IPv4 R&E Routing Table Report 21:10 GMT Sun 11 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: 982378 Prefixes after maximum aggregation (per Origin AS): 378209 Deaggregation factor: 2.60 Unique aggregates announced (without unneeded subnets): 479239 Number of IPv4 prefixes with a valid ROA: 544258 Number of IPv4 prefixes with an invalid ROA: 146 Number of IPv4 prefixes with no ROA: 437974 Total ASes present in the Internet Routing Table: 76800 Prefixes per ASN: 12.79 Origin-only ASes present in the Internet Routing Table: 65798 Origin ASes announcing only one prefix: 26966 Transit ASes present in the Internet Routing Table: 11002 Transit-only ASes present in the Internet Routing Table: 543 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: 60 Max AS path prepend of ASN ( 37447) 57 Prefixes from unregistered ASNs in the Routing Table: 968 Number of instances of unregistered ASNs: 974 Number of 32-bit ASNs allocated by the RIRs: 46393 Number of 32-bit ASNs visible in the Routing Table: 38201 Prefixes from 32-bit ASNs in the Routing Table: 202005 Number of bogon 32-bit ASNs visible in the Routing Table: 30 Special use prefixes present in the Routing Table: 1 Prefixes being announced from unallocated address space: 467 Number of addresses announced to Internet: 3109612800 Equivalent to 185 /8s, 88 /16s and 237 /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: 321839 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 257489 Total APNIC prefixes after maximum aggregation: 76982 APNIC Deaggregation factor: 3.34 Prefixes being announced from the APNIC address blocks: 248550 Unique aggregates announced from the APNIC address blocks: 103182 APNIC Region origin ASes present in the Internet Routing Table: 14610 APNIC Prefixes per ASN: 17.01 APNIC Region origin ASes announcing only one prefix: 4475 APNIC Region transit ASes present in the Internet Routing Table: 1970 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: 10128 Number of APNIC addresses announced to Internet: 748407040 Equivalent to 44 /8s, 155 /16s and 201 /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: 290569 Total ARIN prefixes after maximum aggregation: 130441 ARIN Deaggregation factor: 2.23 Prefixes being announced from the ARIN address blocks: 291921 Unique aggregates announced from the ARIN address blocks: 138670 ARIN Region origin ASes present in the Internet Routing Table: 19240 ARIN Prefixes per ASN: 15.17 ARIN Region origin ASes announcing only one prefix: 7039 ARIN Region transit ASes present in the Internet Routing Table: 1995 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: 5198 Number of ARIN addresses announced to Internet: 1353113088 Equivalent to 80 /8s, 166 /16s and 222 /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: 273897 Total RIPE prefixes after maximum aggregation: 133990 RIPE Deaggregation factor: 2.04 Prefixes being announced from the RIPE address blocks: 271783 Unique aggregates announced from the RIPE address blocks: 174290 RIPE Region origin ASes present in the Internet Routing Table: 28908 RIPE Prefixes per ASN: 9.40 RIPE Region origin ASes announcing only one prefix: 12048 RIPE Region transit ASes present in the Internet Routing Table: 3978 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: 12421 Number of RIPE addresses announced to Internet: 730996736 Equivalent to 43 /8s, 146 /16s and 32 /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: 124006 Total LACNIC prefixes after maximum aggregation: 29428 LACNIC Deaggregation factor: 4.21 Prefixes being announced from the LACNIC address blocks: 120371 Unique aggregates announced from the LACNIC address blocks: 48823 LACNIC Region origin ASes present in the Internet Routing Table: 11229 LACNIC Prefixes per ASN: 10.72 LACNIC Region origin ASes announcing only one prefix: 2705 LACNIC Region transit ASes present in the Internet Routing Table: 2482 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: 9175 Number of LACNIC addresses announced to Internet: 171740928 Equivalent to 10 /8s, 60 /16s and 143 /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: 35449 Total AfriNIC prefixes after maximum aggregation: 6766 AfriNIC Deaggregation factor: 5.24 Prefixes being announced from the AfriNIC address blocks: 49285 Unique aggregates announced from the AfriNIC address blocks: 13890 AfriNIC Region origin ASes present in the Internet Routing Table: 1912 AfriNIC Prefixes per ASN: 25.78 AfriNIC Region origin ASes announcing only one prefix: 699 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: 105132544 Equivalent to 6 /8s, 68 /16s and 50 /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 10798 8756 96 CHINAMOBILE-CN China Mobile Communication 7545 6162 842 655 TPG-INTERNET-AP TPG Telecom Limited, AU 18403 4393 347 25 FPT-AS-AP FPT Telecom Company, VN 9498 4274 533 299 BBIL-AP BHARTI Airtel Ltd., IN 7552 3908 1332 26 VIETEL-AS-AP Viettel Group, VN 7713 3690 1044 66 TELKOMNET-AS-AP PT Telekomunikasi Indones 45899 3259 1869 100 VNPT-AS-VN VNPT Corp, VN 24560 2865 852 534 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd., 4766 2188 11523 648 KIXS-AS-KR Korea Telecom, KR 45090 2173 1439 86 TENCENT-NET-AP Shenzhen Tencent Computer 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 13334 40835 4854 AMAZON-02, US 11492 4726 313 592 CABLEONE, US 7155 3859 286 85 VIASAT-SP-BACKBONE, US 6327 3621 1320 81 SHAW, CA 22773 3614 3052 212 ASN-CXA-ALL-CCI-22773-RDC, US 174 3449 8750 897 COGENT-174, US 749 3253 54861 2504 DNIC-AS-00749, US 396982 3146 3851 415 GOOGLE-CLOUD-PLATFORM, US 16625 3130 1314 2261 AKAMAI-AS, US 36352 2789 228 853 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 7697 1714 148 UNI2-AS, ES 39891 4797 293 62 ALJAWWALSTC-AS, SA 20940 4054 3395 127 AKAMAI-ASN1, NL 9009 3793 327 1987 M247, RO 12389 3069 2302 885 ROSTELECOM-AS PJSC Rostelecom. Technical 34984 2362 360 584 TELLCOM-AS, TR 212238 2143 151 1578 CDNEXT, GB 8452 1644 1852 14 TE-AS TE-AS, EG 13188 1606 100 34 TRIOLAN, UA 62240 1421 94 736 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 12072 3247 581 UNINET, MX 10620 3505 481 1018 Telmex Colombia S.A., CO 13999 2513 540 362 Mega Cable, S.A. de C.V., MX 11830 1995 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 1207 278 33 Techtel LMDS Comunicaciones Interactivas 6147 1188 371 22 Telefonica del Peru S.A.A., PE 22884 1055 70 378 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 1744 631 30 RAYA-AS, EG 24863 1650 389 16 LINKdotNET-AS, EG 29571 1595 102 33 ORANGE-COTE-IVOIRE, CI 36992 1431 1518 283 ETISALAT-MISR, EG 36903 1249 554 96 MT-MPLS, MA 36935 1019 521 42 Vodafone-, EG 20011 980 185 285 INTERNET-SOLUTIONS, ZA 37069 932 1099 15 MOBINIL, EG 36914 536 82 3 KENET-AS, KE 15399 530 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 13334 40835 4854 AMAZON-02, US 8151 12072 3247 581 UNINET, MX 9808 10798 8756 96 CHINAMOBILE-CN China Mobile Communication 12479 7697 1714 148 UNI2-AS, ES 7545 6162 842 655 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4797 293 62 ALJAWWALSTC-AS, SA 11492 4726 313 592 CABLEONE, US 18403 4393 347 25 FPT-AS-AP FPT Telecom Company, VN 9498 4274 533 299 BBIL-AP BHARTI Airtel Ltd., IN 20940 4054 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 12072 11491 UNINET, MX 9808 10798 10702 CHINAMOBILE-CN China Mobile Communications Grou 12479 7697 7549 UNI2-AS, ES 7545 6162 5507 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4797 4735 ALJAWWALSTC-AS, SA 18403 4393 4368 FPT-AS-AP FPT Telecom Company, VN 11492 4726 4134 CABLEONE, US 9498 4274 3975 BBIL-AP BHARTI Airtel Ltd., IN 20940 4054 3927 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 23.152.48.0/24 Origin: 46167 RESERVED, ZZ 23.152.48.0/24 Transit: 7018 ATT-INTERNET4, US 23.155.208.0/24 Origin: 396169 AS-GHCIL-01, US 23.155.208.0/24 Transit: 35985 ONERINGNET-ATL-1, 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 /11:93 /12:300 /13:582 /14:1223 /15:2167 /16:13988 /17:8273 /18:13718 /19:24613 /20:43734 /21:51711 /22:111990 /23:101954 /24:607958 /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 6618 7697 UNI2-AS, ES 8151 6269 12072 UNINET, MX 11492 3533 4726 CABLEONE, US 39891 3489 4797 ALJAWWALSTC-AS, SA 6327 3417 3621 SHAW, CA 7155 2818 3859 VIASAT-SP-BACKBONE, US 22773 2741 3614 ASN-CXA-ALL-CCI-22773-RDC, US 16509 2322 13334 AMAZON-02, US 30036 2224 2565 MEDIACOM-ENTERPRISE-BUSINESS, US 10620 2191 3505 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) ---------------------------------------------- 1:2336 2:1529 3:713 4:11 5:4678 6:162 7:6 8:1570 9:1 11:172 12:1365 13:384 14:2516 15:353 16:285 17:373 18:921 20:518 21:4 22:188 23:7552 24:2803 25:2 27:2775 29:19 31:3251 32:37 33:1 34:80 35:208 36:2758 37:4640 38:9123 39:909 40:167 41:4202 42:2002 43:2578 44:379 45:18575 46:5064 47:294 49:1932 50:1894 51:590 52:1553 54:304 55:1093 56:11 57:257 58:2215 59:1217 60:1164 61:2771 62:2920 63:1810 64:5478 65:2118 66:4676 67:3070 68:1156 69:3930 70:1146 71:639 72:2873 74:2782 75:1619 76:614 77:2702 78:1894 79:1760 80:2202 81:2054 82:3140 83:1432 84:1855 85:3430 86:1049 87:2160 88:1316 89:4350 90:774 91:8349 92:2679 93:2895 94:4030 95:4316 96:1462 97:312 98:1020 99:677 100:72 101:1154 102:3917 103:32216 104:5014 105:763 106:1033 107:2660 108:1217 109:4077 110:2230 111:3361 112:2057 113:1788 114:1968 115:2207 116:2046 117:2668 118:2895 119:1955 120:1888 121:1373 122:2754 123:2184 124:1566 125:2845 126:91 128:1607 129:955 130:1306 131:1965 132:788 133:451 134:1539 135:331 136:1307 137:1301 138:2887 139:1637 140:1578 141:1501 142:1901 143:1715 144:1094 145:505 146:2164 147:2096 148:2612 149:2852 150:1215 151:1852 152:2086 153:564 154:8115 155:1689 156:3442 157:1906 158:1297 159:2444 160:3576 161:1893 162:3736 163:2146 164:1692 165:2202 166:1473 167:1907 168:4040 169:797 170:5092 171:1010 172:4423 173:3265 174:918 175:1301 176:3671 177:4675 178:3624 179:2292 180:2622 181:4060 182:3427 183:2082 184:2114 185:21583 186:5133 187:4461 188:4225 189:4246 190:9611 191:1476 192:11253 193:9493 194:7761 195:5513 196:3297 197:3693 198:6210 199:8486 200:8211 201:6417 202:10282 203:10630 204:4548 205:3638 206:4517 207:3572 208:4280 209:5213 210:4589 211:2536 212:4538 213:3706 214:1031 215:48 216:6736 217:3130 218:1342 219:376 220:2084 221:1080 222:718 223:2362 End of report