IPv4 R&E Routing Table Report 23:05 GMT Sat 03 May, 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: 977376 Prefixes after maximum aggregation (per Origin AS): 376853 Deaggregation factor: 2.59 Unique aggregates announced (without unneeded subnets): 478625 Number of IPv4 prefixes with a valid ROA: 541205 Number of IPv4 prefixes with an invalid ROA: 736 Number of IPv4 prefixes with no ROA: 435435 Total ASes present in the Internet Routing Table: 76678 Prefixes per ASN: 12.75 Origin-only ASes present in the Internet Routing Table: 65770 Origin ASes announcing only one prefix: 26935 Transit ASes present in the Internet Routing Table: 10908 Transit-only ASes present in the Internet Routing Table: 538 Paths with bogon ASNs present in the IPv4 Routing Table: 21 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: 1054 Number of instances of unregistered ASNs: 1056 Number of 32-bit ASNs allocated by the RIRs: 46319 Number of 32-bit ASNs visible in the Routing Table: 38129 Prefixes from 32-bit ASNs in the Routing Table: 201111 Number of bogon 32-bit ASNs visible in the Routing Table: 16 Special use prefixes present in the Routing Table: 0 Prefixes being announced from unallocated address space: 468 Number of addresses announced to Internet: 3105113344 Equivalent to 185 /8s, 20 /16s and 69 /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: 320213 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 256323 Total APNIC prefixes after maximum aggregation: 76911 APNIC Deaggregation factor: 3.33 Prefixes being announced from the APNIC address blocks: 247453 Unique aggregates announced from the APNIC address blocks: 103066 APNIC Region origin ASes present in the Internet Routing Table: 14562 APNIC Prefixes per ASN: 16.99 APNIC Region origin ASes announcing only one prefix: 4447 APNIC Region transit ASes present in the Internet Routing Table: 1964 Average APNIC Region AS path length visible: 4.7 Max APNIC Region AS path length visible: 45 Number of APNIC region 32-bit ASNs visible in the Routing Table: 10093 Number of APNIC addresses announced to Internet: 748356608 Equivalent to 44 /8s, 155 /16s and 4 /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: 287874 Total ARIN prefixes after maximum aggregation: 129470 ARIN Deaggregation factor: 2.22 Prefixes being announced from the ARIN address blocks: 289004 Unique aggregates announced from the ARIN address blocks: 138418 ARIN Region origin ASes present in the Internet Routing Table: 19198 ARIN Prefixes per ASN: 15.05 ARIN Region origin ASes announcing only one prefix: 7034 ARIN Region transit ASes present in the Internet Routing Table: 1924 Average ARIN Region AS path length visible: 4.4 Max ARIN Region AS path length visible: 24 Number of ARIN region 32-bit ASNs visible in the Routing Table: 5187 Number of ARIN addresses announced to Internet: 1348494336 Equivalent to 80 /8s, 96 /16s and 100 /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: 273222 Total RIPE prefixes after maximum aggregation: 133682 RIPE Deaggregation factor: 2.04 Prefixes being announced from the RIPE address blocks: 271071 Unique aggregates announced from the RIPE address blocks: 174062 RIPE Region origin ASes present in the Internet Routing Table: 28898 RIPE Prefixes per ASN: 9.38 RIPE Region origin ASes announcing only one prefix: 12068 RIPE Region transit ASes present in the Internet Routing Table: 3971 Average RIPE Region AS path length visible: 4.9 Max RIPE Region AS path length visible: 47 Number of RIPE region 32-bit ASNs visible in the Routing Table: 12410 Number of RIPE addresses announced to Internet: 731342848 Equivalent to 43 /8s, 151 /16s and 104 /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: 123516 Total LACNIC prefixes after maximum aggregation: 29412 LACNIC Deaggregation factor: 4.20 Prefixes being announced from the LACNIC address blocks: 120070 Unique aggregates announced from the LACNIC address blocks: 48766 LACNIC Region origin ASes present in the Internet Routing Table: 11215 LACNIC Prefixes per ASN: 10.71 LACNIC Region origin ASes announcing only one prefix: 2692 LACNIC Region transit ASes present in the Internet Routing Table: 2480 Average LACNIC Region AS path length visible: 5.2 Max LACNIC Region AS path length visible: 35 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 9166 Number of LACNIC addresses announced to Internet: 171657984 Equivalent to 10 /8s, 59 /16s and 75 /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: 35387 Total AfriNIC prefixes after maximum aggregation: 6752 AfriNIC Deaggregation factor: 5.24 Prefixes being announced from the AfriNIC address blocks: 49310 Unique aggregates announced from the AfriNIC address blocks: 13924 AfriNIC Region origin ASes present in the Internet Routing Table: 1908 AfriNIC Prefixes per ASN: 25.84 AfriNIC Region origin ASes announcing only one prefix: 694 AfriNIC Region transit ASes present in the Internet Routing Table: 371 Average AfriNIC Region AS path length visible: 5.4 Max AfriNIC Region AS path length visible: 70 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 1273 Number of AfriNIC addresses announced to Internet: 105038592 Equivalent to 6 /8s, 66 /16s and 195 /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 10452 8754 93 CHINAMOBILE-CN China Mobile Communication 7545 6216 843 656 TPG-INTERNET-AP TPG Telecom Limited, AU 9498 4309 531 276 BBIL-AP BHARTI Airtel Ltd., IN 18403 4303 347 25 FPT-AS-AP FPT Telecom Company, VN 7552 3920 1332 26 VIETEL-AS-AP Viettel Group, VN 7713 3675 1044 66 TELKOMNET-AS-AP PT Telekomunikasi Indones 45899 3271 1869 102 VNPT-AS-VN VNPT Corp, VN 24560 2859 851 535 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd., 45090 2208 1439 86 TENCENT-NET-AP Shenzhen Tencent Computer 4766 2189 11523 648 KIXS-AS-KR Korea Telecom, KR 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 13225 39691 4338 AMAZON-02, US 11492 4711 312 591 CABLEONE, US 7155 3859 286 85 VIASAT-SP-BACKBONE, US 174 3646 8754 910 COGENT-174, US 6327 3622 1320 81 SHAW, CA 22773 3369 3034 169 ASN-CXA-ALL-CCI-22773-RDC, US 749 3254 54863 2505 DNIC-AS-00749, US 16625 3001 1261 2217 AKAMAI-AS, US 396982 2955 3657 469 GOOGLE-CLOUD-PLATFORM, US 36352 2772 227 850 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 7725 1714 148 UNI2-AS, ES 39891 4797 293 62 ALJAWWALSTC-AS, SA 20940 3957 3395 123 AKAMAI-ASN1, NL 9009 3789 327 1973 M247, RO 12389 3069 2303 885 ROSTELECOM-AS PJSC Rostelecom. Technical 34984 2362 360 584 TELLCOM-AS, TR 212238 2124 150 1566 CDNEXT, GB 13188 1606 100 34 TRIOLAN, UA 8452 1602 1852 14 TE-AS TE-AS, EG 8551 1431 366 39 BEZEQ-INTERNATIONAL-AS Bezeqint Internet 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 12040 3243 585 UNINET, MX 10620 3522 486 994 Telmex Colombia S.A., CO 13999 2513 540 362 Mega Cable, S.A. de C.V., MX 11830 1994 369 64 Instituto Costarricense de Electricidad y 28573 1359 2438 262 Claro NXT Telecomunicacoes Ltda, BR 3816 1332 784 205 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC, 6147 1190 371 22 Telefonica del Peru S.A.A., PE 11664 1070 278 33 Techtel LMDS Comunicaciones Interactivas 22884 1057 67 375 TOTAL PLAY TELECOMUNICACIONES SA DE CV, M 6503 1043 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 1744 631 30 RAYA-AS, EG 24863 1648 389 16 LINKdotNET-AS, EG 29571 1594 102 22 ORANGE-COTE-IVOIRE, CI 36992 1431 1518 283 ETISALAT-MISR, EG 36903 1249 554 96 MT-MPLS, MA 36935 1020 521 42 Vodafone-, EG 20011 980 185 285 INTERNET-SOLUTIONS, ZA 37069 932 1099 15 MOBINIL, EG 36914 548 82 3 KENET-AS, KE 15399 523 56 53 WANANCHI-, 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 13225 39691 4338 AMAZON-02, US 8151 12040 3243 585 UNINET, MX 9808 10452 8754 93 CHINAMOBILE-CN China Mobile Communication 12479 7725 1714 148 UNI2-AS, ES 7545 6216 843 656 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4797 293 62 ALJAWWALSTC-AS, SA 11492 4711 312 591 CABLEONE, US 9498 4309 531 276 BBIL-AP BHARTI Airtel Ltd., IN 18403 4303 347 25 FPT-AS-AP FPT Telecom Company, VN 20940 3957 3395 123 AKAMAI-ASN1, NL 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 12040 11455 UNINET, MX 9808 10452 10359 CHINAMOBILE-CN China Mobile Communications Grou 12479 7725 7577 UNI2-AS, ES 7545 6216 5560 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4797 4735 ALJAWWALSTC-AS, SA 18403 4303 4278 FPT-AS-AP FPT Telecom Company, VN 11492 4711 4120 CABLEONE, US 9498 4309 4033 BBIL-AP BHARTI Airtel Ltd., IN 7552 3920 3894 VIETEL-AS-AP Viettel Group, VN 20940 3957 3834 AKAMAI-ASN1, NL 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 23.140.216.0/24 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 23.155.208.0/24 Origin: 396169 AS-GHCIL-01, US 23.155.208.0/24 Transit: 35985 ONERINGNET-ATL-1, 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 /12:300 /13:580 /14:1211 /15:2139 /16:13888 /17:8219 /18:13651 /19:24454 /20:43576 /21:51459 /22:111609 /23:101107 /24:605017 /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 6647 7725 UNI2-AS, ES 8151 6243 12040 UNINET, MX 11492 3531 4711 CABLEONE, US 39891 3489 4797 ALJAWWALSTC-AS, SA 6327 3417 3622 SHAW, CA 7155 2818 3859 VIASAT-SP-BACKBONE, US 22773 2517 3369 ASN-CXA-ALL-CCI-22773-RDC, US 16509 2327 13225 AMAZON-02, US 30036 2230 2570 MEDIACOM-ENTERPRISE-BUSINESS, US 10620 2188 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) ---------------------------------------------- 1:2334 2:1501 3:668 4:9 5:4671 6:162 7:6 8:1554 9:1 11:172 12:1365 13:365 14:2514 15:352 16:282 17:366 18:916 20:515 21:4 22:188 23:7468 24:2748 25:2 27:2734 29:19 31:3229 32:36 33:1 34:83 35:203 36:2486 37:4674 38:9044 39:907 40:167 41:4152 42:1950 43:2561 44:377 45:18522 46:5024 47:293 49:1935 50:1886 51:589 52:1552 54:302 55:1083 56:11 57:254 58:2198 59:1281 60:1169 61:2808 62:2938 63:1817 64:5459 65:2164 66:4605 67:3056 68:1133 69:3820 70:1088 71:619 72:2851 74:2764 75:1607 76:614 77:2725 78:1875 79:1757 80:2200 81:2044 82:3195 83:1436 84:1846 85:3417 86:1049 87:2148 88:1282 89:4336 90:783 91:8330 92:2723 93:2893 94:4085 95:4334 96:1414 97:312 98:995 99:669 100:72 101:1385 102:3898 103:32165 104:4810 105:752 106:1032 107:2621 108:1200 109:4078 110:2234 111:3336 112:2049 113:1798 114:1967 115:2168 116:2038 117:2736 118:2877 119:1946 120:1879 121:1368 122:2745 123:2161 124:1612 125:2850 126:91 128:1566 129:945 130:1282 131:1922 132:772 133:451 134:1535 135:331 136:1299 137:1109 138:2884 139:1619 140:1570 141:1492 142:1907 143:1675 144:1092 145:503 146:2152 147:2097 148:2679 149:2875 150:1256 151:1816 152:2097 153:497 154:8295 155:1660 156:3465 157:1889 158:1291 159:2436 160:3573 161:1902 162:3710 163:2096 164:1701 165:2197 166:1467 167:1879 168:4023 169:781 170:5067 171:1007 172:4412 173:3253 174:907 175:1299 176:3664 177:4661 178:3686 179:2276 180:2599 181:4057 182:3387 183:2063 184:2081 185:21514 186:5092 187:4453 188:4214 189:4214 190:9599 191:1474 192:11203 193:9448 194:7766 195:5507 196:3289 197:3686 198:6081 199:8482 200:8073 201:6319 202:10340 203:10538 204:4511 205:3584 206:4567 207:3432 208:4230 209:5157 210:4525 211:2534 212:4515 213:3688 214:1031 215:48 216:6684 217:3141 218:1331 219:378 220:2087 221:1056 222:723 223:2352 End of report