IPv4 R&E Routing Table Report 23:05 GMT Tue 18 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: 974597 Prefixes after maximum aggregation (per Origin AS): 373635 Deaggregation factor: 2.61 Unique aggregates announced (without unneeded subnets): 475328 Number of IPv4 prefixes with a valid ROA: 535365 Number of IPv4 prefixes with an invalid ROA: 1027 Number of IPv4 prefixes with no ROA: 438205 Total ASes present in the Internet Routing Table: 76545 Prefixes per ASN: 12.73 Origin-only ASes present in the Internet Routing Table: 65693 Origin ASes announcing only one prefix: 26853 Transit ASes present in the Internet Routing Table: 10852 Transit-only ASes present in the Internet Routing Table: 527 Paths with bogon ASNs present in the IPv4 Routing Table: 15 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: 1019 Number of instances of unregistered ASNs: 1023 Number of 32-bit ASNs allocated by the RIRs: 46144 Number of 32-bit ASNs visible in the Routing Table: 37929 Prefixes from 32-bit ASNs in the Routing Table: 199532 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: 3110850304 Equivalent to 185 /8s, 107 /16s and 207 /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: 319795 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 255252 Total APNIC prefixes after maximum aggregation: 76191 APNIC Deaggregation factor: 3.35 Prefixes being announced from the APNIC address blocks: 246991 Unique aggregates announced from the APNIC address blocks: 102564 APNIC Region origin ASes present in the Internet Routing Table: 14497 APNIC Prefixes per ASN: 17.04 APNIC Region origin ASes announcing only one prefix: 4415 APNIC Region transit ASes present in the Internet Routing Table: 1944 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: 10026 Number of APNIC addresses announced to Internet: 749303040 Equivalent to 44 /8s, 169 /16s and 117 /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: 287907 Total ARIN prefixes after maximum aggregation: 128131 ARIN Deaggregation factor: 2.25 Prefixes being announced from the ARIN address blocks: 288655 Unique aggregates announced from the ARIN address blocks: 136618 ARIN Region origin ASes present in the Internet Routing Table: 19180 ARIN Prefixes per ASN: 15.05 ARIN Region origin ASes announcing only one prefix: 7024 ARIN Region transit ASes present in the Internet Routing Table: 1909 Average ARIN Region AS path length visible: 4.5 Max ARIN Region AS path length visible: 28 Number of ARIN region 32-bit ASNs visible in the Routing Table: 5156 Number of ARIN addresses announced to Internet: 1352506112 Equivalent to 80 /8s, 157 /16s and 155 /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: 271864 Total RIPE prefixes after maximum aggregation: 132576 RIPE Deaggregation factor: 2.05 Prefixes being announced from the RIPE address blocks: 270110 Unique aggregates announced from the RIPE address blocks: 173415 RIPE Region origin ASes present in the Internet Routing Table: 28854 RIPE Prefixes per ASN: 9.36 RIPE Region origin ASes announcing only one prefix: 12063 RIPE Region transit ASes present in the Internet Routing Table: 3969 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: 12315 Number of RIPE addresses announced to Internet: 732275968 Equivalent to 43 /8s, 165 /16s and 165 /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: 123504 Total LACNIC prefixes after maximum aggregation: 29329 LACNIC Deaggregation factor: 4.21 Prefixes being announced from the LACNIC address blocks: 120216 Unique aggregates announced from the LACNIC address blocks: 48819 LACNIC Region origin ASes present in the Internet Routing Table: 11201 LACNIC Prefixes per ASN: 10.73 LACNIC Region origin ASes announcing only one prefix: 2654 LACNIC Region transit ASes present in the Internet Routing Table: 2479 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: 9156 Number of LACNIC addresses announced to Internet: 171506176 Equivalent to 10 /8s, 56 /16s and 250 /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: 35051 Total AfriNIC prefixes after maximum aggregation: 6772 AfriNIC Deaggregation factor: 5.18 Prefixes being announced from the AfriNIC address blocks: 48129 Unique aggregates announced from the AfriNIC address blocks: 13498 AfriNIC Region origin ASes present in the Internet Routing Table: 1913 AfriNIC Prefixes per ASN: 25.16 AfriNIC Region origin ASes announcing only one prefix: 697 AfriNIC Region transit ASes present in the Internet Routing Table: 373 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: 1276 Number of AfriNIC addresses announced to Internet: 105013248 Equivalent to 6 /8s, 66 /16s and 96 /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 10321 8753 88 CHINAMOBILE-CN China Mobile Communication 7545 6213 843 658 TPG-INTERNET-AP TPG Telecom Limited, AU 18403 4374 347 25 FPT-AS-AP FPT Telecom Company, VN 9498 4264 530 276 BBIL-AP BHARTI Airtel Ltd., IN 7552 3912 1332 26 VIETEL-AS-AP Viettel Group, VN 7713 3690 1044 66 TELKOMNET-AS-AP PT Telekomunikasi Indones 45899 3273 1869 103 VNPT-AS-VN VNPT Corp, VN 24560 2842 847 539 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd., 45090 2206 1439 86 TENCENT-NET-AP Shenzhen Tencent Computer 4755 2170 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 12933 39642 3955 AMAZON-02, US 11492 4675 310 585 CABLEONE, US 7155 4174 286 83 VIASAT-SP-BACKBONE, US 6327 3623 1320 81 SHAW, CA 174 3605 8763 936 COGENT-174, US 22773 3380 3035 181 ASN-CXA-ALL-CCI-22773-RDC, US 749 3259 54879 2506 DNIC-AS-00749, US 396982 2945 3660 458 GOOGLE-CLOUD-PLATFORM, US 16625 2944 1241 2173 AKAMAI-AS, US 30036 2554 351 402 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 7758 1714 145 UNI2-AS, ES 39891 4797 293 62 ALJAWWALSTC-AS, SA 20940 3894 3395 126 AKAMAI-ASN1, NL 9009 3746 321 1934 M247, RO 12389 3000 2303 889 ROSTELECOM-AS, RU 34984 2370 361 582 TELLCOM-AS, TR 212238 2050 147 1510 CDNEXT, GB 13188 1606 100 34 TRIOLAN, UA 8452 1518 1852 14 TE-AS TE-AS, EG 62240 1488 98 746 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 11809 3237 583 UNINET, MX 10620 3523 486 970 Telmex Colombia S.A., CO 13999 2507 539 368 Mega Cable, S.A. de C.V., MX 11830 1993 369 64 Instituto Costarricense de Electricidad y 28573 1351 2437 265 Claro NXT Telecomunicacoes Ltda, BR 3816 1329 781 210 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC, 6147 1194 371 22 Telefonica del Peru S.A.A., PE 6503 1070 359 174 Axtel, S.A.B. de C.V., MX 22884 1048 67 375 TOTAL PLAY TELECOMUNICACIONES SA DE CV, M 11664 1025 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 1619 389 16 LINKdotNET-AS, EG 29571 1580 104 44 ORANGE-COTE-IVOIRE, CI 36992 1426 1518 286 ETISALAT-MISR, EG 36903 1249 554 96 MT-MPLS, MA 36935 1006 521 42 Vodafone-, EG 20011 980 183 284 INTERNET-SOLUTIONS, ZA 37069 859 1083 15 MOBINIL, EG 6713 561 1861 35 IAM-AS, MA 36914 546 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 12933 39642 3955 AMAZON-02, US 8151 11809 3237 583 UNINET, MX 9808 10321 8753 88 CHINAMOBILE-CN China Mobile Communication 12479 7758 1714 145 UNI2-AS, ES 7545 6213 843 658 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4797 293 62 ALJAWWALSTC-AS, SA 11492 4675 310 585 CABLEONE, US 18403 4374 347 25 FPT-AS-AP FPT Telecom Company, VN 9498 4264 530 276 BBIL-AP BHARTI Airtel Ltd., IN 7155 4174 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 11809 11226 UNINET, MX 9808 10321 10233 CHINAMOBILE-CN China Mobile Communications Grou 12479 7758 7613 UNI2-AS, ES 7545 6213 5555 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4797 4735 ALJAWWALSTC-AS, SA 18403 4374 4349 FPT-AS-AP FPT Telecom Company, VN 7155 4174 4091 VIASAT-SP-BACKBONE, US 11492 4675 4090 CABLEONE, US 9498 4264 3988 BBIL-AP BHARTI Airtel Ltd., IN 7552 3912 3886 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 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 46639 UNALLOCATED 8.38.73.0/24 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 23.136.28.0/24 Origin: 1015 SERVERSTARTERHOST, US 23.136.28.0/24 Transit: 30456 COSMIC-GLOBAL, US 23.138.40.0/22 Origin: 964 IONSWITCH-NW, US 23.138.40.0/22 Transit: 20055 AS-WHOLESAIL, US 23.138.41.0/24 Origin: 964 IONSWITCH-NW, US 23.138.41.0/24 Transit: 20055 AS-WHOLESAIL, US 23.140.216.0/24 Origin: 27176 DATAWAGON, US 23.140.216.0/24 Transit: 20278 NEXEON, 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 /12:304 /13:583 /14:1215 /15:2144 /16:13934 /17:8247 /18:13648 /19:24470 /20:43640 /21:51551 /22:111583 /23:100898 /24:602214 /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 6695 7758 UNI2-AS, ES 8151 6021 11809 UNINET, MX 11492 3528 4675 CABLEONE, US 39891 3489 4797 ALJAWWALSTC-AS, SA 6327 3418 3623 SHAW, CA 7155 3121 4174 VIASAT-SP-BACKBONE, US 22773 2517 3380 ASN-CXA-ALL-CCI-22773-RDC, US 16509 2338 12933 AMAZON-02, US 30036 2214 2554 MEDIACOM-ENTERPRISE-BUSINESS, US 10620 2185 3523 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) ---------------------------------------------- 1:2347 2:1503 3:595 4:10 5:4557 6:162 7:6 8:1549 9:1 11:172 12:1375 13:344 14:2514 15:350 16:279 17:361 18:921 20:462 21:4 22:188 23:7284 24:3024 25:2 27:2714 29:19 31:3187 32:37 34:82 35:203 36:2401 37:4592 38:8882 39:899 40:154 41:4221 42:1960 43:2529 44:352 45:18374 46:5009 47:288 49:1988 50:1887 51:591 52:1556 54:302 55:1069 56:9 57:252 58:2196 59:1257 60:1165 61:2821 62:2898 63:1826 64:5484 65:2165 66:4587 67:3009 68:1116 69:3947 70:1110 71:613 72:2851 74:2776 75:1655 76:612 77:2697 78:1856 79:1733 80:2190 81:2021 82:2814 83:1385 84:1806 85:3363 86:1036 87:2152 88:1279 89:4324 90:782 91:8316 92:2793 93:2862 94:3918 95:4253 96:1418 97:315 98:989 99:738 100:71 101:1305 102:3670 103:32259 104:4817 105:732 106:998 107:2595 108:1201 109:4119 110:2230 111:3327 112:2039 113:1799 114:1942 115:2119 116:2043 117:2752 118:2872 119:1943 120:1875 121:1357 122:2729 123:2163 124:1602 125:2886 126:88 128:1542 129:952 130:1262 131:1866 132:779 133:451 134:1528 135:330 136:1262 137:1107 138:2887 139:1617 140:1555 141:1480 142:1805 143:1645 144:1061 145:480 146:2151 147:2091 148:2602 149:2887 150:1251 151:2121 152:2102 153:504 154:7895 155:1613 156:3306 157:1903 158:1271 159:2422 160:3555 161:1941 162:3680 163:1909 164:1695 165:2188 166:1402 167:1877 168:4042 169:787 170:5105 171:1001 172:4447 173:3204 174:910 175:1271 176:3689 177:4724 178:3809 179:2324 180:2571 181:4042 182:3363 183:2069 184:2291 185:21458 186:5119 187:4384 188:4208 189:4195 190:9626 191:1552 192:11133 193:9405 194:7769 195:5518 196:3252 197:3763 198:6060 199:8380 200:8057 201:6286 202:10357 203:10505 204:4507 205:3613 206:4545 207:3439 208:4180 209:5142 210:4507 211:2526 212:4500 213:3721 214:1057 215:42 216:6571 217:3088 218:1326 219:375 220:2104 221:1054 222:719 223:2319 End of report