IPv4 R&E Routing Table Report 23:05 GMT Thu 27 Mar, 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: 975795 Prefixes after maximum aggregation (per Origin AS): 374191 Deaggregation factor: 2.61 Unique aggregates announced (without unneeded subnets): 476069 Number of IPv4 prefixes with a valid ROA: 536574 Number of IPv4 prefixes with an invalid ROA: 984 Number of IPv4 prefixes with no ROA: 438237 Total ASes present in the Internet Routing Table: 76556 Prefixes per ASN: 12.75 Origin-only ASes present in the Internet Routing Table: 65706 Origin ASes announcing only one prefix: 26855 Transit ASes present in the Internet Routing Table: 10850 Transit-only ASes present in the Internet Routing Table: 531 Paths with bogon ASNs present in the IPv4 Routing Table: 9 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: 1022 Number of instances of unregistered ASNs: 1026 Number of 32-bit ASNs allocated by the RIRs: 46099 Number of 32-bit ASNs visible in the Routing Table: 37961 Prefixes from 32-bit ASNs in the Routing Table: 199677 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: 460 Number of addresses announced to Internet: 3108076032 Equivalent to 185 /8s, 65 /16s and 122 /24s Percentage of available address space announced: 84.0 Percentage of allocated address space announced: 84.0 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: 320325 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 255236 Total APNIC prefixes after maximum aggregation: 76297 APNIC Deaggregation factor: 3.35 Prefixes being announced from the APNIC address blocks: 247014 Unique aggregates announced from the APNIC address blocks: 102614 APNIC Region origin ASes present in the Internet Routing Table: 14510 APNIC Prefixes per ASN: 17.02 APNIC Region origin ASes announcing only one prefix: 4413 APNIC Region transit ASes present in the Internet Routing Table: 1947 Average APNIC Region AS path length visible: 4.5 Max APNIC Region AS path length visible: 49 Number of APNIC region 32-bit ASNs visible in the Routing Table: 10045 Number of APNIC addresses announced to Internet: 748891648 Equivalent to 44 /8s, 163 /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: 288629 Total ARIN prefixes after maximum aggregation: 128496 ARIN Deaggregation factor: 2.25 Prefixes being announced from the ARIN address blocks: 289215 Unique aggregates announced from the ARIN address blocks: 136891 ARIN Region origin ASes present in the Internet Routing Table: 19195 ARIN Prefixes per ASN: 15.07 ARIN Region origin ASes announcing only one prefix: 7033 ARIN Region transit ASes present in the Internet Routing Table: 1906 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: 5161 Number of ARIN addresses announced to Internet: 1350202880 Equivalent to 80 /8s, 122 /16s and 118 /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: 272020 Total RIPE prefixes after maximum aggregation: 132798 RIPE Deaggregation factor: 2.05 Prefixes being announced from the RIPE address blocks: 270391 Unique aggregates announced from the RIPE address blocks: 173688 RIPE Region origin ASes present in the Internet Routing Table: 28838 RIPE Prefixes per ASN: 9.38 RIPE Region origin ASes announcing only one prefix: 12054 RIPE Region transit ASes present in the Internet Routing Table: 3972 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: 12326 Number of RIPE addresses announced to Internet: 732217088 Equivalent to 43 /8s, 164 /16s and 191 /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: 123546 Total LACNIC prefixes after maximum aggregation: 29246 LACNIC Deaggregation factor: 4.22 Prefixes being announced from the LACNIC address blocks: 120219 Unique aggregates announced from the LACNIC address blocks: 48824 LACNIC Region origin ASes present in the Internet Routing Table: 11210 LACNIC Prefixes per ASN: 10.72 LACNIC Region origin ASes announcing only one prefix: 2663 LACNIC Region transit ASes present in the Internet Routing Table: 2461 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: 9157 Number of LACNIC addresses announced to Internet: 171606784 Equivalent to 10 /8s, 58 /16s and 131 /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: 35342 Total AfriNIC prefixes after maximum aggregation: 6725 AfriNIC Deaggregation factor: 5.26 Prefixes being announced from the AfriNIC address blocks: 48496 Unique aggregates announced from the AfriNIC address blocks: 13658 AfriNIC Region origin ASes present in the Internet Routing Table: 1908 AfriNIC Prefixes per ASN: 25.42 AfriNIC Region origin ASes announcing only one prefix: 692 AfriNIC Region transit ASes present in the Internet Routing Table: 374 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: 1272 Number of AfriNIC addresses announced to Internet: 104923648 Equivalent to 6 /8s, 65 /16s and 2 /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 10307 8753 88 CHINAMOBILE-CN China Mobile Communication 7545 6218 843 657 TPG-INTERNET-AP TPG Telecom Limited, AU 9498 4285 530 277 BBIL-AP BHARTI Airtel Ltd., IN 18403 4282 347 25 FPT-AS-AP FPT Telecom Company, VN 7552 3916 1332 26 VIETEL-AS-AP Viettel Group, VN 7713 3690 1044 66 TELKOMNET-AS-AP PT Telekomunikasi Indones 45899 3267 1869 103 VNPT-AS-VN VNPT Corp, VN 24560 2843 847 540 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd., 45090 2205 1439 86 TENCENT-NET-AP Shenzhen Tencent Computer 4755 2175 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 12939 39643 3971 AMAZON-02, US 11492 4675 310 585 CABLEONE, US 7155 4173 286 83 VIASAT-SP-BACKBONE, US 174 3632 8765 951 COGENT-174, US 6327 3623 1320 81 SHAW, CA 22773 3381 3036 182 ASN-CXA-ALL-CCI-22773-RDC, US 749 3255 54879 2506 DNIC-AS-00749, US 16625 2965 1241 2191 AKAMAI-AS, US 396982 2947 3665 459 GOOGLE-CLOUD-PLATFORM, US 36352 2567 213 796 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 7721 1714 145 UNI2-AS, ES 39891 4797 293 62 ALJAWWALSTC-AS, SA 20940 3887 3395 124 AKAMAI-ASN1, NL 9009 3767 325 1956 M247, RO 12389 3034 2303 889 ROSTELECOM-AS, RU 34984 2365 360 583 TELLCOM-AS, TR 212238 2064 147 1525 CDNEXT, GB 13188 1606 100 34 TRIOLAN, UA 8452 1521 1852 14 TE-AS TE-AS, EG 62240 1489 98 747 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 11888 3241 582 UNINET, MX 10620 3522 486 971 Telmex Colombia S.A., CO 13999 2507 539 369 Mega Cable, S.A. de C.V., MX 11830 1990 369 64 Instituto Costarricense de Electricidad y 28573 1351 2437 265 Claro NXT Telecomunicacoes Ltda, BR 3816 1329 782 207 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC, 6147 1193 371 22 Telefonica del Peru S.A.A., PE 11664 1162 278 33 Techtel LMDS Comunicaciones Interactivas 22884 1051 67 377 TOTAL PLAY TELECOMUNICACIONES SA DE CV, M 6503 1048 359 174 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 1567 102 23 ORANGE-COTE-IVOIRE, CI 36992 1428 1518 287 ETISALAT-MISR, EG 36903 1249 554 96 MT-MPLS, MA 37069 1094 1088 19 MOBINIL, EG 36935 1006 521 42 Vodafone-, EG 20011 980 183 284 INTERNET-SOLUTIONS, ZA 6713 561 1861 35 IAM-AS, MA 36914 533 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 12939 39643 3971 AMAZON-02, US 8151 11888 3241 582 UNINET, MX 9808 10307 8753 88 CHINAMOBILE-CN China Mobile Communication 12479 7721 1714 145 UNI2-AS, ES 7545 6218 843 657 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4797 293 62 ALJAWWALSTC-AS, SA 11492 4675 310 585 CABLEONE, US 9498 4285 530 277 BBIL-AP BHARTI Airtel Ltd., IN 18403 4282 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 11888 11306 UNINET, MX 9808 10307 10219 CHINAMOBILE-CN China Mobile Communications Grou 12479 7721 7576 UNI2-AS, ES 7545 6218 5561 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4797 4735 ALJAWWALSTC-AS, SA 18403 4282 4257 FPT-AS-AP FPT Telecom Company, VN 11492 4675 4090 CABLEONE, US 7155 4173 4090 VIASAT-SP-BACKBONE, US 9498 4285 4008 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 23.136.124.0/24 Origin: 394106 BEIDEAL, US 23.136.124.0/24 Transit: 151349 YUKI-NET-AS-AP Yuki Network Ltd, KR 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 /13:581 /14:1216 /15:2145 /16:13930 /17:8244 /18:13658 /19:24482 /20:43862 /21:51585 /22:111677 /23:100994 /24:602953 /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 6653 7721 UNI2-AS, ES 8151 6089 11888 UNINET, MX 11492 3528 4675 CABLEONE, US 39891 3489 4797 ALJAWWALSTC-AS, SA 6327 3418 3623 SHAW, CA 7155 3120 4173 VIASAT-SP-BACKBONE, US 22773 2516 3381 ASN-CXA-ALL-CCI-22773-RDC, US 16509 2329 12939 AMAZON-02, US 30036 2219 2559 MEDIACOM-ENTERPRISE-BUSINESS, US 10620 2184 3522 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) ---------------------------------------------- 1:2342 2:1502 3:600 4:10 5:4570 6:163 7:6 8:1550 9:1 11:172 12:1372 13:349 14:2517 15:351 16:279 17:361 18:915 20:463 21:4 22:188 23:7302 24:3020 25:2 27:2719 29:19 31:3207 32:37 34:83 35:204 36:2396 37:4735 38:8891 39:900 40:154 41:4215 42:1924 43:2556 44:358 45:18451 46:4921 47:288 49:1985 50:1895 51:591 52:1551 54:300 55:1089 56:11 57:249 58:2189 59:1276 60:1170 61:2818 62:2908 63:1826 64:5488 65:2173 66:4572 67:3022 68:1118 69:3969 70:1110 71:613 72:2846 74:2805 75:1659 76:612 77:2698 78:1841 79:1716 80:2189 81:2016 82:2979 83:1414 84:1812 85:3354 86:1047 87:2142 88:1277 89:4321 90:779 91:8295 92:2794 93:2875 94:4091 95:4273 96:1425 97:313 98:994 99:740 100:71 101:1303 102:3709 103:32251 104:4809 105:749 106:994 107:2595 108:1200 109:4001 110:2229 111:3331 112:2039 113:1805 114:1958 115:2123 116:2033 117:2733 118:2876 119:1943 120:1870 121:1360 122:2738 123:2166 124:1608 125:2868 126:88 128:1545 129:948 130:1263 131:1899 132:772 133:451 134:1523 135:329 136:1280 137:1106 138:2876 139:1617 140:1565 141:1496 142:1818 143:1654 144:1060 145:512 146:2144 147:2098 148:2633 149:2892 150:1241 151:2035 152:2098 153:504 154:7894 155:1626 156:3269 157:1903 158:1266 159:2426 160:3547 161:1932 162:3707 163:1950 164:1683 165:2202 166:1419 167:1887 168:4047 169:791 170:5085 171:1001 172:4444 173:3232 174:909 175:1283 176:3691 177:4724 178:3814 179:2335 180:2574 181:4049 182:3372 183:2033 184:2291 185:21428 186:5103 187:4391 188:4193 189:4183 190:9620 191:1537 192:11152 193:9402 194:7769 195:5512 196:3264 197:3761 198:6063 199:8418 200:8059 201:6294 202:10335 203:10522 204:4535 205:3614 206:4579 207:3436 208:4179 209:5189 210:4510 211:2521 212:4486 213:3737 214:1043 215:48 216:6577 217:3082 218:1326 219:377 220:2079 221:1070 222:719 223:2318 End of report