IPv4 R&E Routing Table Report 21:10 GMT Tue 04 Nov, 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: 1011461 Prefixes after maximum aggregation (per Origin AS): 391582 Deaggregation factor: 2.58 Unique aggregates announced (without unneeded subnets): 500117 Number of IPv4 prefixes with a valid ROA: 585239 Number of IPv4 prefixes with an invalid ROA: 131 Number of IPv4 prefixes with no ROA: 426091 Total ASes present in the Internet Routing Table: 77491 Prefixes per ASN: 13.05 Origin-only ASes present in the Internet Routing Table: 66345 Origin ASes announcing only one prefix: 27100 Transit ASes present in the Internet Routing Table: 11146 Transit-only ASes present in the Internet Routing Table: 557 Paths with bogon ASNs present in the IPv4 Routing Table: 5 Average AS path length visible in the Internet Routing Table: 4.3 Max AS path length visible: 52 Max AS path prepend of ASN (207092) 41 Prefixes from unregistered ASNs in the Routing Table: 945 Number of instances of unregistered ASNs: 974 Number of 32-bit ASNs allocated by the RIRs: 47882 Number of 32-bit ASNs visible in the Routing Table: 39246 Prefixes from 32-bit ASNs in the Routing Table: 214869 Number of bogon 32-bit ASNs visible in the Routing Table: 68 Special use prefixes present in the Routing Table: 0 Prefixes being announced from unallocated address space: 418 Number of addresses announced to Internet: 3100459264 Equivalent to 184 /8s, 205 /16s and 65 /24s Percentage of available address space announced: 83.7 Percentage of allocated address space announced: 83.7 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: 331869 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 270674 Total APNIC prefixes after maximum aggregation: 80482 APNIC Deaggregation factor: 3.36 Prefixes being announced from the APNIC address blocks: 260575 Unique aggregates announced from the APNIC address blocks: 106277 APNIC Region origin ASes present in the Internet Routing Table: 14842 APNIC Prefixes per ASN: 17.56 APNIC Region origin ASes announcing only one prefix: 4529 APNIC Region transit ASes present in the Internet Routing Table: 2002 Average APNIC Region AS path length visible: 4.1 Max APNIC Region AS path length visible: 31 Number of APNIC region 32-bit ASNs visible in the Routing Table: 10400 Number of APNIC addresses announced to Internet: 751709696 Equivalent to 44 /8s, 206 /16s and 46 /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: 297674 Total ARIN prefixes after maximum aggregation: 133626 ARIN Deaggregation factor: 2.23 Prefixes being announced from the ARIN address blocks: 297957 Unique aggregates announced from the ARIN address blocks: 145218 ARIN Region origin ASes present in the Internet Routing Table: 19381 ARIN Prefixes per ASN: 15.37 ARIN Region origin ASes announcing only one prefix: 7111 ARIN Region transit ASes present in the Internet Routing Table: 1985 Average ARIN Region AS path length visible: 3.9 Max ARIN Region AS path length visible: 35 Number of ARIN region 32-bit ASNs visible in the Routing Table: 5408 Number of ARIN addresses announced to Internet: 1338806784 Equivalent to 79 /8s, 204 /16s and 146 /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: 281316 Total RIPE prefixes after maximum aggregation: 139504 RIPE Deaggregation factor: 2.02 Prefixes being announced from the RIPE address blocks: 281721 Unique aggregates announced from the RIPE address blocks: 182174 RIPE Region origin ASes present in the Internet Routing Table: 29100 RIPE Prefixes per ASN: 9.68 RIPE Region origin ASes announcing only one prefix: 12085 RIPE Region transit ASes present in the Internet Routing Table: 4034 Average RIPE Region AS path length visible: 4.4 Max RIPE Region AS path length visible: 45 Number of RIPE region 32-bit ASNs visible in the Routing Table: 12799 Number of RIPE addresses announced to Internet: 735459072 Equivalent to 43 /8s, 214 /16s and 55 /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: 125458 Total LACNIC prefixes after maximum aggregation: 30413 LACNIC Deaggregation factor: 4.13 Prefixes being announced from the LACNIC address blocks: 121530 Unique aggregates announced from the LACNIC address blocks: 49486 LACNIC Region origin ASes present in the Internet Routing Table: 11307 LACNIC Prefixes per ASN: 10.75 LACNIC Region origin ASes announcing only one prefix: 2652 LACNIC Region transit ASes present in the Internet Routing Table: 2559 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: 9293 Number of LACNIC addresses announced to Internet: 170705664 Equivalent to 10 /8s, 44 /16s and 195 /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: 35394 Total AfriNIC prefixes after maximum aggregation: 6912 AfriNIC Deaggregation factor: 5.12 Prefixes being announced from the AfriNIC address blocks: 49259 Unique aggregates announced from the AfriNIC address blocks: 16593 AfriNIC Region origin ASes present in the Internet Routing Table: 1987 AfriNIC Prefixes per ASN: 24.79 AfriNIC Region origin ASes announcing only one prefix: 723 AfriNIC Region transit ASes present in the Internet Routing Table: 377 Average AfriNIC Region AS path length visible: 5.0 Max AfriNIC Region AS path length visible: 42 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 1346 Number of AfriNIC addresses announced to Internet: 103555584 Equivalent to 6 /8s, 44 /16s and 34 /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 13386 8730 117 CHINAMOBILE-CN China Mobile Communication 7545 6098 833 589 TPG-INTERNET-AP TPG Telecom Limited, AU 9498 4507 538 315 BBIL-AP BHARTI Airtel Ltd., IN 18403 4399 347 24 FPT-AS-AP FPT Telecom Company, VN 7552 3980 1332 28 VIETEL-AS-AP Viettel Group, VN 7713 3718 1044 66 TELKOMNET-AS-AP PT Telekomunikasi Indones 45899 3307 1868 98 VNPT-AS-VN VNPT Corp, VN 56046 3244 827 180 CMNET-JIANGSU-AP China Mobile communicati 24560 2936 864 504 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd., 140292 2489 273 1919 CHINATELECOM-JIANGSU-SUZHOU-5G-NETWORK CH 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 14262 37242 5370 AMAZON-02, US 11492 4776 317 802 CABLEONE, US 22773 4634 3107 404 ASN-CXA-ALL-CCI-22773-RDC, US 7155 3861 286 85 VIASAT-SP-BACKBONE, US 6327 3687 1320 82 SHAW, CA 396982 3281 4827 473 GOOGLE-CLOUD-PLATFORM, US 749 3217 54766 2468 DNIC-AS-00749, US 16625 3019 1293 2194 AKAMAI-AS, US 36352 2851 231 921 AS-COLOCROSSING, US 30036 2653 365 304 MEDIACOM-ENTERPRISE-BUSINESS, 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 7281 1711 149 UNI2-AS, ES 39891 4833 298 66 ALJAWWALSTC-AS, SA 20940 4022 3395 126 AKAMAI-ASN1, NL 9009 4012 377 2279 M247, RO 12389 3150 2317 868 ROSTELECOM-AS PJSC Rostelecom. Technical 212238 2535 178 1826 CDNEXT, GB 34984 2416 363 575 TELLCOM-AS, TR 8452 1654 1852 14 TE-AS TE-AS, EG 13188 1607 100 27 TRIOLAN, UA 203020 1580 184 907 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 12498 3299 573 UNINET, MX 10620 3455 463 1098 Telmex Colombia S.A., CO 13999 2503 511 350 Mega Cable, S.A. de C.V., MX 11830 1990 369 64 Instituto Costarricense de Electricidad y 28573 1376 2433 261 Claro NXT Telecomunicacoes Ltda, BR 3816 1353 789 206 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC, 11664 1304 278 31 Techtel LMDS Comunicaciones Interactivas 6147 1276 371 23 Telefonica del Peru S.A.A., PE 22884 1062 70 366 TOTAL PLAY TELECOMUNICACIONES SA DE CV, M 26615 1026 2486 56 TIM 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 1861 630 32 RAYA-AS, EG 36992 1679 1509 397 ETISALAT-MISR, EG 24863 1264 389 20 LINKdotNET-AS, EG 36903 1250 554 97 MT-MPLS, MA 29571 1191 102 52 ORANGE-COTE-IVOIRE, CI 36935 1119 523 47 Vodafone-, EG 37069 1085 1096 13 MOBINIL, EG 20011 580 154 212 NTT-DATA-Inc, ZA 36914 566 82 3 KENET-AS, KE 15399 544 57 55 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 14262 37242 5370 AMAZON-02, US 9808 13386 8730 117 CHINAMOBILE-CN China Mobile Communication 8151 12498 3299 573 UNINET, MX 12479 7281 1711 149 UNI2-AS, ES 7545 6098 833 589 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4833 298 66 ALJAWWALSTC-AS, SA 11492 4776 317 802 CABLEONE, US 22773 4634 3107 404 ASN-CXA-ALL-CCI-22773-RDC, US 9498 4507 538 315 BBIL-AP BHARTI Airtel Ltd., IN 18403 4399 347 24 FPT-AS-AP FPT Telecom Company, VN 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 13386 13269 CHINAMOBILE-CN China Mobile Communications Grou 8151 12498 11925 UNINET, MX 12479 7281 7132 UNI2-AS, ES 7545 6098 5509 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4833 4767 ALJAWWALSTC-AS, SA 18403 4399 4375 FPT-AS-AP FPT Telecom Company, VN 22773 4634 4230 ASN-CXA-ALL-CCI-22773-RDC, US 9498 4507 4192 BBIL-AP BHARTI Airtel Ltd., IN 11492 4776 3974 CABLEONE, US 7552 3980 3952 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 53775 UNALLOCATED 8.20.88.0/24 3737 AS-PTD, 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 6461 ZAYO-6461, US 395195 UNALLOCATED 8.38.115.0/24 3356 LEVEL3, US 1782 UNALLOCATED 8.42.19.0/24 3356 LEVEL3, US 54739 UNALLOCATED 8.44.198.0/23 13335 CLOUDFLARENET, US 397015 UNALLOCATED 8.44.246.0/24 12025 IMDC-AS12025, US 13342 UNALLOCATED 12.17.5.0/24 174 COGENT-174, US Complete listing at https://bgp.nsrc.org/REN/AARNET/data-badAS Advertised Unallocated Addresses -------------------------------- Unassigned Network ASN Information AS Name 23.135.216.0/24 Origin: 400565 RESERVED, ZZ 23.135.216.0/24 Transit: 3356 LEVEL3, 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 23.147.240.0/24 Origin: 32302 RESERVED, ZZ 23.147.240.0/24 Transit: 32787 PROLEXIC-TECHNOLOGIES-DDOS-MITIGATION-NE 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 /11:94 /12:298 /13:581 /14:1199 /15:2095 /16:13683 /17:8214 /18:13510 /19:24717 /20:44383 /21:52073 /22:112862 /23:105025 /24:632655 /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 6702 12498 UNINET, MX 12479 6242 7281 UNI2-AS, ES 11492 3589 4776 CABLEONE, US 39891 3521 4833 ALJAWWALSTC-AS, SA 6327 3476 3687 SHAW, CA 22773 2985 4634 ASN-CXA-ALL-CCI-22773-RDC, US 7155 2820 3861 VIASAT-SP-BACKBONE, US 16509 2438 14262 AMAZON-02, US 30036 2310 2653 MEDIACOM-ENTERPRISE-BUSINESS, US 10620 2210 3455 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) ---------------------------------------------- 1:2427 2:1559 3:967 4:10 5:4906 6:173 7:6 8:1508 9:6 11:172 12:1240 13:546 14:2648 15:403 16:303 17:387 18:908 20:581 21:4 22:188 23:8102 24:2609 25:2 27:2813 29:19 31:3358 32:31 33:1 34:84 35:274 36:4500 37:4570 38:9368 39:1174 40:465 41:4319 42:1944 43:2781 44:408 45:19202 46:5207 47:368 49:2138 50:2053 51:596 52:1628 54:357 55:1093 56:11 57:292 58:2289 59:1309 60:1187 61:2983 62:3106 63:1764 64:5895 65:2127 66:5886 67:3247 68:1483 69:4125 70:1034 71:637 72:2984 74:2887 75:1511 76:601 77:2767 78:1929 79:1785 80:2266 81:2133 82:3583 83:1473 84:2006 85:3584 86:1106 87:2152 88:1363 89:4514 90:813 91:8396 92:2810 93:2994 94:4164 95:4555 96:1484 97:316 98:948 99:758 100:70 101:1332 102:4235 103:32208 104:5455 105:796 106:910 107:2791 108:1195 109:4210 110:2251 111:3852 112:2757 113:1886 114:2085 115:2286 116:2110 117:3092 118:3056 119:2004 120:2347 121:1506 122:2853 123:2269 124:1660 125:2894 126:124 128:1614 129:963 130:1457 131:2222 132:782 133:461 134:1628 135:366 136:1492 137:1334 138:2860 139:1595 140:1680 141:1575 142:2201 143:2129 144:1324 145:630 146:2189 147:2120 148:2777 149:2832 150:1278 151:2635 152:2281 153:650 154:8115 155:2207 156:3162 157:2005 158:1398 159:2629 160:3770 161:2003 162:3991 163:2325 164:1950 165:2554 166:1319 167:2125 168:3823 169:783 170:5426 171:1064 172:4486 173:3428 174:906 175:1343 176:3752 177:4754 178:4303 179:2293 180:2750 181:4297 182:3788 183:2605 184:2079 185:21697 186:5415 187:4736 188:4393 189:4469 190:9698 191:1588 192:11453 193:9507 194:7845 195:5579 196:3281 197:3240 198:6220 199:6096 200:8165 201:6352 202:10467 203:10602 204:4628 205:3699 206:4394 207:3867 208:4268 209:5379 210:4752 211:2648 212:4893 213:3978 214:1034 215:53 216:7149 217:3397 218:1576 219:399 220:2196 221:1268 222:764 223:3105 End of report