IPv4 R&E Routing Table Report 21:10 GMT Sat 10 Oct, 2026 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: 1072635 Prefixes after maximum aggregation (per Origin AS): 415160 Deaggregation factor: 2.58 Unique aggregates announced (without unneeded subnets): 536039 Number of IPv4 prefixes with a valid ROA: 754746 Number of IPv4 prefixes with an invalid ROA: 125 Number of IPv4 prefixes with no ROA: 317764 Total ASes present in the Internet Routing Table: 79425 Prefixes per ASN: 13.51 Origin-only ASes present in the Internet Routing Table: 68000 Origin ASes announcing only one prefix: 27896 Transit ASes present in the Internet Routing Table: 11425 Transit-only ASes present in the Internet Routing Table: 625 Paths with bogon ASNs present in the IPv4 Routing Table: 13 Average AS path length visible in the Internet Routing Table: 4.4 Max AS path length visible: 92 Max AS path prepend of ASN (152107) 90 Prefixes from unregistered ASNs in the Routing Table: 1112 Number of instances of unregistered ASNs: 1135 Number of 32-bit ASNs allocated by the RIRs: 51623 Number of 32-bit ASNs visible in the Routing Table: 41874 Prefixes from 32-bit ASNs in the Routing Table: 242881 Number of bogon 32-bit ASNs visible in the Routing Table: 50 Special use prefixes present in the Routing Table: 0 Prefixes being announced from unallocated address space: 598 Number of addresses announced to Internet: 3125758720 Equivalent to 186 /8s, 79 /16s and 75 /24s Percentage of available address space announced: 84.4 Percentage of allocated address space announced: 84.4 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: 355004 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 284798 Total APNIC prefixes after maximum aggregation: 85557 APNIC Deaggregation factor: 3.33 Prefixes being announced from the APNIC address blocks: 272657 Unique aggregates announced from the APNIC address blocks: 110851 APNIC Region origin ASes present in the Internet Routing Table: 15394 APNIC Prefixes per ASN: 17.71 APNIC Region origin ASes announcing only one prefix: 4785 APNIC Region transit ASes present in the Internet Routing Table: 2041 Average APNIC Region AS path length visible: 4.3 Max APNIC Region AS path length visible: 92 Number of APNIC region 32-bit ASNs visible in the Routing Table: 11001 Number of APNIC addresses announced to Internet: 748906496 Equivalent to 44 /8s, 163 /16s and 104 /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: 316141 Total ARIN prefixes after maximum aggregation: 140421 ARIN Deaggregation factor: 2.25 Prefixes being announced from the ARIN address blocks: 313067 Unique aggregates announced from the ARIN address blocks: 153413 ARIN Region origin ASes present in the Internet Routing Table: 19525 ARIN Prefixes per ASN: 16.03 ARIN Region origin ASes announcing only one prefix: 7207 ARIN Region transit ASes present in the Internet Routing Table: 1994 Average ARIN Region AS path length visible: 3.9 Max ARIN Region AS path length visible: 45 Number of ARIN region 32-bit ASNs visible in the Routing Table: 5835 Number of ARIN addresses announced to Internet: 1354967040 Equivalent to 80 /8s, 195 /16s and 40 /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, 393216-404380 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: 300057 Total RIPE prefixes after maximum aggregation: 149604 RIPE Deaggregation factor: 2.01 Prefixes being announced from the RIPE address blocks: 306389 Unique aggregates announced from the RIPE address blocks: 201062 RIPE Region origin ASes present in the Internet Routing Table: 29901 RIPE Prefixes per ASN: 10.25 RIPE Region origin ASes announcing only one prefix: 12367 RIPE Region transit ASes present in the Internet Routing Table: 4152 Average RIPE Region AS path length visible: 4.5 Max RIPE Region AS path length visible: 48 Number of RIPE region 32-bit ASNs visible in the Routing Table: 13979 Number of RIPE addresses announced to Internet: 750473216 Equivalent to 44 /8s, 187 /16s and 80 /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 196608-219547 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: 132026 Total LACNIC prefixes after maximum aggregation: 31803 LACNIC Deaggregation factor: 4.15 Prefixes being announced from the LACNIC address blocks: 125646 Unique aggregates announced from the LACNIC address blocks: 51550 LACNIC Region origin ASes present in the Internet Routing Table: 11528 LACNIC Prefixes per ASN: 10.90 LACNIC Region origin ASes announcing only one prefix: 2766 LACNIC Region transit ASes present in the Internet Routing Table: 2647 Average LACNIC Region AS path length visible: 5.2 Max LACNIC Region AS path length visible: 38 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 9604 Number of LACNIC addresses announced to Internet: 167382528 Equivalent to 9 /8s, 250 /16s and 14 /24s LACNIC AS Blocks 26592-26623, 27648-28671, 52224-53247, 61440-61951, 64099-64197, 262144-275868 + 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: 38501 Total AfriNIC prefixes after maximum aggregation: 7101 AfriNIC Deaggregation factor: 5.42 Prefixes being announced from the AfriNIC address blocks: 54277 Unique aggregates announced from the AfriNIC address blocks: 18656 AfriNIC Region origin ASes present in the Internet Routing Table: 2093 AfriNIC Prefixes per ASN: 25.93 AfriNIC Region origin ASes announcing only one prefix: 771 AfriNIC Region transit ASes present in the Internet Routing Table: 388 Average AfriNIC Region AS path length visible: 5.2 Max AfriNIC Region AS path length visible: 53 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 1455 Number of AfriNIC addresses announced to Internet: 103721472 Equivalent to 6 /8s, 46 /16s and 170 /24s AfriNIC AS Blocks 36864-37887, 327680-330751 & 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 14023 8737 135 CHINAMOBILE-CN China Mobile Communication 9498 5102 560 328 BBIL-AP BHARTI Airtel Ltd., IN 7545 4642 833 276 TPG-INTERNET-AP TPG Telecom Limited, AU 7552 4082 1331 24 VIETEL-AS-AP Viettel Group, VN 56046 3622 886 179 CMNET-JIANGSU-AP China Mobile communicati 7713 3428 1043 69 TELKOMNET-AS-AP PT Telekomunikasi Indones 45899 3382 1868 97 VNPT-AS-VN VNPT Corp, VN 140292 3075 315 1815 CHINATELECOM-JIANGSU-SUZHOU-5G-NETWORK CH 24560 2384 538 663 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd., 4755 2266 428 193 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 18664 42595 5619 AMAZON-02 - Amazon.com, Inc., US 22773 4912 3307 455 ASN-CXA-ALL-CCI-22773-RDC - Cox Communica 11492 4630 307 1089 CABLEONE - CABLE ONE, INC., US 7155 4337 286 87 VIASAT-SP-BACKBONE - ViaSat,Inc., US 6327 3835 1305 72 SHAW - Shaw Communications, CA 396982 3546 5381 599 GOOGLE-CLOUD-PLATFORM - Google LLC, US 36352 3280 243 1161 AS-COLOCROSSING - HostPapa, US 749 3133 54647 2384 DNIC-AS-00749 - United States Department 7029 2894 2570 919 WINDSTREAM - Windstream Communications LL 31898 2819 1397 1180 ORACLE-BMC-31898 - Oracle Corporation, 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 6940 1709 149 UNI2-AS, ES 39891 4976 307 73 ALJAWWALSTC-AS, SA 9009 4374 390 2672 M247, RO 20940 3834 3388 106 AKAMAI-ASN1, NL 212238 3647 262 2770 CDNEXT, GB 12389 3103 2329 864 ROSTELECOM-AS PJSC Rostelecom. Technical 34984 2528 371 602 TELLCOM-AS, TR 29355 2523 155 28 KCELL-AS, KZ 3257 1741 2082 978 GTT-BACKBONE GTT, US 8452 1718 1852 14 TE-AS TE-AS, EG 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 13271 3296 616 UNINET, MX 10620 3399 442 1122 Telmex Colombia S.A., CO 13999 2222 493 324 Mega Cable, S.A. de C.V., MX 11830 1860 369 65 Instituto Costarricense de Electricidad y 11664 1509 277 34 Techtel LMDS Comunicaciones Interactivas 28573 1389 2433 268 Claro NXT Telecomunicacoes Ltda, BR 3816 1267 762 225 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC, 6147 1178 371 21 INTEGRATEL PERU S.A.A., PE 22884 1098 73 382 TOTAL PLAY TELECOMUNICACIONES, S.A.P.I. D 27715 1078 75 54 Locaweb Servicos de Internet SA, BR 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 1972 481 26 RAYA-AS, EG 36992 1943 1543 326 ETISALAT-MISR, EG 24863 1457 389 20 LINKdotNET-AS, EG 36903 1352 588 110 MT-MPLS, MA 36935 1303 524 47 Vodafone-, EG 37069 1128 1100 11 MOBINIL, EG 29571 1086 70 18 ORANGE-COTE-IVOIRE, CI 15399 806 57 60 WANANCHI-, KE 20011 562 162 174 NTT-DATA-Inc, ZA 36914 546 82 3 KENET-AS, 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 18664 42595 5619 AMAZON-02 - Amazon.com, Inc., US 9808 14023 8737 135 CHINAMOBILE-CN China Mobile Communication 8151 13271 3296 616 UNINET, MX 12479 6940 1709 149 UNI2-AS, ES 9498 5102 560 328 BBIL-AP BHARTI Airtel Ltd., IN 39891 4976 307 73 ALJAWWALSTC-AS, SA 22773 4912 3307 455 ASN-CXA-ALL-CCI-22773-RDC - Cox Communica 7545 4642 833 276 TPG-INTERNET-AP TPG Telecom Limited, AU 11492 4630 307 1089 CABLEONE - CABLE ONE, INC., US 9009 4374 390 2672 M247, RO 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 14023 13888 CHINAMOBILE-CN China Mobile Communications Grou 8151 13271 12655 UNINET, MX 12479 6940 6791 UNI2-AS, ES 39891 4976 4903 ALJAWWALSTC-AS, SA 9498 5102 4774 BBIL-AP BHARTI Airtel Ltd., IN 22773 4912 4457 ASN-CXA-ALL-CCI-22773-RDC - Cox Communications 7545 4642 4366 TPG-INTERNET-AP TPG Telecom Limited, AU 7155 4337 4250 VIASAT-SP-BACKBONE - ViaSat,Inc., US 7552 4082 4058 VIETEL-AS-AP Viettel Group, VN 6327 3835 3763 SHAW - Shaw Communications, CA 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 4593 UNALLOCATED 2.26.176.0/24 10122 NETSTAR-AS-AP NETSTAR S 4593 UNALLOCATED 2.26.216.0/24 10122 NETSTAR-AS-AP NETSTAR S 4593 UNALLOCATED 2.26.219.0/24 10122 NETSTAR-AS-AP NETSTAR S 394928 UNALLOCATED 8.2.70.0/24 3356 LEVEL3 - Level 3 Parent 23338 UNALLOCATED 8.14.84.0/22 33667 CMCS - Comcast Cable Co 395729 UNALLOCATED 8.28.60.0/24 32787 PROLEXIC-TECHNOLOGIES-D 396894 UNALLOCATED 8.28.201.0/24 3356 LEVEL3 - Level 3 Parent 394936 UNALLOCATED 8.33.224.0/24 174 COGENT-174 - Cogent Com 396243 UNALLOCATED 8.34.113.0/24 3356 LEVEL3 - Level 3 Parent 397274 UNALLOCATED 8.36.79.0/24 3356 LEVEL3 - Level 3 Parent Complete listing at https://bgp.nsrc.org/REN/AARNET/data-badAS Advertised Unallocated Addresses -------------------------------- Unassigned Network ASN Information AS Name 23.130.160.0/24 Origin: 16509 AMAZON-02 - Amazon.com, Inc., US 23.130.160.0/24 Transit: 7575 AARNET-AS-AP Australian Academic and Res 23.131.100.0/24 Origin: 401541 OSIE - Osie, ZZ 23.131.100.0/24 Transit: 38733 CMCTELECOM-VN CMC Telecom Infrastructure 23.131.156.0/24 Origin: 401541 OSIE - Osie, ZZ 23.131.156.0/24 Transit: 38733 CMCTELECOM-VN CMC Telecom Infrastructure 23.131.212.0/24 Origin: 401541 OSIE - Osie, ZZ 23.131.212.0/24 Transit: 38733 CMCTELECOM-VN CMC Telecom Infrastructure 23.133.212.0/24 Origin: 18604 AIHOST - Ai Host, LLC, ZZ 23.133.212.0/24 Transit: 394625 WHITELABELIT - WhiteLabel IT Solutions C 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 /10:39 /11:97 /12:299 /13:589 /14:1190 /15:2133 /16:13729 /17:8279 /18:13283 /19:25507 /20:45269 /21:53302 /22:113609 /23:110700 /24:684579 /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 7428 13271 UNINET, MX 12479 5859 6940 UNI2-AS, ES 39891 3661 4976 ALJAWWALSTC-AS, SA 16509 3610 18664 AMAZON-02 - Amazon.com, Inc., US 6327 3602 3835 SHAW - Shaw Communications, CA 11492 3511 4630 CABLEONE - CABLE ONE, INC., US 7155 3268 4337 VIASAT-SP-BACKBONE - ViaSat,Inc., US 22773 3134 4912 ASN-CXA-ALL-CCI-22773-RDC - Cox Communications Inc., US 10620 2234 3399 Telmex Colombia S.A., CO 30036 2187 2533 MEDIACOM-ENTERPRISE-BUSINESS - Mediacom Communications Corp, US Complete listing at https://bgp.nsrc.org/REN/AARNET/data-sXXas-nos Number of /24s announced per /8 block (Global) ---------------------------------------------- 1:2020 2:2911 3:1827 4:6 5:5492 6:211 7:6 8:1498 9:308 11:172 12:1082 13:1487 14:2711 15:488 16:316 17:468 18:1736 20:619 21:4 22:188 23:8634 24:2816 25:2 27:2947 28:8 29:19 31:3946 32:33 34:94 35:305 36:4901 37:4451 38:10542 39:1445 40:451 41:4601 42:1045 43:3456 44:528 45:19935 46:4973 47:458 48:171 49:2327 50:2023 51:1037 52:1520 54:474 55:1148 56:11 57:332 58:2671 59:1486 60:1191 61:3239 62:3186 63:1680 64:6722 65:2276 66:6315 67:3328 68:1342 69:4138 70:1086 71:612 72:3296 74:3149 75:1756 76:592 77:2911 78:2164 79:1981 80:2402 81:2303 82:4416 83:1516 84:2176 85:3927 86:1149 87:2961 88:1368 89:4956 90:780 91:8548 92:2786 93:3057 94:4639 95:4770 96:1454 97:305 98:970 99:1161 100:65 101:1374 102:4753 103:32423 104:5796 105:966 106:969 107:3006 108:1731 109:3998 110:2233 111:4215 112:3209 113:1693 114:2626 115:2327 116:2080 117:3890 118:2606 119:2075 120:2854 121:1820 122:3072 123:2226 124:1937 125:2982 126:175 128:1626 129:1001 130:1784 131:2633 132:956 133:483 134:1831 135:676 136:1558 137:1615 138:3438 139:1835 140:1888 141:1913 142:2734 143:2365 144:1938 145:704 146:2263 147:2391 148:2890 149:3570 150:1474 151:3141 152:2476 153:2273 154:9056 155:2379 156:4166 157:2491 158:1658 159:2987 160:4176 161:2165 162:4249 163:2780 164:2474 165:2800 166:1255 167:2418 168:4257 169:988 170:5597 171:1141 172:4959 173:3479 174:894 175:1430 176:4064 177:5591 178:4676 179:2830 180:3345 181:4715 182:4094 183:2655 184:2203 185:22077 186:6574 187:6039 188:4858 189:5003 190:10017 191:2010 192:12009 193:9625 194:7986 195:6013 196:3485 197:3278 198:6492 199:6159 200:8487 201:6947 202:10605 203:10682 204:4737 205:3762 206:4533 207:4045 208:4351 209:5532 210:4684 211:2729 212:5274 213:4137 214:1032 215:50 216:7321 217:3915 218:1927 219:411 220:2245 221:1442 222:978 223:3651 End of report