Region transit ASes present in the Internet Routing Table: 1994 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: 5265 Number of ARIN addresses announced to Internet: 1349376768 Equivalent to 80 /8s, 109 /16s and 219 /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: 276506 Total RIPE prefixes after maximum aggregation: 136076 RIPE Deaggregation factor: 2.03 Prefixes being announced from the RIPE address blocks: 275435 Unique aggregates announced from the RIPE address blocks: 177432 RIPE Region origin ASes present in the Internet Routing Table: 28937 RIPE Prefixes per ASN: 9.52 RIPE Region origin ASes announcing only one prefix: 12049 RIPE Region transit ASes present in the Internet Routing Table: 3989 Average RIPE Region AS path length visible: 4.5 Max RIPE Region AS path length visible: 29 Number of RIPE region 32-bit ASNs visible in the Routing Table: 12568 Number of RIPE addresses announced to Internet: 732134400 Equivalent to 43 /8s, 163 /16s and 124 /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: 124404 Total LACNIC prefixes after maximum aggregation: 29747 LACNIC Deaggregation factor: 4.18 Prefixes being announced from the LACNIC address blocks: 120693 Unique aggregates announced from the LACNIC address blocks: 49161 LACNIC Region origin ASes present in the Internet Routing Table: 11266 LACNIC Prefixes per ASN: 10.71 LACNIC Region origin ASes announcing only one prefix: 2653 LACNIC Region transit ASes present in the Internet Routing Table: 2523 Average LACNIC Region AS path length visible: 5.1 Max LACNIC Region AS path length visible: 36 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 9232 Number of LACNIC addresses announced to Internet: 171100928 Equivalent to 10 /8s, 50 /16s and 203 /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: 34649 Total AfriNIC prefixes after maximum aggregation: 6780 AfriNIC Deaggregation factor: 5.11 Prefixes being announced from the AfriNIC address blocks: 47354 Unique aggregates announced from the AfriNIC address blocks: 13945 AfriNIC Region origin ASes present in the Internet Routing Table: 1933 AfriNIC Prefixes per ASN: 24.50 AfriNIC Region origin ASes announcing only one prefix: 699 AfriNIC Region transit ASes present in the Internet Routing Table: 383 Average AfriNIC Region AS path length visible: 5.1 Max AfriNIC Region AS path length visible: 37 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 1300 Number of AfriNIC addresses announced to Internet: 105087232 Equivalent to 6 /8s, 67 /16s and 129 /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 11989 8762 117 CHINAMOBILE-CN China Mobile Communication 7545 6139 840 620 TPG-INTERNET-AP TPG Telecom Limited, AU 18403 4497 347 25 FPT-AS-AP FPT Telecom Company, VN 9498 4463 535 311 BBIL-AP BHARTI Airtel Ltd., IN 7552 3915 1332 27 VIETEL-AS-AP Viettel Group, VN 7713 3700 1044 66 TELKOMNET-AS-AP PT Telekomunikasi Indones 45899 3280 1868 100 VNPT-AS-VN VNPT Corp, VN 24560 2910 863 508 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd., 56046 2814 811 177 CMNET-JIANGSU-AP China Mobile communicati 4755 2178 429 188 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 13672 40974 5278 AMAZON-02, US 11492 4813 319 611 CABLEONE, US 7155 3855 286 85 VIASAT-SP-BACKBONE, US 6327 3636 1320 82 SHAW, CA 174 3455 8771 858 COGENT-174, US 22773 3341 3031 166 ASN-CXA-ALL-CCI-22773-RDC, US 749 3223 54766 2474 DNIC-AS-00749, US 396982 3197 3856 433 GOOGLE-CLOUD-PLATFORM, US 16625 3063 1297 2223 AKAMAI-AS, US 4155 2874 218 1728 USDA-1, 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 7594 1712 148 UNI2-AS, ES 39891 4798 293 63 ALJAWWALSTC-AS, SA 20940 4035 3395 127 AKAMAI-ASN1, NL 9009 3786 361 2107 M247, RO 12389 3120 2317 873 ROSTELECOM-AS PJSC Rostelecom. Technical 34984 2404 361 584 TELLCOM-AS, TR 212238 2318 163 1686 CDNEXT, GB 13188 1606 100 34 TRIOLAN, UA 8452 1588 1852 14 TE-AS TE-AS, EG 203020 1476 163 649 HOSTROYALE, IN 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 12302 3259 577 UNINET, MX 10620 3485 474 1025 Telmex Colombia S.A., CO 13999 2524 511 349 Mega Cable, S.A. de C.V., MX 11830 1987 369 64 Instituto Costarricense de Electricidad y 28573 1371 2435 268 Claro NXT Telecomunicacoes Ltda, BR 3816 1346 787 205 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC, 11664 1205 278 33 Techtel LMDS Comunicaciones Interactivas 6147 1196 371 22 Telefonica del Peru S.A.A., PE 22884 1068 71 370 TOTAL PLAY TELECOMUNICACIONES SA DE CV, M 6503 1020 373 162 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 1728 660 28 RAYA-AS, EG 29571 1607 102 33 ORANGE-COTE-IVOIRE, CI 36992 1312 1489 356 ETISALAT-MISR, EG 36903 1249 554 96 MT-MPLS, MA 24863 1227 389 20 LINKdotNET-AS, EG 37069 1086 1112 11 MOBINIL, EG 36935 832 520 43 Vodafone-, EG 36914 581 82 3 KENET-AS, KE 20011 568 154 212 INTERNET-SOLUTIONS, ZA 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 13672 40974 5278 AMAZON-02, US 8151 12302 3259 577 UNINET, MX 9808 11989 8762 117 CHINAMOBILE-CN China Mobile Communication 12479 7594 1712 148 UNI2-AS, ES 7545 6139 840 620 TPG-INTERNET-AP TPG Telecom Limited, AU 11492 4813 319 611 CABLEONE, US 39891 4798 293 63 ALJAWWALSTC-AS, SA 18403 4497 347 25 FPT-AS-AP FPT Telecom Company, VN 9498 4463 535 311 BBIL-AP BHARTI Airtel Ltd., IN 20940 4035 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 9808 11989 11872 CHINAMOBILE-CN China Mobile Communications Grou 8151 12302 11725 UNINET, MX 12479 7594 7446 UNI2-AS, ES 7545 6139 5519 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4798 4735 ALJAWWALSTC-AS, SA 18403 4497 4472 FPT-AS-AP FPT Telecom Company, VN 11492 4813 4202 CABLEONE, US 9498 4463 4152 BBIL-AP BHARTI Airtel Ltd., IN 20940 4035 3908 AKAMAI-ASN1, NL 7552 3915 3888 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 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 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: 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 23.147.224.0/24 Origin: 27392 639-DATACENTERS, US 23.147.224.0/24 Transit: 3356 LEVEL3, 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 /9:14 /10:41 /11:92 /12:298 /13:582 /14:1210 /15:2150 /16:13792 /17:8224 /18:13505 /19:24551 /20:43921 /21:51709 /22:111882 /23:102868 /24:615245 /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 6542 7594 UNI2-AS, ES 8151 6524 12302 UNINET, MX 11492 3606 4813 CABLEONE, US 39891 3489 4798 ALJAWWALSTC-AS, SA 6327 3433 3636 SHAW, CA 7155 2814 3855 VIASAT-SP-BACKBONE, US 22773 2493 3341 ASN-CXA-ALL-CCI-22773-RDC, US 16509 2355 13672 AMAZON-02, US 30036 2277 2618 MEDIACOM-ENTERPRISE-BUSINESS, US 10620 2196 3485 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) ---------------------------------------------- 1:2405 2:1521 3:857 4:10 5:4755 6:163 7:6 8:1554 9:1 11:172 12:1340 13:463 14:2570 15:365 16:286 17:377 18:896 20:558 21:4 22:188 23:7743 24:2736 25:2 27:2801 29:19 31:3344 32:35 33:1 34:80 35:260 36:3765 37:4560 38:9462 39:926 40:251 41:4248 42:1989 43:2684 44:378 45:18559 46:5098 47:336 49:1877 50:2010 51:591 52:1550 54:323 55:1106 56:11 57:274 58:2175 59:1293 60:1171 61:2795 62:2977 63:1798 64:5542 65:2160 66:4722 67:3107 68:1071 69:3904 70:1037 71:628 72:2852 74:2796 75:1508 76:606 77:2761 78:1920 79:1691 80:2204 81:2043 82:3181 83:1436 84:1893 85:3470 86:1085 87:2132 88:1346 89:4418 90:777 91:8413 92:2710 93:2952 94:4062 95:4422 96:1470 97:309 98:955 99:695 100:71 101:1188 102:3890 103:32241 104:5220 105:801 106:972 107:2655 108:1261 109:4184 110:2229 111:3326 112:2280 113:1842 114:1968 115:2258 116:2056 117:2614 118:2988 119:1895 120:2139 121:1332 122:2793 123:2243 124:1654 125:2867 126:91 128:1620 129:964 130:1311 131:2048 132:778 133:450 134:1645 135:350 136:1447 137:1317 138:2822 139:1585 140:1634 141:1504 142:1909 143:1935 144:1172 145:564 146:2180 147:2098 148:2712 149:2936 150:1265 151:2222 152:2071 153:590 154:7597 155:1852 156:3086 157:1942 158:1350 159:2520 160:3604 161:1901 162:3856 163:2252 164:1870 165:2376 166:1523 167:2020 168:3974 169:789 170:5123 171:999 172:4243 173:3394 174:917 175:1326 176:3740 177:4694 178:3932 179:2273 180:2580 181:4125 182:3516 183:2168 184:2081 185:21580 186:5221 187:4646 188:4264 189:4352 190:9552 191:1490 192:11356 193:9475 194:7742 195:5582 196:3285 197:3190 198:6224 199:8611 200:8214 201:6383 202:10383 203:10683 204:4674 205:3641 206:4532 207:3640 208:4296 209:5180 210:4650 211:2593 212:4552 213:3821 214:1020 215:48 216:6765 217:3226 218:1373 219:394 220:2145 221:1199 222:744 223:2712 End of report