IPv4 R&E Routing Table Report 21:10 GMT Tue 12 May, 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: 1044911 Prefixes after maximum aggregation (per Origin AS): 401838 Deaggregation factor: 2.60 Unique aggregates announced (without unneeded subnets): 517259 Number of IPv4 prefixes with a valid ROA: 639366 Number of IPv4 prefixes with an invalid ROA: 122 Number of IPv4 prefixes with no ROA: 405423 Total ASes present in the Internet Routing Table: 78452 Prefixes per ASN: 13.32 Origin-only ASes present in the Internet Routing Table: 67168 Origin ASes announcing only one prefix: 27438 Transit ASes present in the Internet Routing Table: 11284 Transit-only ASes present in the Internet Routing Table: 590 Paths with bogon ASNs present in the IPv4 Routing Table: 8 Average AS path length visible in the Internet Routing Table: 4.3 Max AS path length visible: 68 Max AS path prepend of ASN (269326) 61 Prefixes from unregistered ASNs in the Routing Table: 999 Number of instances of unregistered ASNs: 1029 Number of 32-bit ASNs allocated by the RIRs: 49733 Number of 32-bit ASNs visible in the Routing Table: 40597 Prefixes from 32-bit ASNs in the Routing Table: 229801 Number of bogon 32-bit ASNs visible in the Routing Table: 74 Special use prefixes present in the Routing Table: 0 Prefixes being announced from unallocated address space: 429 Number of addresses announced to Internet: 3102961152 Equivalent to 184 /8s, 243 /16s and 110 /24s Percentage of available address space announced: 83.8 Percentage of allocated address space announced: 83.8 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: 341544 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 283928 Total APNIC prefixes after maximum aggregation: 83053 APNIC Deaggregation factor: 3.42 Prefixes being announced from the APNIC address blocks: 270212 Unique aggregates announced from the APNIC address blocks: 107876 APNIC Region origin ASes present in the Internet Routing Table: 15193 APNIC Prefixes per ASN: 17.79 APNIC Region origin ASes announcing only one prefix: 4652 APNIC Region transit ASes present in the Internet Routing Table: 2053 Average APNIC Region AS path length visible: 4.2 Max APNIC Region AS path length visible: 37 Number of APNIC region 32-bit ASNs visible in the Routing Table: 10774 Number of APNIC addresses announced to Internet: 747595008 Equivalent to 44 /8s, 143 /16s and 101 /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: 303325 Total ARIN prefixes after maximum aggregation: 136602 ARIN Deaggregation factor: 2.22 Prefixes being announced from the ARIN address blocks: 302720 Unique aggregates announced from the ARIN address blocks: 147696 ARIN Region origin ASes present in the Internet Routing Table: 19438 ARIN Prefixes per ASN: 15.57 ARIN Region origin ASes announcing only one prefix: 7120 ARIN Region transit ASes present in the Internet Routing Table: 1969 Average ARIN Region AS path length visible: 4.0 Max ARIN Region AS path length visible: 35 Number of ARIN region 32-bit ASNs visible in the Routing Table: 5576 Number of ARIN addresses announced to Internet: 1347692800 Equivalent to 80 /8s, 84 /16s and 41 /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: 290736 Total RIPE prefixes after maximum aggregation: 143522 RIPE Deaggregation factor: 2.03 Prefixes being announced from the RIPE address blocks: 293837 Unique aggregates announced from the RIPE address blocks: 191486 RIPE Region origin ASes present in the Internet Routing Table: 29491 RIPE Prefixes per ASN: 9.96 RIPE Region origin ASes announcing only one prefix: 12210 RIPE Region transit ASes present in the Internet Routing Table: 4082 Average RIPE Region AS path length visible: 4.4 Max RIPE Region AS path length visible: 37 Number of RIPE region 32-bit ASNs visible in the Routing Table: 13420 Number of RIPE addresses announced to Internet: 733750272 Equivalent to 43 /8s, 188 /16s and 36 /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: 128822 Total LACNIC prefixes after maximum aggregation: 31017 LACNIC Deaggregation factor: 4.15 Prefixes being announced from the LACNIC address blocks: 123183 Unique aggregates announced from the LACNIC address blocks: 50466 LACNIC Region origin ASes present in the Internet Routing Table: 11393 LACNIC Prefixes per ASN: 10.81 LACNIC Region origin ASes announcing only one prefix: 2727 LACNIC Region transit ASes present in the Internet Routing Table: 2603 Average LACNIC Region AS path length visible: 5.3 Max LACNIC Region AS path length visible: 68 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 9441 Number of LACNIC addresses announced to Internet: 169332224 Equivalent to 10 /8s, 23 /16s and 206 /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: 37101 Total AfriNIC prefixes after maximum aggregation: 7042 AfriNIC Deaggregation factor: 5.27 Prefixes being announced from the AfriNIC address blocks: 54529 Unique aggregates announced from the AfriNIC address blocks: 19362 AfriNIC Region origin ASes present in the Internet Routing Table: 2020 AfriNIC Prefixes per ASN: 26.99 AfriNIC Region origin ASes announcing only one prefix: 729 AfriNIC Region transit ASes present in the Internet Routing Table: 387 Average AfriNIC Region AS path length visible: 5.0 Max AfriNIC Region AS path length visible: 62 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 1386 Number of AfriNIC addresses announced to Internet: 104378624 Equivalent to 6 /8s, 56 /16s and 177 /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 13888 8761 121 CHINAMOBILE-CN China Mobile Communication 7545 5883 826 482 TPG-INTERNET-AP TPG Telecom Limited, AU 9498 4934 551 327 BBIL-AP BHARTI Airtel Ltd., IN 18403 4550 347 25 FPT-AS-AP FPT Telecom Company, VN 7552 4064 1332 28 VIETEL-AS-AP Viettel Group, VN 7713 3692 1044 64 TELKOMNET-AS-AP PT Telekomunikasi Indones 56046 3530 886 176 CMNET-JIANGSU-AP China Mobile communicati 17561 3471 218 608 LCS-AS-AP LARUS Limited, HK 45899 3361 1868 98 VNPT-AS-VN VNPT Corp, VN 24560 2765 762 733 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd., 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 14962 41328 5703 AMAZON-02 - Amazon.com, Inc., US 22773 4783 3115 363 ASN-CXA-ALL-CCI-22773-RDC - Cox Communica 11492 4612 306 1082 CABLEONE - CABLE ONE, INC., US 7155 3870 286 90 VIASAT-SP-BACKBONE - ViaSat,Inc., US 6327 3717 1305 75 SHAW - Shaw Communications, CA 396982 3336 4865 505 GOOGLE-CLOUD-PLATFORM - Google LLC, US 749 3138 54728 2389 DNIC-AS-00749 - United States Department 36352 2913 222 912 AS-COLOCROSSING - HostPapa, US 7029 2633 2558 895 WINDSTREAM - Windstream Communications LL 30036 2611 359 456 MEDIACOM-ENTERPRISE-BUSINESS - Mediacom C 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 7157 1711 149 UNI2-AS, ES 39891 4975 307 72 ALJAWWALSTC-AS, SA 20940 3919 3389 110 AKAMAI-ASN1, NL 9009 3908 359 2316 M247, RO 12389 3146 2321 874 ROSTELECOM-AS PJSC Rostelecom. Technical 212238 2779 203 2050 CDNEXT, GB 34984 2491 367 584 TELLCOM-AS, TR 8452 1689 1852 14 TE-AS TE-AS, EG 203020 1655 252 831 HOSTROYALE, IN 13188 1607 100 27 TRIOLAN, UA 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 12644 3167 797 UNINET, MX 10620 3430 450 1106 Telmex Colombia S.A., CO 13999 2391 504 353 Mega Cable, S.A. de C.V., MX 11830 1937 369 65 Instituto Costarricense de Electricidad y 11664 1450 277 34 Techtel LMDS Comunicaciones Interactivas 28573 1375 2431 268 Claro NXT Telecomunicacoes Ltda, BR 3816 1342 770 213 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC, 6147 1226 379 23 INTEGRATEL PERU S.A.A., PE 22884 1072 70 364 TOTAL PLAY TELECOMUNICACIONES SA DE CV, M 26615 1071 2392 100 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 36992 1860 1532 340 ETISALAT-MISR, EG 24835 1807 649 36 RAYA-AS, EG 24863 1270 389 16 LINKdotNET-AS, EG 36935 1234 521 43 Vodafone-, EG 36903 1232 555 98 MT-MPLS, MA 37069 1116 1100 11 MOBINIL, EG 29571 1077 70 18 ORANGE-COTE-IVOIRE, CI 20011 643 173 262 NTT-DATA-Inc, ZA 328608 614 56 161 Africa-on-Cloud-AS, ZA 3741 553 724 322 NTT-DATA-Inc, ZA 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 14962 41328 5703 AMAZON-02 - Amazon.com, Inc., US 9808 13888 8761 121 CHINAMOBILE-CN China Mobile Communication 8151 12644 3167 797 UNINET, MX 12479 7157 1711 149 UNI2-AS, ES 7545 5883 826 482 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4975 307 72 ALJAWWALSTC-AS, SA 9498 4934 551 327 BBIL-AP BHARTI Airtel Ltd., IN 22773 4783 3115 363 ASN-CXA-ALL-CCI-22773-RDC - Cox Communica 11492 4612 306 1082 CABLEONE - CABLE ONE, INC., US 18403 4550 347 25 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 13888 13767 CHINAMOBILE-CN China Mobile Communications Grou 8151 12644 11847 UNINET, MX 12479 7157 7008 UNI2-AS, ES 7545 5883 5401 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4975 4903 ALJAWWALSTC-AS, SA 9498 4934 4607 BBIL-AP BHARTI Airtel Ltd., IN 18403 4550 4525 FPT-AS-AP FPT Telecom Company, VN 22773 4783 4420 ASN-CXA-ALL-CCI-22773-RDC - Cox Communications 7552 4064 4036 VIETEL-AS-AP Viettel Group, VN 20940 3919 3809 AKAMAI-ASN1, NL 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 395729 UNALLOCATED 8.28.58.0/24 32787 PROLEXIC-TECHNOLOGIES-D 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 22442 HOU-PHONOSCOPE - Phonos 395195 UNALLOCATED 8.38.115.0/24 3356 LEVEL3 - Level 3 Parent 1782 UNALLOCATED 8.42.19.0/24 3356 LEVEL3 - Level 3 Parent 13342 UNALLOCATED 12.17.5.0/24 174 COGENT-174 - Cogent Com 26345 UNALLOCATED 12.21.93.0/24 40264 TWC-40264-WI-MN-UPPERMI 396831 UNALLOCATED 12.23.198.0/24 7018 ATT-INTERNET4 - AT&T En 395476 UNALLOCATED 12.36.194.0/24 7018 ATT-INTERNET4 - AT&T En Complete listing at https://bgp.nsrc.org/REN/AARNET/data-badAS Advertised Unallocated Addresses -------------------------------- Unassigned Network ASN Information AS Name 23.137.48.0/24 Origin: 16904 ARVIG-16904 - Arvig Enterprises Inc., US 23.137.48.0/24 Transit: 174 COGENT-174 - Cogent Communications, LLC, 23.137.200.0/24 Origin: 16276 OVH, FR 23.137.200.0/24 Transit: 7575 AARNET-AS-AP Australian Academic and Res 23.138.188.0/24 Origin: 401371 DEEP-TO-ONE-INC - Deep To One Inc, ZZ 23.138.188.0/24 Transit: 154309 INTELLIGENT1-AS-AP Intelligent Cloud Lim 23.140.216.0/24 Origin: 27176 DATAWAGON - DataWagon LLC, US 23.140.216.0/24 Transit: 20278 NEXEON - Nexeon Technologies, Inc., US 23.141.0.0/24 Origin: 395350 RESERVED, ZZ 23.141.0.0/24 Transit: 11426 TWC-11426-CAROLINAS - Charter Communicat 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 /11:95 /12:297 /13:584 /14:1193 /15:2113 /16:13601 /17:8302 /18:13353 /19:25465 /20:45768 /21:52361 /22:113331 /23:107922 /24:660456 /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 6904 12644 UNINET, MX 12479 6096 7157 UNI2-AS, ES 39891 3660 4975 ALJAWWALSTC-AS, SA 6327 3498 3717 SHAW - Shaw Communications, CA 11492 3488 4612 CABLEONE - CABLE ONE, INC., US 22773 3060 4783 ASN-CXA-ALL-CCI-22773-RDC - Cox Communications Inc., US 7155 2825 3870 VIASAT-SP-BACKBONE - ViaSat,Inc., US 16509 2700 14962 AMAZON-02 - Amazon.com, Inc., US 30036 2264 2611 MEDIACOM-ENTERPRISE-BUSINESS - Mediacom Communications Corp, US 10620 2234 3430 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) ---------------------------------------------- 1:2490 2:2064 3:1005 4:5 5:5107 6:200 7:6 8:1471 9:59 11:172 12:1157 13:705 14:2710 15:465 16:208 17:441 18:920 20:608 21:4 22:188 23:8380 24:2772 25:2 27:2822 28:1 29:19 31:3557 32:36 34:88 35:284 36:4760 37:4443 38:9663 39:1296 40:438 41:4568 42:2171 43:3130 44:450 45:19794 46:4893 47:414 48:129 49:2233 50:2010 51:705 52:1324 54:286 55:1020 56:11 57:324 58:2340 59:1372 60:1175 61:3155 62:3133 63:1691 64:6382 65:2144 66:6115 67:3267 68:1502 69:4222 70:1053 71:616 72:3183 74:3066 75:1501 76:602 77:2939 78:2044 79:1794 80:2351 81:2239 82:4185 83:1459 84:2156 85:3835 86:1096 87:2495 88:1337 89:4775 90:810 91:8479 92:2790 93:3039 94:4393 95:4745 96:1445 97:311 98:946 99:835 100:71 101:1562 102:4549 103:32457 104:5374 105:856 106:899 107:2948 108:1274 109:4258 110:2282 111:4121 112:3180 113:1978 114:2382 115:2328 116:2140 117:3485 118:3042 119:2043 120:2729 121:1557 122:3012 123:2309 124:1657 125:2987 126:126 128:1607 129:978 130:1677 131:2420 132:888 133:485 134:1689 135:611 136:1480 137:1560 138:3400 139:1630 140:1773 141:1745 142:2568 143:2057 144:1782 145:639 146:2195 147:2260 148:2800 149:3138 150:1373 151:2907 152:2341 153:1620 154:9607 155:2301 156:5073 157:2337 158:1581 159:2872 160:3818 161:1966 162:4072 163:2567 164:2418 165:2673 166:1278 167:2316 168:4076 169:865 170:5617 171:1139 172:4799 173:3452 174:891 175:1351 176:3954 177:4845 178:4405 179:2346 180:3045 181:4570 182:4039 183:2840 184:2008 185:21927 186:6130 187:4973 188:4580 189:4503 190:9885 191:1678 192:11525 193:9644 194:7877 195:5839 196:3397 197:3226 198:6290 199:6056 200:8279 201:6373 202:10702 203:10679 204:4820 205:3731 206:4454 207:3982 208:4363 209:5472 210:4770 211:2690 212:5095 213:4142 214:1038 215:47 216:7298 217:3619 218:1709 219:413 220:2187 221:1319 222:935 223:3434 End of report