IPv4 R&E Routing Table Report 21:10 GMT Tue 27 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: 985008 Prefixes after maximum aggregation (per Origin AS): 379601 Deaggregation factor: 2.59 Unique aggregates announced (without unneeded subnets): 481580 Number of IPv4 prefixes with a valid ROA: 547718 Number of IPv4 prefixes with an invalid ROA: 146 Number of IPv4 prefixes with no ROA: 437144 Total ASes present in the Internet Routing Table: 76863 Prefixes per ASN: 12.82 Origin-only ASes present in the Internet Routing Table: 65874 Origin ASes announcing only one prefix: 26965 Transit ASes present in the Internet Routing Table: 10989 Transit-only ASes present in the Internet Routing Table: 542 Paths with bogon ASNs present in the IPv4 Routing Table: 21 Average AS path length visible in the Internet Routing Table: 4.4 Max AS path length visible: 69 Max AS path prepend of ASN ( 37447) 66 Prefixes from unregistered ASNs in the Routing Table: 1003 Number of instances of unregistered ASNs: 1009 Number of 32-bit ASNs allocated by the RIRs: 46522 Number of 32-bit ASNs visible in the Routing Table: 38293 Prefixes from 32-bit ASNs in the Routing Table: 203652 Number of bogon 32-bit ASNs visible in the Routing Table: 31 Special use prefixes present in the Routing Table: 1 Prefixes being announced from unallocated address space: 464 Number of addresses announced to Internet: 3109680384 Equivalent to 185 /8s, 89 /16s and 245 /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: 322178 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 257964 Total APNIC prefixes after maximum aggregation: 77216 APNIC Deaggregation factor: 3.34 Prefixes being announced from the APNIC address blocks: 248976 Unique aggregates announced from the APNIC address blocks: 104162 APNIC Region origin ASes present in the Internet Routing Table: 14608 APNIC Prefixes per ASN: 17.04 APNIC Region origin ASes announcing only one prefix: 4457 APNIC Region transit ASes present in the Internet Routing Table: 1954 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: 10129 Number of APNIC addresses announced to Internet: 748581888 Equivalent to 44 /8s, 158 /16s and 116 /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: 292004 Total ARIN prefixes after maximum aggregation: 131136 ARIN Deaggregation factor: 2.23 Prefixes being announced from the ARIN address blocks: 292694 Unique aggregates announced from the ARIN address blocks: 139501 ARIN Region origin ASes present in the Internet Routing Table: 19243 ARIN Prefixes per ASN: 15.21 ARIN Region origin ASes announcing only one prefix: 7055 ARIN Region transit ASes present in the Internet Routing Table: 1983 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: 5219 Number of ARIN addresses announced to Internet: 1352449536 Equivalent to 80 /8s, 156 /16s and 190 /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: 274302 Total RIPE prefixes after maximum aggregation: 134313 RIPE Deaggregation factor: 2.04 Prefixes being announced from the RIPE address blocks: 272611 Unique aggregates announced from the RIPE address blocks: 174881 RIPE Region origin ASes present in the Internet Routing Table: 28932 RIPE Prefixes per ASN: 9.42 RIPE Region origin ASes announcing only one prefix: 12076 RIPE Region transit ASes present in the Internet Routing Table: 3988 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: 12463 Number of RIPE addresses announced to Internet: 731394048 Equivalent to 43 /8s, 152 /16s and 48 /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: 124172 Total LACNIC prefixes after maximum aggregation: 29630 LACNIC Deaggregation factor: 4.19 Prefixes being announced from the LACNIC address blocks: 120529 Unique aggregates announced from the LACNIC address blocks: 48966 LACNIC Region origin ASes present in the Internet Routing Table: 11254 LACNIC Prefixes per ASN: 10.71 LACNIC Region origin ASes announcing only one prefix: 2683 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: 9201 Number of LACNIC addresses announced to Internet: 171864832 Equivalent to 10 /8s, 62 /16s and 115 /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: 35563 Total AfriNIC prefixes after maximum aggregation: 6689 AfriNIC Deaggregation factor: 5.32 Prefixes being announced from the AfriNIC address blocks: 49733 Unique aggregates announced from the AfriNIC address blocks: 13662 AfriNIC Region origin ASes present in the Internet Routing Table: 1913 AfriNIC Prefixes per ASN: 26.00 AfriNIC Region origin ASes announcing only one prefix: 694 AfriNIC Region transit ASes present in the Internet Routing Table: 378 Average AfriNIC Region AS path length visible: 5.1 Max AfriNIC Region AS path length visible: 69 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 1281 Number of AfriNIC addresses announced to Internet: 105178112 Equivalent to 6 /8s, 68 /16s and 228 /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 11045 8756 96 CHINAMOBILE-CN China Mobile Communication 7545 6179 844 651 TPG-INTERNET-AP TPG Telecom Limited, AU 18403 4396 347 25 FPT-AS-AP FPT Telecom Company, VN 9498 4286 533 299 BBIL-AP BHARTI Airtel Ltd., IN 7552 3922 1332 26 VIETEL-AS-AP Viettel Group, VN 7713 3693 1044 66 TELKOMNET-AS-AP PT Telekomunikasi Indones 45899 3265 1869 100 VNPT-AS-VN VNPT Corp, VN 24560 2869 853 531 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd., 45090 2173 1439 86 TENCENT-NET-AP Shenzhen Tencent Computer 4755 2166 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 13563 40828 5178 AMAZON-02, US 11492 4735 314 586 CABLEONE, US 7155 3864 286 85 VIASAT-SP-BACKBONE, US 6327 3622 1320 81 SHAW, CA 22773 3616 3052 210 ASN-CXA-ALL-CCI-22773-RDC, US 174 3446 8746 888 COGENT-174, US 749 3231 54784 2482 DNIC-AS-00749, US 396982 3170 3852 418 GOOGLE-CLOUD-PLATFORM, US 16625 3152 1316 2263 AKAMAI-AS, US 36352 2821 230 850 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 7705 1714 148 UNI2-AS, ES 39891 4798 293 63 ALJAWWALSTC-AS, SA 20940 4066 3395 127 AKAMAI-ASN1, NL 9009 3880 341 2091 M247, RO 12389 3071 2305 887 ROSTELECOM-AS PJSC Rostelecom. Technical 34984 2391 360 580 TELLCOM-AS, TR 212238 2161 152 1590 CDNEXT, GB 8452 1633 1852 14 TE-AS TE-AS, EG 13188 1606 100 34 TRIOLAN, UA 62240 1423 94 738 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 12169 3255 582 UNINET, MX 10620 3500 480 1017 Telmex Colombia S.A., CO 13999 2514 540 365 Mega Cable, S.A. de C.V., MX 11830 1990 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, 6147 1198 371 22 Telefonica del Peru S.A.A., PE 22884 1062 70 379 TOTAL PLAY TELECOMUNICACIONES SA DE CV, M 26615 1041 2503 52 TIM SA, BR 6503 1032 373 163 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 1780 644 27 RAYA-AS, EG 24863 1654 389 17 LINKdotNET-AS, EG 29571 1608 102 33 ORANGE-COTE-IVOIRE, CI 36992 1431 1519 280 ETISALAT-MISR, EG 36903 1250 554 97 MT-MPLS, MA 37069 1107 1100 18 MOBINIL, EG 36935 1058 523 46 Vodafone-, EG 20011 980 185 285 INTERNET-SOLUTIONS, ZA 36914 550 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 13563 40828 5178 AMAZON-02, US 8151 12169 3255 582 UNINET, MX 9808 11045 8756 96 CHINAMOBILE-CN China Mobile Communication 12479 7705 1714 148 UNI2-AS, ES 7545 6179 844 651 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4798 293 63 ALJAWWALSTC-AS, SA 11492 4735 314 586 CABLEONE, US 18403 4396 347 25 FPT-AS-AP FPT Telecom Company, VN 9498 4286 533 299 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 12169 11587 UNINET, MX 9808 11045 10949 CHINAMOBILE-CN China Mobile Communications Grou 12479 7705 7557 UNI2-AS, ES 7545 6179 5528 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4798 4735 ALJAWWALSTC-AS, SA 18403 4396 4371 FPT-AS-AP FPT Telecom Company, VN 11492 4735 4149 CABLEONE, US 9498 4286 3987 BBIL-AP BHARTI Airtel Ltd., IN 20940 4066 3939 AKAMAI-ASN1, NL 7552 3922 3896 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 /13:583 /14:1221 /15:2166 /16:13905 /17:8275 /18:13692 /19:24634 /20:43978 /21:51728 /22:111991 /23:102486 /24:609884 /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 6620 7705 UNI2-AS, ES 8151 6359 12169 UNINET, MX 11492 3532 4735 CABLEONE, US 39891 3489 4798 ALJAWWALSTC-AS, SA 6327 3418 3622 SHAW, CA 7155 2823 3864 VIASAT-SP-BACKBONE, US 22773 2744 3616 ASN-CXA-ALL-CCI-22773-RDC, US 16509 2382 13563 AMAZON-02, US 30036 2237 2579 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) ---------------------------------------------- 1:2367 2:1526 3:794 4:9 5:4694 6:162 7:6 8:1577 9:1 11:172 12:1360 13:435 14:2518 15:354 16:285 17:376 18:921 20:528 21:4 22:188 23:7590 24:2807 25:2 27:2784 29:19 31:3273 32:36 33:1 34:80 35:212 36:2955 37:4607 38:9156 39:907 40:170 41:4219 42:1966 43:2584 44:385 45:18571 46:5081 47:301 49:1912 50:1887 51:590 52:1563 54:320 55:1093 56:11 57:263 58:2218 59:1221 60:1168 61:2790 62:2917 63:1801 64:5474 65:2069 66:4667 67:3067 68:1162 69:3939 70:1144 71:633 72:2862 74:2793 75:1520 76:615 77:2697 78:1910 79:1670 80:2206 81:2082 82:3141 83:1449 84:1864 85:3425 86:1066 87:2132 88:1313 89:4400 90:775 91:8377 92:2713 93:2901 94:4057 95:4338 96:1460 97:312 98:1019 99:690 100:71 101:1177 102:3884 103:32207 104:5053 105:766 106:1033 107:2672 108:1245 109:4024 110:2243 111:3287 112:2100 113:1806 114:1972 115:2184 116:2046 117:2576 118:2868 119:1913 120:1944 121:1380 122:2765 123:2188 124:1581 125:2854 126:91 128:1628 129:956 130:1323 131:1973 132:784 133:451 134:1543 135:333 136:1355 137:1309 138:2899 139:1596 140:1594 141:1505 142:1906 143:1779 144:1115 145:504 146:2188 147:2113 148:2695 149:2892 150:1213 151:1936 152:2088 153:561 154:7995 155:1984 156:3259 157:1914 158:1324 159:2449 160:3837 161:1847 162:3760 163:2187 164:1729 165:2219 166:1493 167:1898 168:4310 169:796 170:5084 171:1011 172:4456 173:3293 174:924 175:1302 176:3699 177:4756 178:3641 179:2331 180:2630 181:4069 182:3443 183:2062 184:2115 185:21594 186:5158 187:4494 188:4249 189:4323 190:9555 191:1477 192:11311 193:9486 194:7779 195:5533 196:3267 197:3642 198:6211 199:8493 200:8196 201:6353 202:10297 203:10654 204:4562 205:3650 206:4510 207:3579 208:4263 209:5177 210:4599 211:2531 212:4562 213:3733 214:1024 215:48 216:6760 217:3127 218:1348 219:380 220:2088 221:1096 222:723 223:2387 End of report