IPv4 R&E Routing Table Report 23:05 GMT Sun 20 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: 974940 Prefixes after maximum aggregation (per Origin AS): 375742 Deaggregation factor: 2.59 Unique aggregates announced (without unneeded subnets): 478206 Number of IPv4 prefixes with a valid ROA: 537845 Number of IPv4 prefixes with an invalid ROA: 701 Number of IPv4 prefixes with no ROA: 436394 Total ASes present in the Internet Routing Table: 76709 Prefixes per ASN: 12.71 Origin-only ASes present in the Internet Routing Table: 65816 Origin ASes announcing only one prefix: 26914 Transit ASes present in the Internet Routing Table: 10893 Transit-only ASes present in the Internet Routing Table: 533 Paths with bogon ASNs present in the IPv4 Routing Table: 26 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: 1056 Number of instances of unregistered ASNs: 1061 Number of 32-bit ASNs allocated by the RIRs: 46256 Number of 32-bit ASNs visible in the Routing Table: 38121 Prefixes from 32-bit ASNs in the Routing Table: 200563 Number of bogon 32-bit ASNs visible in the Routing Table: 22 Special use prefixes present in the Routing Table: 0 Prefixes being announced from unallocated address space: 452 Number of addresses announced to Internet: 3106383360 Equivalent to 185 /8s, 39 /16s and 166 /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: 319555 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 255372 Total APNIC prefixes after maximum aggregation: 76560 APNIC Deaggregation factor: 3.34 Prefixes being announced from the APNIC address blocks: 247114 Unique aggregates announced from the APNIC address blocks: 102896 APNIC Region origin ASes present in the Internet Routing Table: 14571 APNIC Prefixes per ASN: 16.96 APNIC Region origin ASes announcing only one prefix: 4438 APNIC Region transit ASes present in the Internet Routing Table: 1969 Average APNIC Region AS path length visible: 4.7 Max APNIC Region AS path length visible: 34 Number of APNIC region 32-bit ASNs visible in the Routing Table: 10094 Number of APNIC addresses announced to Internet: 748318720 Equivalent to 44 /8s, 154 /16s and 112 /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: 287545 Total ARIN prefixes after maximum aggregation: 129076 ARIN Deaggregation factor: 2.23 Prefixes being announced from the ARIN address blocks: 288497 Unique aggregates announced from the ARIN address blocks: 137935 ARIN Region origin ASes present in the Internet Routing Table: 19213 ARIN Prefixes per ASN: 15.02 ARIN Region origin ASes announcing only one prefix: 7043 ARIN Region transit ASes present in the Internet Routing Table: 1908 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: 5184 Number of ARIN addresses announced to Internet: 1349283072 Equivalent to 80 /8s, 108 /16s and 109 /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: 272700 Total RIPE prefixes after maximum aggregation: 133354 RIPE Deaggregation factor: 2.04 Prefixes being announced from the RIPE address blocks: 270797 Unique aggregates announced from the RIPE address blocks: 173827 RIPE Region origin ASes present in the Internet Routing Table: 28888 RIPE Prefixes per ASN: 9.37 RIPE Region origin ASes announcing only one prefix: 12057 RIPE Region transit ASes present in the Internet Routing Table: 3968 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: 12390 Number of RIPE addresses announced to Internet: 731837696 Equivalent to 43 /8s, 158 /16s and 245 /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: 123249 Total LACNIC prefixes after maximum aggregation: 29378 LACNIC Deaggregation factor: 4.20 Prefixes being announced from the LACNIC address blocks: 119874 Unique aggregates announced from the LACNIC address blocks: 48886 LACNIC Region origin ASes present in the Internet Routing Table: 11229 LACNIC Prefixes per ASN: 10.68 LACNIC Region origin ASes announcing only one prefix: 2682 LACNIC Region transit ASes present in the Internet Routing Table: 2477 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: 9178 Number of LACNIC addresses announced to Internet: 171763456 Equivalent to 10 /8s, 60 /16s and 231 /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: 35018 Total AfriNIC prefixes after maximum aggregation: 6740 AfriNIC Deaggregation factor: 5.20 Prefixes being announced from the AfriNIC address blocks: 48206 Unique aggregates announced from the AfriNIC address blocks: 14285 AfriNIC Region origin ASes present in the Internet Routing Table: 1910 AfriNIC Prefixes per ASN: 25.24 AfriNIC Region origin ASes announcing only one prefix: 694 AfriNIC Region transit ASes present in the Internet Routing Table: 373 Average AfriNIC Region AS path length visible: 5.3 Max AfriNIC Region AS path length visible: 70 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 1275 Number of AfriNIC addresses announced to Internet: 104960256 Equivalent to 6 /8s, 65 /16s and 145 /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 10345 8753 89 CHINAMOBILE-CN China Mobile Communication 7545 6214 843 656 TPG-INTERNET-AP TPG Telecom Limited, AU 9498 4271 530 273 BBIL-AP BHARTI Airtel Ltd., IN 18403 4264 347 25 FPT-AS-AP FPT Telecom Company, VN 7552 3924 1332 26 VIETEL-AS-AP Viettel Group, VN 7713 3670 1044 66 TELKOMNET-AS-AP PT Telekomunikasi Indones 45899 3266 1869 102 VNPT-AS-VN VNPT Corp, VN 24560 2856 850 537 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd., 45090 2206 1439 86 TENCENT-NET-AP Shenzhen Tencent Computer 4766 2176 11524 637 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 13210 39707 4106 AMAZON-02, US 11492 4694 311 587 CABLEONE, US 7155 3829 286 85 VIASAT-SP-BACKBONE, US 6327 3622 1320 81 SHAW, CA 174 3534 8760 923 COGENT-174, US 22773 3399 3036 183 ASN-CXA-ALL-CCI-22773-RDC, US 749 3254 54879 2505 DNIC-AS-00749, US 16625 2992 1251 2209 AKAMAI-AS, US 396982 2957 3650 468 GOOGLE-CLOUD-PLATFORM, US 36352 2710 222 831 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 7701 1714 145 UNI2-AS, ES 39891 4797 293 62 ALJAWWALSTC-AS, SA 20940 3930 3395 125 AKAMAI-ASN1, NL 9009 3770 325 1959 M247, RO 12389 3067 2303 885 ROSTELECOM-AS PJSC Rostelecom. Technical 34984 2362 360 584 TELLCOM-AS, TR 212238 2098 148 1543 CDNEXT, GB 13188 1606 100 34 TRIOLAN, UA 8452 1458 1852 14 TE-AS TE-AS, EG 62240 1444 95 746 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 11957 3243 591 UNINET, MX 10620 3522 486 992 Telmex Colombia S.A., CO 13999 2511 539 364 Mega Cable, S.A. de C.V., MX 11830 1993 369 64 Instituto Costarricense de Electricidad y 28573 1356 2438 262 Claro NXT Telecomunicacoes Ltda, BR 3816 1333 784 206 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC, 6147 1191 371 22 Telefonica del Peru S.A.A., PE 11664 1055 278 33 Techtel LMDS Comunicaciones Interactivas 22884 1052 67 378 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 1743 607 31 RAYA-AS, EG 29571 1588 102 22 ORANGE-COTE-IVOIRE, CI 36992 1433 1518 283 ETISALAT-MISR, EG 24863 1360 389 16 LINKdotNET-AS, EG 36903 1249 554 96 MT-MPLS, MA 36935 1020 521 42 Vodafone-, EG 20011 981 185 285 INTERNET-SOLUTIONS, ZA 37069 898 1099 15 MOBINIL, EG 6713 560 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 13210 39707 4106 AMAZON-02, US 8151 11957 3243 591 UNINET, MX 9808 10345 8753 89 CHINAMOBILE-CN China Mobile Communication 12479 7701 1714 145 UNI2-AS, ES 7545 6214 843 656 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4797 293 62 ALJAWWALSTC-AS, SA 11492 4694 311 587 CABLEONE, US 9498 4271 530 273 BBIL-AP BHARTI Airtel Ltd., IN 18403 4264 347 25 FPT-AS-AP FPT Telecom Company, VN 20940 3930 3395 125 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 11957 11366 UNINET, MX 9808 10345 10256 CHINAMOBILE-CN China Mobile Communications Grou 12479 7701 7556 UNI2-AS, ES 7545 6214 5558 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4797 4735 ALJAWWALSTC-AS, SA 18403 4264 4239 FPT-AS-AP FPT Telecom Company, VN 11492 4694 4107 CABLEONE, US 9498 4271 3998 BBIL-AP BHARTI Airtel Ltd., IN 7552 3924 3898 VIETEL-AS-AP Viettel Group, VN 20940 3930 3805 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 /13:581 /14:1215 /15:2136 /16:13873 /17:8229 /18:13655 /19:24441 /20:43542 /21:51486 /22:111250 /23:101054 /24:603012 /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 7701 UNI2-AS, ES 8151 6163 11957 UNINET, MX 11492 3531 4694 CABLEONE, US 39891 3489 4797 ALJAWWALSTC-AS, SA 6327 3417 3622 SHAW, CA 7155 2787 3829 VIASAT-SP-BACKBONE, US 22773 2535 3399 ASN-CXA-ALL-CCI-22773-RDC, US 16509 2350 13210 AMAZON-02, US 30036 2218 2558 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) ---------------------------------------------- 1:2339 2:1516 3:617 4:10 5:4624 6:163 7:6 8:1556 9:1 11:172 12:1370 13:354 14:2514 15:352 16:283 17:367 18:922 20:512 21:4 22:188 23:7417 24:2749 25:2 27:2725 29:19 31:3224 32:36 34:83 35:203 36:2397 37:4649 38:8906 39:905 40:166 41:4214 42:1911 43:2553 44:377 45:18515 46:4990 47:290 49:1919 50:1890 51:590 52:1555 54:299 55:1007 56:11 57:253 58:2201 59:1260 60:1171 61:2813 62:2925 63:1821 64:5479 65:2186 66:4593 67:3054 68:1113 69:3819 70:1063 71:615 72:2831 74:2778 75:1589 76:613 77:2739 78:1873 79:1743 80:2195 81:2037 82:3173 83:1430 84:1844 85:3413 86:1050 87:2141 88:1274 89:4296 90:784 91:8323 92:2781 93:2890 94:4072 95:4341 96:1392 97:313 98:996 99:642 100:72 101:1386 102:3743 103:32177 104:4817 105:757 106:986 107:2619 108:1203 109:4079 110:2233 111:3351 112:2047 113:1798 114:1967 115:2164 116:2030 117:2738 118:2891 119:1942 120:1873 121:1363 122:2745 123:2157 124:1608 125:2860 126:91 128:1551 129:952 130:1268 131:1902 132:779 133:451 134:1526 135:331 136:1302 137:1101 138:2881 139:1607 140:1575 141:1486 142:1902 143:1641 144:1081 145:513 146:2145 147:2110 148:2662 149:2912 150:1245 151:1727 152:2097 153:502 154:8022 155:1616 156:3189 157:1891 158:1285 159:2434 160:3582 161:1896 162:3741 163:2066 164:1698 165:2196 166:1443 167:1880 168:4044 169:786 170:5052 171:1003 172:4475 173:3237 174:903 175:1296 176:3673 177:4643 178:3740 179:2279 180:2582 181:4048 182:3366 183:2048 184:2082 185:21503 186:5059 187:4404 188:4202 189:4167 190:9612 191:1477 192:11216 193:9427 194:7760 195:5502 196:3285 197:3690 198:6054 199:8448 200:8069 201:6281 202:10337 203:10529 204:4516 205:3623 206:4575 207:3439 208:4176 209:5134 210:4513 211:2531 212:4515 213:3750 214:1029 215:48 216:6595 217:3122 218:1333 219:377 220:2086 221:1057 222:715 223:2323 End of report