IPv4 R&E Routing Table Report 23:05 GMT Tue 01 Apr, 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: 973908 Prefixes after maximum aggregation (per Origin AS): 374327 Deaggregation factor: 2.60 Unique aggregates announced (without unneeded subnets): 476191 Number of IPv4 prefixes with a valid ROA: 536264 Number of IPv4 prefixes with an invalid ROA: 671 Number of IPv4 prefixes with no ROA: 436973 Total ASes present in the Internet Routing Table: 76576 Prefixes per ASN: 12.72 Origin-only ASes present in the Internet Routing Table: 65710 Origin ASes announcing only one prefix: 26890 Transit ASes present in the Internet Routing Table: 10866 Transit-only ASes present in the Internet Routing Table: 533 Paths with bogon ASNs present in the IPv4 Routing Table: 11 Average AS path length visible in the Internet Routing Table: 4.8 Max AS path length visible: 70 Max AS path prepend of ASN ( 37447) 66 Prefixes from unregistered ASNs in the Routing Table: 1023 Number of instances of unregistered ASNs: 1027 Number of 32-bit ASNs allocated by the RIRs: 46115 Number of 32-bit ASNs visible in the Routing Table: 37985 Prefixes from 32-bit ASNs in the Routing Table: 199803 Number of bogon 32-bit ASNs visible in the Routing Table: 14 Special use prefixes present in the Routing Table: 0 Prefixes being announced from unallocated address space: 464 Number of addresses announced to Internet: 3107126528 Equivalent to 185 /8s, 50 /16s and 253 /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: 320033 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 254859 Total APNIC prefixes after maximum aggregation: 76365 APNIC Deaggregation factor: 3.34 Prefixes being announced from the APNIC address blocks: 246624 Unique aggregates announced from the APNIC address blocks: 102657 APNIC Region origin ASes present in the Internet Routing Table: 14510 APNIC Prefixes per ASN: 17.00 APNIC Region origin ASes announcing only one prefix: 4443 APNIC Region transit ASes present in the Internet Routing Table: 1952 Average APNIC Region AS path length visible: 4.5 Max APNIC Region AS path length visible: 56 Number of APNIC region 32-bit ASNs visible in the Routing Table: 10044 Number of APNIC addresses announced to Internet: 748675072 Equivalent to 44 /8s, 159 /16s and 224 /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: 287538 Total ARIN prefixes after maximum aggregation: 128450 ARIN Deaggregation factor: 2.24 Prefixes being announced from the ARIN address blocks: 288734 Unique aggregates announced from the ARIN address blocks: 137156 ARIN Region origin ASes present in the Internet Routing Table: 19194 ARIN Prefixes per ASN: 15.04 ARIN Region origin ASes announcing only one prefix: 7035 ARIN Region transit ASes present in the Internet Routing Table: 1900 Average ARIN Region AS path length visible: 4.5 Max ARIN Region AS path length visible: 35 Number of ARIN region 32-bit ASNs visible in the Routing Table: 5161 Number of ARIN addresses announced to Internet: 1349710336 Equivalent to 80 /8s, 114 /16s and 242 /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: 272286 Total RIPE prefixes after maximum aggregation: 132926 RIPE Deaggregation factor: 2.05 Prefixes being announced from the RIPE address blocks: 270355 Unique aggregates announced from the RIPE address blocks: 173530 RIPE Region origin ASes present in the Internet Routing Table: 28855 RIPE Prefixes per ASN: 9.37 RIPE Region origin ASes announcing only one prefix: 12046 RIPE Region transit ASes present in the Internet Routing Table: 3976 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: 12343 Number of RIPE addresses announced to Internet: 731992320 Equivalent to 43 /8s, 161 /16s and 81 /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: 123303 Total LACNIC prefixes after maximum aggregation: 29242 LACNIC Deaggregation factor: 4.22 Prefixes being announced from the LACNIC address blocks: 119990 Unique aggregates announced from the LACNIC address blocks: 48814 LACNIC Region origin ASes present in the Internet Routing Table: 11213 LACNIC Prefixes per ASN: 10.70 LACNIC Region origin ASes announcing only one prefix: 2667 LACNIC Region transit ASes present in the Internet Routing Table: 2464 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: 9165 Number of LACNIC addresses announced to Internet: 171652608 Equivalent to 10 /8s, 59 /16s and 54 /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: 34899 Total AfriNIC prefixes after maximum aggregation: 6712 AfriNIC Deaggregation factor: 5.20 Prefixes being announced from the AfriNIC address blocks: 47741 Unique aggregates announced from the AfriNIC address blocks: 13635 AfriNIC Region origin ASes present in the Internet Routing Table: 1905 AfriNIC Prefixes per ASN: 25.06 AfriNIC Region origin ASes announcing only one prefix: 699 AfriNIC Region transit ASes present in the Internet Routing Table: 377 Average AfriNIC Region AS path length visible: 5.6 Max AfriNIC Region AS path length visible: 70 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 1272 Number of AfriNIC addresses announced to Internet: 104861952 Equivalent to 6 /8s, 64 /16s and 17 /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 10306 8753 89 CHINAMOBILE-CN China Mobile Communication 7545 6220 843 657 TPG-INTERNET-AP TPG Telecom Limited, AU 9498 4251 530 276 BBIL-AP BHARTI Airtel Ltd., IN 18403 4220 347 25 FPT-AS-AP FPT Telecom Company, VN 7552 3916 1332 26 VIETEL-AS-AP Viettel Group, VN 7713 3673 1044 66 TELKOMNET-AS-AP PT Telekomunikasi Indones 45899 3265 1869 103 VNPT-AS-VN VNPT Corp, VN 24560 2846 848 538 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd., 45090 2205 1439 86 TENCENT-NET-AP Shenzhen Tencent Computer 4755 2173 434 197 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 13004 39644 4006 AMAZON-02, US 11492 4677 310 583 CABLEONE, US 7155 4173 286 83 VIASAT-SP-BACKBONE, US 174 3632 8765 954 COGENT-174, US 6327 3622 1320 81 SHAW, CA 22773 3386 3036 183 ASN-CXA-ALL-CCI-22773-RDC, US 749 3255 54879 2506 DNIC-AS-00749, US 16625 2983 1250 2201 AKAMAI-AS, US 396982 2948 3649 465 GOOGLE-CLOUD-PLATFORM, US 36352 2622 216 800 AS-COLOCROSSING, 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 7713 1714 145 UNI2-AS, ES 39891 4729 285 63 ALJAWWALSTC-AS, SA 20940 3898 3395 125 AKAMAI-ASN1, NL 9009 3759 325 1956 M247, RO 12389 3037 2303 888 ROSTELECOM-AS, RU 34984 2365 360 583 TELLCOM-AS, TR 212238 2070 147 1527 CDNEXT, GB 13188 1606 100 34 TRIOLAN, UA 8452 1512 1852 14 TE-AS TE-AS, EG 62240 1491 98 749 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 11804 3243 582 UNINET, MX 10620 3521 486 970 Telmex Colombia S.A., CO 13999 2508 539 367 Mega Cable, S.A. de C.V., MX 11830 1991 369 64 Instituto Costarricense de Electricidad y 28573 1352 2437 265 Claro NXT Telecomunicacoes Ltda, BR 3816 1332 783 210 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC, 6147 1194 371 21 Telefonica del Peru S.A.A., PE 11664 1135 278 33 Techtel LMDS Comunicaciones Interactivas 22884 1050 67 378 TOTAL PLAY TELECOMUNICACIONES SA DE CV, M 6503 1049 374 163 Axtel, S.A.B. de C.V., MX 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 1703 599 30 RAYA-AS, EG 24863 1620 389 18 LINKdotNET-AS, EG 29571 1566 102 23 ORANGE-COTE-IVOIRE, CI 36992 1426 1518 287 ETISALAT-MISR, EG 36903 1249 554 96 MT-MPLS, MA 36935 1006 521 42 Vodafone-, EG 20011 981 185 285 INTERNET-SOLUTIONS, ZA 37069 915 1083 15 MOBINIL, EG 6713 561 1861 35 IAM-AS, MA 3741 517 661 317 IS, ZA 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 13004 39644 4006 AMAZON-02, US 8151 11804 3243 582 UNINET, MX 9808 10306 8753 89 CHINAMOBILE-CN China Mobile Communication 12479 7713 1714 145 UNI2-AS, ES 7545 6220 843 657 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4729 285 63 ALJAWWALSTC-AS, SA 11492 4677 310 583 CABLEONE, US 9498 4251 530 276 BBIL-AP BHARTI Airtel Ltd., IN 18403 4220 347 25 FPT-AS-AP FPT Telecom Company, VN 7155 4173 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 11804 11222 UNINET, MX 9808 10306 10217 CHINAMOBILE-CN China Mobile Communications Grou 12479 7713 7568 UNI2-AS, ES 7545 6220 5563 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4729 4666 ALJAWWALSTC-AS, SA 18403 4220 4195 FPT-AS-AP FPT Telecom Company, VN 11492 4677 4094 CABLEONE, US 7155 4173 4090 VIASAT-SP-BACKBONE, US 9498 4251 3975 BBIL-AP BHARTI Airtel Ltd., IN 7552 3916 3890 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 212032 UNALLOCATED 5.59.105.0/24 35168 TNS-PLUS-CORE, KZ 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 23.136.188.0/24 Origin: 214483 FIBERPOWER-AS, US 23.136.188.0/24 Transit: 26042 FIBERSTATE, 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 23.152.48.0/24 Origin: 46167 RESERVED, ZZ 23.152.48.0/24 Transit: 7018 ATT-INTERNET4, US Complete listing at https://bgp.nsrc.org/REN/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 /10:41 /11:93 /12:302 /13:579 /14:1217 /15:2142 /16:13897 /17:8219 /18:13652 /19:24467 /20:43574 /21:51531 /22:111662 /23:100823 /24:601677 /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 6639 7713 UNI2-AS, ES 8151 6032 11804 UNINET, MX 11492 3530 4677 CABLEONE, US 39891 3488 4729 ALJAWWALSTC-AS, SA 6327 3417 3622 SHAW, CA 7155 3120 4173 VIASAT-SP-BACKBONE, US 22773 2521 3386 ASN-CXA-ALL-CCI-22773-RDC, US 16509 2336 13004 AMAZON-02, US 30036 2200 2539 MEDIACOM-ENTERPRISE-BUSINESS, US 10620 2183 3521 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) ---------------------------------------------- 1:2338 2:1505 3:605 4:10 5:4586 6:163 7:6 8:1549 9:1 11:172 12:1372 13:355 14:2515 15:351 16:279 17:361 18:917 20:463 21:4 22:188 23:7308 24:2824 25:2 27:2703 29:19 31:3219 32:37 34:83 35:204 36:2396 37:4668 38:8906 39:899 40:154 41:4055 42:1902 43:2549 44:360 45:18417 46:4919 47:288 49:1961 50:1898 51:590 52:1553 54:302 55:878 56:11 57:249 58:2190 59:1237 60:1171 61:2813 62:2913 63:1826 64:5487 65:2178 66:4592 67:3037 68:1118 69:3971 70:1100 71:612 72:2844 74:2796 75:1660 76:612 77:2708 78:1870 79:1726 80:2191 81:2013 82:3049 83:1415 84:1827 85:3371 86:1042 87:2146 88:1279 89:4329 90:777 91:8314 92:2796 93:2877 94:4034 95:4296 96:1435 97:312 98:991 99:739 100:71 101:1394 102:3712 103:32145 104:4806 105:749 106:988 107:2592 108:1202 109:4085 110:2230 111:3328 112:2040 113:1793 114:1965 115:2110 116:2034 117:2731 118:2823 119:1939 120:1870 121:1361 122:2740 123:2160 124:1610 125:2848 126:88 128:1546 129:946 130:1263 131:1892 132:775 133:451 134:1528 135:329 136:1281 137:1102 138:2894 139:1618 140:1566 141:1484 142:1831 143:1663 144:1065 145:515 146:2150 147:2099 148:2644 149:2887 150:1247 151:1735 152:2095 153:505 154:7863 155:1622 156:2986 157:1892 158:1269 159:2426 160:3549 161:1927 162:3712 163:1961 164:1691 165:2202 166:1430 167:1883 168:4033 169:784 170:5088 171:1002 172:4457 173:3218 174:908 175:1285 176:3686 177:4713 178:3814 179:2313 180:2566 181:4055 182:3366 183:2032 184:2292 185:21466 186:5109 187:4382 188:4198 189:4141 190:9631 191:1522 192:11153 193:9415 194:7784 195:5515 196:3287 197:3702 198:6053 199:8401 200:8053 201:6300 202:10312 203:10510 204:4522 205:3634 206:4568 207:3436 208:4184 209:5140 210:4497 211:2532 212:4488 213:3758 214:1048 215:48 216:6584 217:3069 218:1328 219:378 220:2092 221:1070 222:711 223:2318 End of report