IPv4 R&E Routing Table Report 21:10 GMT Fri 23 Jan, 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: 1028588 Prefixes after maximum aggregation (per Origin AS): 395488 Deaggregation factor: 2.60 Unique aggregates announced (without unneeded subnets): 507876 Number of IPv4 prefixes with a valid ROA: 614086 Number of IPv4 prefixes with an invalid ROA: 107 Number of IPv4 prefixes with no ROA: 414394 Total ASes present in the Internet Routing Table: 77820 Prefixes per ASN: 13.22 Origin-only ASes present in the Internet Routing Table: 66596 Origin ASes announcing only one prefix: 27200 Transit ASes present in the Internet Routing Table: 11224 Transit-only ASes present in the Internet Routing Table: 572 Paths with bogon ASNs present in the IPv4 Routing Table: 19 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: 1051 Number of instances of unregistered ASNs: 1092 Number of 32-bit ASNs allocated by the RIRs: 48462 Number of 32-bit ASNs visible in the Routing Table: 39704 Prefixes from 32-bit ASNs in the Routing Table: 220646 Number of bogon 32-bit ASNs visible in the Routing Table: 96 Special use prefixes present in the Routing Table: 0 Prefixes being announced from unallocated address space: 472 Number of addresses announced to Internet: 3106065920 Equivalent to 185 /8s, 34 /16s and 206 /24s Percentage of available address space announced: 83.9 Percentage of allocated address space announced: 83.9 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: 334952 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 279951 Total APNIC prefixes after maximum aggregation: 81998 APNIC Deaggregation factor: 3.41 Prefixes being announced from the APNIC address blocks: 266138 Unique aggregates announced from the APNIC address blocks: 107063 APNIC Region origin ASes present in the Internet Routing Table: 15007 APNIC Prefixes per ASN: 17.73 APNIC Region origin ASes announcing only one prefix: 4594 APNIC Region transit ASes present in the Internet Routing Table: 2011 Average APNIC Region AS path length visible: 4.1 Max APNIC Region AS path length visible: 34 Number of APNIC region 32-bit ASNs visible in the Routing Table: 10573 Number of APNIC addresses announced to Internet: 753578496 Equivalent to 44 /8s, 234 /16s and 178 /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: 301538 Total ARIN prefixes after maximum aggregation: 135426 ARIN Deaggregation factor: 2.23 Prefixes being announced from the ARIN address blocks: 301420 Unique aggregates announced from the ARIN address blocks: 146224 ARIN Region origin ASes present in the Internet Routing Table: 19399 ARIN Prefixes per ASN: 15.54 ARIN Region origin ASes announcing only one prefix: 7073 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: 35 Number of ARIN region 32-bit ASNs visible in the Routing Table: 5452 Number of ARIN addresses announced to Internet: 1343951872 Equivalent to 80 /8s, 27 /16s and 20 /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: 283248 Total RIPE prefixes after maximum aggregation: 139972 RIPE Deaggregation factor: 2.02 Prefixes being announced from the RIPE address blocks: 285164 Unique aggregates announced from the RIPE address blocks: 184963 RIPE Region origin ASes present in the Internet Routing Table: 29146 RIPE Prefixes per ASN: 9.78 RIPE Region origin ASes announcing only one prefix: 12104 RIPE Region transit ASes present in the Internet Routing Table: 4061 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: 12946 Number of RIPE addresses announced to Internet: 734273024 Equivalent to 43 /8s, 196 /16s and 30 /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: 126294 Total LACNIC prefixes after maximum aggregation: 30483 LACNIC Deaggregation factor: 4.14 Prefixes being announced from the LACNIC address blocks: 121913 Unique aggregates announced from the LACNIC address blocks: 49751 LACNIC Region origin ASes present in the Internet Routing Table: 11358 LACNIC Prefixes per ASN: 10.73 LACNIC Region origin ASes announcing only one prefix: 2686 LACNIC Region transit ASes present in the Internet Routing Table: 2571 Average LACNIC Region AS path length visible: 5.2 Max LACNIC Region AS path length visible: 68 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 9355 Number of LACNIC addresses announced to Internet: 170551552 Equivalent to 10 /8s, 42 /16s and 105 /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: 36506 Total AfriNIC prefixes after maximum aggregation: 6930 AfriNIC Deaggregation factor: 5.27 Prefixes being announced from the AfriNIC address blocks: 53480 Unique aggregates announced from the AfriNIC address blocks: 19471 AfriNIC Region origin ASes present in the Internet Routing Table: 2015 AfriNIC Prefixes per ASN: 26.54 AfriNIC Region origin ASes announcing only one prefix: 743 AfriNIC Region transit ASes present in the Internet Routing Table: 386 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: 1378 Number of AfriNIC addresses announced to Internet: 103426048 Equivalent to 6 /8s, 42 /16s and 40 /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 13523 8729 120 CHINAMOBILE-CN China Mobile Communication 7545 6025 833 575 TPG-INTERNET-AP TPG Telecom Limited, AU 9498 4702 543 339 BBIL-AP BHARTI Airtel Ltd., IN 18403 4398 347 24 FPT-AS-AP FPT Telecom Company, VN 7552 4050 1332 29 VIETEL-AS-AP Viettel Group, VN 7713 3729 1044 65 TELKOMNET-AS-AP PT Telekomunikasi Indones 56046 3418 831 182 CMNET-JIANGSU-AP China Mobile communicati 45899 3321 1868 96 VNPT-AS-VN VNPT Corp, VN 17561 3194 200 625 LCS-AS-AP LARUS Limited, HK 24560 2959 865 505 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 14005 38810 5447 AMAZON-02 - Amazon.com, Inc., US 22773 4780 3115 365 ASN-CXA-ALL-CCI-22773-RDC - Cox Communica 11492 4638 308 1020 CABLEONE - CABLE ONE, INC., US 7155 3858 286 85 VIASAT-SP-BACKBONE - ViaSat,Inc., US 6327 3698 1321 71 SHAW - Shaw Communications, CA 396982 3330 4868 500 GOOGLE-CLOUD-PLATFORM - Google LLC, US 749 3142 54729 2393 DNIC-AS-00749 - United States Department 174 3099 8766 842 COGENT-174 - Cogent Communications, LLC, 16625 2948 1274 2171 AKAMAI-AS - Akamai Technologies, Inc., US 36352 2695 222 902 AS-COLOCROSSING - HostPapa, 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 7238 1711 149 UNI2-AS, ES 39891 4969 306 72 ALJAWWALSTC-AS, SA 20940 3943 3393 113 AKAMAI-ASN1, NL 9009 3914 366 2237 M247, RO 12389 3152 2317 871 ROSTELECOM-AS PJSC Rostelecom. Technical 212238 2563 182 1860 CDNEXT, GB 34984 2425 364 577 TELLCOM-AS, TR 8452 1712 1852 14 TE-AS TE-AS, EG 203020 1612 243 784 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 12675 3304 603 UNINET, MX 10620 3445 457 1107 Telmex Colombia S.A., CO 13999 2484 508 351 Mega Cable, S.A. de C.V., MX 11830 1991 369 65 Instituto Costarricense de Electricidad y 11664 1396 278 31 Techtel LMDS Comunicaciones Interactivas 28573 1375 2430 272 Claro NXT Telecomunicacoes Ltda, BR 3816 1339 770 213 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC, 6147 1258 371 22 INTEGRATEL PERU S.A.A., PE 22884 1056 67 358 TOTAL PLAY TELECOMUNICACIONES SA DE CV, M 26615 1016 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 1983 646 33 RAYA-AS, EG 36992 1842 1532 339 ETISALAT-MISR, EG 24863 1279 389 16 LINKdotNET-AS, EG 36903 1232 555 98 MT-MPLS, MA 36935 1126 520 42 Vodafone-, EG 37069 1115 1100 11 MOBINIL, EG 29571 1070 78 20 ORANGE-COTE-IVOIRE, CI 20011 580 154 212 NTT-DATA-Inc, ZA 328608 571 53 165 Africa-on-Cloud-AS, ZA 36914 569 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 14005 38810 5447 AMAZON-02 - Amazon.com, Inc., US 9808 13523 8729 120 CHINAMOBILE-CN China Mobile Communication 8151 12675 3304 603 UNINET, MX 12479 7238 1711 149 UNI2-AS, ES 7545 6025 833 575 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4969 306 72 ALJAWWALSTC-AS, SA 22773 4780 3115 365 ASN-CXA-ALL-CCI-22773-RDC - Cox Communica 9498 4702 543 339 BBIL-AP BHARTI Airtel Ltd., IN 11492 4638 308 1020 CABLEONE - CABLE ONE, INC., US 18403 4398 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 13523 13403 CHINAMOBILE-CN China Mobile Communications Grou 8151 12675 12072 UNINET, MX 12479 7238 7089 UNI2-AS, ES 7545 6025 5450 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4969 4897 ALJAWWALSTC-AS, SA 22773 4780 4415 ASN-CXA-ALL-CCI-22773-RDC - Cox Communications 18403 4398 4374 FPT-AS-AP FPT Telecom Company, VN 9498 4702 4363 BBIL-AP BHARTI Airtel Ltd., IN 7552 4050 4021 VIETEL-AS-AP Viettel Group, VN 20940 3943 3830 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 204464 UNALLOCATED 5.175.223.0/24 211066 RYZEHOSTING-TRADING, AT 393266 UNALLOCATED 8.23.52.0/24 46887 CROWNCASTLE-AS46887 - C 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: 3257 GTT-BACKBONE GTT, US 23.137.200.0/24 Origin: 16276 OVH, FR 23.137.200.0/24 Transit: 7575 AARNET-AS-AP Australian Academic and Res 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 23.142.24.0/24 Origin: 62164 HEYMMAN-2, CA 23.142.24.0/24 Transit: 64236 UNREAL-SERVERS - UnReal Servers, LLC, 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 /9:14 /10:40 /11:93 /12:302 /13:582 /14:1204 /15:2094 /16:13702 /17:8254 /18:13553 /19:24878 /20:44896 /21:52260 /22:113424 /23:106322 /24:646953 /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 6835 12675 UNINET, MX 12479 6168 7238 UNI2-AS, ES 39891 3655 4969 ALJAWWALSTC-AS, SA 11492 3498 4638 CABLEONE - CABLE ONE, INC., US 6327 3479 3698 SHAW - Shaw Communications, CA 22773 3051 4780 ASN-CXA-ALL-CCI-22773-RDC - Cox Communications Inc., US 7155 2817 3858 VIASAT-SP-BACKBONE - ViaSat,Inc., US 16509 2475 14005 AMAZON-02 - Amazon.com, Inc., US 30036 2305 2646 MEDIACOM-ENTERPRISE-BUSINESS - Mediacom Communications Corp, US 10620 2225 3445 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) ---------------------------------------------- 1:2498 2:1543 3:965 4:9 5:5008 6:186 7:6 8:1507 9:14 11:172 12:1227 13:620 14:2636 15:415 16:179 17:391 18:917 20:597 21:4 22:188 23:8189 24:2626 25:2 27:2834 29:19 31:3430 32:31 34:81 35:289 36:4639 37:4525 38:9870 39:1254 40:439 41:4539 42:1962 43:2929 44:419 45:19681 46:4960 47:400 48:20 49:2193 50:2062 51:598 52:1257 54:238 55:1126 56:11 57:310 58:2323 59:1341 60:1172 61:3107 62:3108 63:1772 64:6200 65:2127 66:6007 67:3256 68:1485 69:4209 70:1023 71:626 72:3086 74:2966 75:1513 76:605 77:2754 78:1920 79:1806 80:2304 81:2128 82:4041 83:1473 84:2026 85:3687 86:1104 87:2252 88:1340 89:4657 90:821 91:8410 92:2861 93:3018 94:4286 95:4529 96:1450 97:313 98:954 99:782 100:69 101:1550 102:4371 103:32343 104:5455 105:793 106:916 107:2823 108:1226 109:4247 110:2304 111:4050 112:3119 113:1933 114:2168 115:2306 116:2163 117:3305 118:2985 119:2086 120:2593 121:1530 122:2959 123:2312 124:1605 125:2954 126:125 128:1681 129:951 130:1577 131:2300 132:771 133:461 134:1616 135:539 136:1630 137:1483 138:2989 139:1619 140:1764 141:1561 142:2467 143:2159 144:1573 145:628 146:2200 147:2282 148:2811 149:2936 150:1324 151:2631 152:2278 153:918 154:9636 155:2305 156:4821 157:2266 158:1497 159:2755 160:3740 161:2005 162:4025 163:2337 164:1970 165:2638 166:1294 167:2214 168:3934 169:908 170:5473 171:1121 172:4589 173:3427 174:890 175:1344 176:3776 177:4724 178:4323 179:2288 180:2990 181:4387 182:3902 183:2750 184:2029 185:21731 186:5563 187:4863 188:4618 189:4462 190:9669 191:1522 192:11478 193:9505 194:7852 195:5683 196:3279 197:3188 198:6228 199:6116 200:8192 201:6396 202:10620 203:10657 204:4731 205:3771 206:4412 207:3964 208:4374 209:5462 210:4806 211:2686 212:4966 213:4059 214:1061 215:54 216:7142 217:3460 218:1622 219:419 220:2188 221:1316 222:907 223:3277 End of report