IPv4 R&E Routing Table Report 23:05 GMT Thu 01 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: 976983 Prefixes after maximum aggregation (per Origin AS): 376757 Deaggregation factor: 2.59 Unique aggregates announced (without unneeded subnets): 478697 Number of IPv4 prefixes with a valid ROA: 540197 Number of IPv4 prefixes with an invalid ROA: 776 Number of IPv4 prefixes with no ROA: 436010 Total ASes present in the Internet Routing Table: 76690 Prefixes per ASN: 12.74 Origin-only ASes present in the Internet Routing Table: 65773 Origin ASes announcing only one prefix: 26934 Transit ASes present in the Internet Routing Table: 10917 Transit-only ASes present in the Internet Routing Table: 540 Paths with bogon ASNs present in the IPv4 Routing Table: 20 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: 1048 Number of instances of unregistered ASNs: 1049 Number of 32-bit ASNs allocated by the RIRs: 46308 Number of 32-bit ASNs visible in the Routing Table: 38137 Prefixes from 32-bit ASNs in the Routing Table: 200920 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: 474 Number of addresses announced to Internet: 3105268736 Equivalent to 185 /8s, 22 /16s and 164 /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: 320002 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 256233 Total APNIC prefixes after maximum aggregation: 76891 APNIC Deaggregation factor: 3.33 Prefixes being announced from the APNIC address blocks: 247428 Unique aggregates announced from the APNIC address blocks: 103062 APNIC Region origin ASes present in the Internet Routing Table: 14565 APNIC Prefixes per ASN: 16.99 APNIC Region origin ASes announcing only one prefix: 4441 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: 35 Number of APNIC region 32-bit ASNs visible in the Routing Table: 10097 Number of APNIC addresses announced to Internet: 748352512 Equivalent to 44 /8s, 154 /16s and 244 /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: 287890 Total ARIN prefixes after maximum aggregation: 129438 ARIN Deaggregation factor: 2.22 Prefixes being announced from the ARIN address blocks: 289049 Unique aggregates announced from the ARIN address blocks: 138435 ARIN Region origin ASes present in the Internet Routing Table: 19197 ARIN Prefixes per ASN: 15.06 ARIN Region origin ASes announcing only one prefix: 7034 ARIN Region transit ASes present in the Internet Routing Table: 1920 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: 5185 Number of ARIN addresses announced to Internet: 1348642560 Equivalent to 80 /8s, 98 /16s and 167 /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: 273119 Total RIPE prefixes after maximum aggregation: 133605 RIPE Deaggregation factor: 2.04 Prefixes being announced from the RIPE address blocks: 270980 Unique aggregates announced from the RIPE address blocks: 174039 RIPE Region origin ASes present in the Internet Routing Table: 28896 RIPE Prefixes per ASN: 9.38 RIPE Region origin ASes announcing only one prefix: 12063 RIPE Region transit ASes present in the Internet Routing Table: 3975 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: 731318784 Equivalent to 43 /8s, 151 /16s and 10 /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: 123248 Total LACNIC prefixes after maximum aggregation: 29445 LACNIC Deaggregation factor: 4.19 Prefixes being announced from the LACNIC address blocks: 119800 Unique aggregates announced from the LACNIC address blocks: 48815 LACNIC Region origin ASes present in the Internet Routing Table: 11223 LACNIC Prefixes per ASN: 10.67 LACNIC Region origin ASes announcing only one prefix: 2700 LACNIC Region transit ASes present in the Internet Routing Table: 2481 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: 9171 Number of LACNIC addresses announced to Internet: 171725056 Equivalent to 10 /8s, 60 /16s and 81 /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: 35445 Total AfriNIC prefixes after maximum aggregation: 6757 AfriNIC Deaggregation factor: 5.25 Prefixes being announced from the AfriNIC address blocks: 49252 Unique aggregates announced from the AfriNIC address blocks: 13955 AfriNIC Region origin ASes present in the Internet Routing Table: 1911 AfriNIC Prefixes per ASN: 25.77 AfriNIC Region origin ASes announcing only one prefix: 696 AfriNIC Region transit ASes present in the Internet Routing Table: 372 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: 1274 Number of AfriNIC addresses announced to Internet: 105006336 Equivalent to 6 /8s, 66 /16s and 69 /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 6215 843 656 TPG-INTERNET-AP TPG Telecom Limited, AU 18403 4323 347 25 FPT-AS-AP FPT Telecom Company, VN 9498 4308 531 277 BBIL-AP BHARTI Airtel Ltd., IN 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 13216 39691 4265 AMAZON-02, US 11492 4711 312 591 CABLEONE, US 7155 3859 286 85 VIASAT-SP-BACKBONE, US 174 3665 8754 911 COGENT-174, US 6327 3622 1320 81 SHAW, CA 22773 3385 3036 179 ASN-CXA-ALL-CCI-22773-RDC, US 749 3253 54863 2504 DNIC-AS-00749, US 16625 2999 1260 2216 AKAMAI-AS, US 396982 2966 3651 474 GOOGLE-CLOUD-PLATFORM, US 36352 2775 227 853 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 7700 1714 148 UNI2-AS, ES 39891 4797 293 62 ALJAWWALSTC-AS, SA 20940 3955 3395 123 AKAMAI-ASN1, NL 9009 3769 325 1957 M247, RO 12389 3069 2303 885 ROSTELECOM-AS PJSC Rostelecom. Technical 34984 2361 360 583 TELLCOM-AS, TR 212238 2115 150 1556 CDNEXT, GB 13188 1606 100 34 TRIOLAN, UA 8452 1600 1852 14 TE-AS TE-AS, EG 8551 1431 366 33 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 12026 3242 585 UNINET, MX 10620 3521 485 995 Telmex Colombia S.A., CO 13999 2513 540 362 Mega Cable, S.A. de C.V., MX 11830 1995 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 1191 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 1040 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 1650 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 540 82 3 KENET-AS, KE 15399 524 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 13216 39691 4265 AMAZON-02, US 8151 12026 3242 585 UNINET, MX 9808 10452 8754 93 CHINAMOBILE-CN China Mobile Communication 12479 7700 1714 148 UNI2-AS, ES 7545 6215 843 656 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4797 293 62 ALJAWWALSTC-AS, SA 11492 4711 312 591 CABLEONE, US 18403 4323 347 25 FPT-AS-AP FPT Telecom Company, VN 9498 4308 531 277 BBIL-AP BHARTI Airtel Ltd., IN 20940 3955 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 12026 11441 UNINET, MX 9808 10452 10359 CHINAMOBILE-CN China Mobile Communications Grou 12479 7700 7552 UNI2-AS, ES 7545 6215 5559 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4797 4735 ALJAWWALSTC-AS, SA 18403 4323 4298 FPT-AS-AP FPT Telecom Company, VN 11492 4711 4120 CABLEONE, US 9498 4308 4031 BBIL-AP BHARTI Airtel Ltd., IN 7552 3920 3894 VIETEL-AS-AP Viettel Group, VN 20940 3955 3832 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 /16:13889 /17:8220 /18:13648 /19:24448 /20:43545 /21:51429 /22:111590 /23:101064 /24:604754 /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 6622 7700 UNI2-AS, ES 8151 6230 12026 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 2524 3385 ASN-CXA-ALL-CCI-22773-RDC, US 16509 2343 13216 AMAZON-02, US 30036 2230 2570 MEDIACOM-ENTERPRISE-BUSINESS, US 10620 2187 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) ---------------------------------------------- 1:2339 2:1500 3:648 4:9 5:4670 6:162 7:6 8:1555 9:1 11:172 12:1365 13:363 14:2514 15:352 16:282 17:367 18:914 20:514 21:4 22:188 23:7474 24:2749 25:2 27:2735 29:19 31:3219 32:36 33:1 34:83 35:205 36:2488 37:4684 38:9065 39:907 40:169 41:4195 42:1953 43:2562 44:376 45:18468 46:5021 47:293 49:1933 50:1895 51:590 52:1550 54:301 55:1087 56:11 57:253 58:2198 59:1281 60:1169 61:2809 62:2937 63:1818 64:5451 65:2174 66:4602 67:3054 68:1134 69:3816 70:1090 71:618 72:2851 74:2766 75:1606 76:614 77:2729 78:1873 79:1757 80:2196 81:2043 82:3204 83:1433 84:1842 85:3409 86:1047 87:2141 88:1282 89:4334 90:782 91:8328 92:2716 93:2895 94:4074 95:4332 96:1417 97:312 98:996 99:668 100:72 101:1384 102:3907 103:32156 104:4816 105:752 106:1046 107:2620 108:1199 109:4073 110:2234 111:3336 112:2049 113:1799 114:1967 115:2167 116:2039 117:2736 118:2885 119:1946 120:1880 121:1369 122:2745 123:2159 124:1612 125:2852 126:91 128:1567 129:950 130:1284 131:1926 132:774 133:451 134:1534 135:331 136:1304 137:1114 138:2868 139:1613 140:1572 141:1491 142:1905 143:1679 144:1094 145:500 146:2149 147:2094 148:2675 149:2877 150:1257 151:1810 152:2096 153:499 154:8280 155:1656 156:3435 157:1887 158:1294 159:2435 160:3576 161:1901 162:3735 163:2091 164:1698 165:2197 166:1472 167:1873 168:4020 169:781 170:5067 171:1007 172:4408 173:3256 174:906 175:1298 176:3662 177:4643 178:3683 179:2273 180:2600 181:4056 182:3389 183:2063 184:2081 185:21525 186:5078 187:4433 188:4211 189:4201 190:9503 191:1470 192:11201 193:9443 194:7763 195:5509 196:3287 197:3677 198:6082 199:8488 200:8064 201:6322 202:10329 203:10529 204:4512 205:3571 206:4564 207:3434 208:4229 209:5162 210:4527 211:2534 212:4519 213:3691 214:1030 215:48 216:6682 217:3138 218:1331 219:378 220:2087 221:1056 222:723 223:2348 End of report