IPv4 R&E Routing Table Report 23:05 GMT Sat 22 Feb, 2025 IPv4 BGP Table (Global) as seen at Singapore. Report Website: https://bgp.nsrc.org/REN Detailed Analysis: https://bgp.nsrc.org/REN/Singapore/ Analysis Summary ---------------- BGP routing table entries examined: 972175 Prefixes after maximum aggregation (per Origin AS): 372382 Deaggregation factor: 2.61 Unique aggregates announced (without unneeded subnets): 475568 Number of IPv4 prefixes with a valid ROA: 530900 Number of IPv4 prefixes with an invalid ROA: 1209 Number of IPv4 prefixes with no ROA: 440066 Total ASes present in the Internet Routing Table: 76502 Prefixes per ASN: 12.71 Origin-only ASes present in the Internet Routing Table: 65641 Origin ASes announcing only one prefix: 26878 Transit ASes present in the Internet Routing Table: 10861 Transit-only ASes present in the Internet Routing Table: 526 Paths with bogon ASNs present in the IPv4 Routing Table: 11 Average AS path length visible in the Internet Routing Table: 4.7 Max AS path length visible: 70 Max AS path prepend of ASN ( 37447) 66 Prefixes from unregistered ASNs in the Routing Table: 1038 Number of instances of unregistered ASNs: 1043 Number of 32-bit ASNs allocated by the RIRs: 46175 Number of 32-bit ASNs visible in the Routing Table: 37822 Prefixes from 32-bit ASNs in the Routing Table: 198822 Number of bogon 32-bit ASNs visible in the Routing Table: 20 Special use prefixes present in the Routing Table: 0 Prefixes being announced from unallocated address space: 496 Number of addresses announced to Internet: 3112430592 Equivalent to 185 /8s, 131 /16s and 236 /24s Percentage of available address space announced: 84.1 Percentage of allocated address space announced: 84.1 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: 318826 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 254844 Total APNIC prefixes after maximum aggregation: 76146 APNIC Deaggregation factor: 3.35 Prefixes being announced from the APNIC address blocks: 246998 Unique aggregates announced from the APNIC address blocks: 102697 APNIC Region origin ASes present in the Internet Routing Table: 14487 APNIC Prefixes per ASN: 17.05 APNIC Region origin ASes announcing only one prefix: 4431 APNIC Region transit ASes present in the Internet Routing Table: 1947 Average APNIC Region AS path length visible: 4.3 Max APNIC Region AS path length visible: 34 Number of APNIC region 32-bit ASNs visible in the Routing Table: 10009 Number of APNIC addresses announced to Internet: 753231360 Equivalent to 44 /8s, 229 /16s and 102 /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: 286448 Total ARIN prefixes after maximum aggregation: 127416 ARIN Deaggregation factor: 2.25 Prefixes being announced from the ARIN address blocks: 288039 Unique aggregates announced from the ARIN address blocks: 135960 ARIN Region origin ASes present in the Internet Routing Table: 19182 ARIN Prefixes per ASN: 15.02 ARIN Region origin ASes announcing only one prefix: 7018 ARIN Region transit ASes present in the Internet Routing Table: 1923 Average ARIN Region AS path length visible: 4.5 Max ARIN Region AS path length visible: 26 Number of ARIN region 32-bit ASNs visible in the Routing Table: 5145 Number of ARIN addresses announced to Internet: 1348409088 Equivalent to 80 /8s, 95 /16s and 23 /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: 271662 Total RIPE prefixes after maximum aggregation: 132121 RIPE Deaggregation factor: 2.06 Prefixes being announced from the RIPE address blocks: 269081 Unique aggregates announced from the RIPE address blocks: 172708 RIPE Region origin ASes present in the Internet Routing Table: 28840 RIPE Prefixes per ASN: 9.33 RIPE Region origin ASes announcing only one prefix: 12065 RIPE Region transit ASes present in the Internet Routing Table: 3959 Average RIPE Region AS path length visible: 5.0 Max RIPE Region AS path length visible: 31 Number of RIPE region 32-bit ASNs visible in the Routing Table: 12267 Number of RIPE addresses announced to Internet: 732230144 Equivalent to 43 /8s, 164 /16s and 242 /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: 123097 Total LACNIC prefixes after maximum aggregation: 29243 LACNIC Deaggregation factor: 4.21 Prefixes being announced from the LACNIC address blocks: 120056 Unique aggregates announced from the LACNIC address blocks: 48833 LACNIC Region origin ASes present in the Internet Routing Table: 11193 LACNIC Prefixes per ASN: 10.73 LACNIC Region origin ASes announcing only one prefix: 2667 LACNIC Region transit ASes present in the Internet Routing Table: 2485 Average LACNIC Region AS path length visible: 5.3 Max LACNIC Region AS path length visible: 35 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 9131 Number of LACNIC addresses announced to Internet: 173808128 Equivalent to 10 /8s, 92 /16s and 26 /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: 35086 Total AfriNIC prefixes after maximum aggregation: 6810 AfriNIC Deaggregation factor: 5.15 Prefixes being announced from the AfriNIC address blocks: 47505 Unique aggregates announced from the AfriNIC address blocks: 14957 AfriNIC Region origin ASes present in the Internet Routing Table: 1912 AfriNIC Prefixes per ASN: 24.85 AfriNIC Region origin ASes announcing only one prefix: 697 AfriNIC Region transit ASes present in the Internet Routing Table: 368 Average AfriNIC Region AS path length visible: 5.5 Max AfriNIC Region AS path length visible: 70 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 1270 Number of AfriNIC addresses announced to Internet: 104492544 Equivalent to 6 /8s, 58 /16s and 110 /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 10335 8753 88 CHINAMOBILE-CN China Mobile Communication 7545 6214 844 661 TPG-INTERNET-AP TPG Telecom Limited, AU 18403 4271 347 25 FPT-AS-AP FPT Telecom Company, VN 9498 4240 530 275 BBIL-AP BHARTI Airtel Ltd., IN 7552 3919 1331 25 VIETEL-AS-AP Viettel Group, VN 7713 3685 1036 72 TELKOMNET-AS-AP PT Telekomunikasi Indones 45899 3262 1869 102 VNPT-AS-VN VNPT Corp, VN 24560 2846 854 531 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd., 45090 2207 1439 86 TENCENT-NET-AP Shenzhen Tencent Computer 4755 2164 434 195 TATACOMM-AS TATA Communications formerly Complete listing at https://bgp.nsrc.org/REN/Singapore/data-ASnet-APNIC ARIN Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 16509 12784 39189 3779 AMAZON-02, US 11492 4705 312 562 CABLEONE, US 7155 4175 286 83 VIASAT-SP-BACKBONE, US 6327 3623 1320 81 SHAW, CA 174 3520 8764 937 COGENT-174, US 22773 3369 3035 177 ASN-CXA-ALL-CCI-22773-RDC, US 749 3260 54879 2507 DNIC-AS-00749, US 396982 2931 3660 450 GOOGLE-CLOUD-PLATFORM, US 16625 2924 1249 2161 AKAMAI-AS, US 30036 2589 359 277 MEDIACOM-ENTERPRISE-BUSINESS, US Complete listing at https://bgp.nsrc.org/REN/Singapore/data-ASnet-ARIN RIPE Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 12479 7770 1714 145 UNI2-AS, ES 39891 4797 293 62 ALJAWWALSTC-AS, SA 20940 3888 3395 127 AKAMAI-ASN1, NL 9009 3731 320 1917 M247, RO 12389 2992 2303 892 ROSTELECOM-AS, RU 34984 2367 361 579 TELLCOM-AS, TR 212238 2017 147 1490 CDNEXT, GB 8452 1622 1852 14 TE-AS TE-AS, EG 13188 1606 100 34 TRIOLAN, UA 62240 1498 99 749 CLOUVIDER Clouvider - Global ASN, GB Complete listing at https://bgp.nsrc.org/REN/Singapore/data-ASnet-RIPE LACNIC Region per AS prefix count summary ----------------------------------------- ASN No of nets /20 equiv MaxAgg Description 8151 11768 3231 597 UNINET, MX 10620 3545 492 952 Telmex Colombia S.A., CO 13999 2515 541 366 Mega Cable, S.A. de C.V., MX 11830 1991 369 64 Instituto Costarricense de Electricidad y 28573 1351 2437 265 Claro NXT Telecomunicacoes Ltda, BR 3816 1329 777 211 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC, 6147 1156 371 22 Telefonica del Peru S.A.A., PE 6503 1130 374 163 Axtel, S.A.B. de C.V., MX 22884 1048 82 371 TOTAL PLAY TELECOMUNICACIONES SA DE CV, M 11664 1011 278 33 Techtel LMDS Comunicaciones Interactivas Complete listing at https://bgp.nsrc.org/REN/Singapore/data-ASnet-LACNIC AfriNIC Region per AS prefix count summary ------------------------------------------ ASN No of nets /20 equiv MaxAgg Description 24835 1683 599 30 RAYA-AS, EG 24863 1644 389 16 LINKdotNET-AS, EG 29571 1559 98 102 ORANGE-COTE-IVOIRE, CI 36992 1426 1518 286 ETISALAT-MISR, EG 36903 1249 554 96 MT-MPLS, MA 36935 997 521 42 Vodafone-, EG 20011 980 183 284 INTERNET-SOLUTIONS, ZA 37069 847 1083 15 MOBINIL, EG 6713 559 1861 35 IAM-AS, MA 36914 531 82 3 KENET-AS, KE Complete listing at https://bgp.nsrc.org/REN/Singapore/data-ASnet-AFRINIC Global Per AS prefix count summary ---------------------------------- ASN No of nets /20 equiv MaxAgg Description 16509 12784 39189 3779 AMAZON-02, US 8151 11768 3231 597 UNINET, MX 9808 10335 8753 88 CHINAMOBILE-CN China Mobile Communication 12479 7770 1714 145 UNI2-AS, ES 7545 6214 844 661 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4797 293 62 ALJAWWALSTC-AS, SA 11492 4705 312 562 CABLEONE, US 18403 4271 347 25 FPT-AS-AP FPT Telecom Company, VN 9498 4240 530 275 BBIL-AP BHARTI Airtel Ltd., IN 7155 4175 286 83 VIASAT-SP-BACKBONE, US Complete listing at https://bgp.nsrc.org/REN/Singapore/data-ASnet Global Per AS Maximum Aggregation summary ----------------------------------------- ASN No of nets Net Savings Description 8151 11768 11171 UNINET, MX 9808 10335 10247 CHINAMOBILE-CN China Mobile Communications Grou 12479 7770 7625 UNI2-AS, ES 7545 6214 5553 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4797 4735 ALJAWWALSTC-AS, SA 18403 4271 4246 FPT-AS-AP FPT Telecom Company, VN 11492 4705 4143 CABLEONE, US 7155 4175 4092 VIASAT-SP-BACKBONE, US 9498 4240 3965 BBIL-AP BHARTI Airtel Ltd., IN 7552 3919 3894 VIETEL-AS-AP Viettel Group, VN Complete listing at https://bgp.nsrc.org/REN/Singapore/data-CIDRnet List of Unregistered Origin ASNs (Global) ----------------------------------------- Bad AS Designation Net Originated Transit AS Transit AS Name 400866 UNALLOCATED 2.59.148.0/23 21859 ZEN-ECN, US 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 Complete listing at https://bgp.nsrc.org/REN/Singapore/data-badAS 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: 3491 CONSOLE-CONNECT-ASN, US 23.140.16.0/24 Origin: 63371 RESERVED, ZZ 23.140.16.0/24 Transit: 3356 LEVEL3, US 23.140.48.0/24 Origin: 63371 RESERVED, ZZ 23.140.48.0/24 Transit: 7018 ATT-INTERNET4, 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 Complete listing at https://bgp.nsrc.org/REN/Singapore/data-add-IANA Number of prefixes announced per prefix length (Global) ------------------------------------------------------- /1:0 /2:0 /3:0 /4:0 /5:0 /6:0 /7:0 /8:16 /9:16 /10:42 /11:92 /12:307 /13:584 /14:1214 /15:2140 /16:13901 /17:8237 /18:13617 /19:24443 /20:43755 /21:51751 /22:111944 /23:100604 /24:599512 /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 6723 7770 UNI2-AS, ES 8151 5970 11768 UNINET, MX 11492 3556 4705 CABLEONE, US 39891 3489 4797 ALJAWWALSTC-AS, SA 6327 3418 3623 SHAW, CA 7155 3121 4175 VIASAT-SP-BACKBONE, US 22773 2509 3369 ASN-CXA-ALL-CCI-22773-RDC, US 16509 2276 12784 AMAZON-02, US 30036 2249 2589 MEDIACOM-ENTERPRISE-BUSINESS, US 10620 2185 3545 Telmex Colombia S.A., CO Complete listing at https://bgp.nsrc.org/REN/Singapore/data-sXXas-nos Number of /24s announced per /8 block (Global) ---------------------------------------------- 1:2305 2:1500 3:571 4:10 5:4515 6:165 7:6 8:1549 9:1 11:172 12:1380 13:349 14:2510 15:347 16:273 17:356 18:917 20:450 21:4 22:188 23:7280 24:2726 25:2 27:2697 29:19 31:3144 32:35 34:81 35:201 36:2408 37:4596 38:8614 39:896 40:157 41:4181 42:1936 43:2520 44:350 45:18251 46:4964 47:291 49:1976 50:1885 51:590 52:1570 54:300 55:1087 56:9 57:240 58:2224 59:1215 60:1167 61:2840 62:2944 63:1826 64:5504 65:2193 66:4603 67:3029 68:1124 69:3971 70:1105 71:608 72:2868 74:2777 75:1647 76:612 77:2663 78:1853 79:1727 80:2207 81:2026 82:2616 83:1408 84:1793 85:3351 86:1023 87:2156 88:1280 89:4311 90:762 91:8313 92:2798 93:2860 94:3913 95:4204 96:1362 97:318 98:979 99:741 100:71 101:1382 102:3681 103:32350 104:4801 105:743 106:990 107:2588 108:1199 109:4084 110:2226 111:3317 112:2048 113:1803 114:1942 115:2123 116:2039 117:2747 118:2879 119:1945 120:1875 121:1354 122:2750 123:2164 124:1603 125:2885 126:94 128:1553 129:948 130:1268 131:1840 132:788 133:450 134:1528 135:325 136:1330 137:1105 138:2880 139:1616 140:1562 141:1478 142:1826 143:1599 144:1065 145:466 146:2126 147:2064 148:2582 149:2865 150:1232 151:1685 152:2101 153:504 154:7606 155:1604 156:3164 157:1891 158:1250 159:2424 160:3567 161:1886 162:3684 163:1826 164:1682 165:2182 166:1348 167:1875 168:4031 169:790 170:5067 171:1002 172:4339 173:3241 174:916 175:1278 176:3620 177:4717 178:3768 179:2234 180:2563 181:4000 182:3368 183:2043 184:2296 185:21455 186:5094 187:4304 188:4210 189:4179 190:9615 191:1529 192:11143 193:9372 194:7746 195:5478 196:3275 197:3766 198:6053 199:8337 200:8031 201:6297 202:10333 203:10525 204:4529 205:3657 206:4573 207:3455 208:4187 209:5140 210:4545 211:2528 212:4515 213:3730 214:1054 215:42 216:6575 217:3099 218:1336 219:376 220:2115 221:1052 222:717 223:2319 End of report