IPv4 R&E Routing Table Report 23:05 GMT Mon 21 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: 975583 Prefixes after maximum aggregation (per Origin AS): 375763 Deaggregation factor: 2.60 Unique aggregates announced (without unneeded subnets): 478143 Number of IPv4 prefixes with a valid ROA: 537914 Number of IPv4 prefixes with an invalid ROA: 709 Number of IPv4 prefixes with no ROA: 436960 Total ASes present in the Internet Routing Table: 76694 Prefixes per ASN: 12.72 Origin-only ASes present in the Internet Routing Table: 65795 Origin ASes announcing only one prefix: 26909 Transit ASes present in the Internet Routing Table: 10899 Transit-only ASes present in the Internet Routing Table: 534 Paths with bogon ASNs present in the IPv4 Routing Table: 22 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: 1057 Number of 32-bit ASNs allocated by the RIRs: 46256 Number of 32-bit ASNs visible in the Routing Table: 38112 Prefixes from 32-bit ASNs in the Routing Table: 200597 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: 452 Number of addresses announced to Internet: 3106309632 Equivalent to 185 /8s, 38 /16s and 134 /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: 319686 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 255281 Total APNIC prefixes after maximum aggregation: 76535 APNIC Deaggregation factor: 3.34 Prefixes being announced from the APNIC address blocks: 247014 Unique aggregates announced from the APNIC address blocks: 102842 APNIC Region origin ASes present in the Internet Routing Table: 14569 APNIC Prefixes per ASN: 16.95 APNIC Region origin ASes announcing only one prefix: 4444 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: 10095 Number of APNIC addresses announced to Internet: 748305152 Equivalent to 44 /8s, 154 /16s and 59 /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: 287675 Total ARIN prefixes after maximum aggregation: 129073 ARIN Deaggregation factor: 2.23 Prefixes being announced from the ARIN address blocks: 288660 Unique aggregates announced from the ARIN address blocks: 137948 ARIN Region origin ASes present in the Internet Routing Table: 19206 ARIN Prefixes per ASN: 15.03 ARIN Region origin ASes announcing only one prefix: 7037 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: 5179 Number of ARIN addresses announced to Internet: 1349234944 Equivalent to 80 /8s, 107 /16s and 177 /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: 272871 Total RIPE prefixes after maximum aggregation: 133405 RIPE Deaggregation factor: 2.05 Prefixes being announced from the RIPE address blocks: 270829 Unique aggregates announced from the RIPE address blocks: 173814 RIPE Region origin ASes present in the Internet Routing Table: 28887 RIPE Prefixes per ASN: 9.38 RIPE Region origin ASes announcing only one prefix: 12059 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: 12390 Number of RIPE addresses announced to Internet: 731847936 Equivalent to 43 /8s, 159 /16s and 29 /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: 123367 Total LACNIC prefixes after maximum aggregation: 29377 LACNIC Deaggregation factor: 4.20 Prefixes being announced from the LACNIC address blocks: 119986 Unique aggregates announced from the LACNIC address blocks: 48879 LACNIC Region origin ASes present in the Internet Routing Table: 11225 LACNIC Prefixes per ASN: 10.69 LACNIC Region origin ASes announcing only one prefix: 2680 LACNIC Region transit ASes present in the Internet Routing Table: 2476 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: 9174 Number of LACNIC addresses announced to Internet: 171759872 Equivalent to 10 /8s, 60 /16s and 217 /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: 35333 Total AfriNIC prefixes after maximum aggregation: 6739 AfriNIC Deaggregation factor: 5.24 Prefixes being announced from the AfriNIC address blocks: 48642 Unique aggregates announced from the AfriNIC address blocks: 14283 AfriNIC Region origin ASes present in the Internet Routing Table: 1908 AfriNIC Prefixes per ASN: 25.49 AfriNIC Region origin ASes announcing only one prefix: 689 AfriNIC Region transit ASes present in the Internet Routing Table: 372 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: 1274 Number of AfriNIC addresses announced to Internet: 104941568 Equivalent to 6 /8s, 65 /16s and 72 /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 3674 1044 66 TELKOMNET-AS-AP PT Telekomunikasi Indones 45899 3265 1869 102 VNPT-AS-VN VNPT Corp, VN 24560 2857 851 537 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 13240 39708 4118 AMAZON-02, US 11492 4693 311 590 CABLEONE, US 7155 3829 286 85 VIASAT-SP-BACKBONE, US 6327 3622 1320 81 SHAW, CA 174 3540 8760 923 COGENT-174, US 22773 3396 3036 183 ASN-CXA-ALL-CCI-22773-RDC, US 749 3254 54879 2505 DNIC-AS-00749, US 16625 2993 1251 2210 AKAMAI-AS, US 396982 2963 3651 472 GOOGLE-CLOUD-PLATFORM, US 36352 2725 224 831 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 7695 1714 145 UNI2-AS, ES 39891 4797 293 62 ALJAWWALSTC-AS, SA 20940 3931 3395 125 AKAMAI-ASN1, NL 9009 3766 325 1959 M247, RO 12389 3068 2303 885 ROSTELECOM-AS PJSC Rostelecom. Technical 34984 2361 360 583 TELLCOM-AS, TR 212238 2098 148 1543 CDNEXT, GB 13188 1606 100 34 TRIOLAN, UA 8452 1595 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 11962 3243 592 UNINET, MX 10620 3517 485 992 Telmex Colombia S.A., CO 13999 2509 539 367 Mega Cable, S.A. de C.V., MX 11830 1968 369 64 Instituto Costarricense de Electricidad y 28573 1357 2438 262 Claro NXT Telecomunicacoes Ltda, BR 3816 1333 784 206 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC, 6147 1192 371 22 Telefonica del Peru S.A.A., PE 11664 1054 278 33 Techtel LMDS Comunicaciones Interactivas 22884 1051 67 377 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 1743 607 31 RAYA-AS, EG 24863 1639 389 16 LINKdotNET-AS, EG 29571 1588 102 22 ORANGE-COTE-IVOIRE, CI 36992 1433 1518 283 ETISALAT-MISR, EG 36903 1249 554 96 MT-MPLS, MA 36935 1020 521 42 Vodafone-, EG 20011 981 185 285 INTERNET-SOLUTIONS, ZA 37069 932 1099 15 MOBINIL, EG 6713 561 1861 35 IAM-AS, MA 36914 539 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 13240 39708 4118 AMAZON-02, US 8151 11962 3243 592 UNINET, MX 9808 10345 8753 89 CHINAMOBILE-CN China Mobile Communication 12479 7695 1714 145 UNI2-AS, ES 7545 6214 843 656 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4797 293 62 ALJAWWALSTC-AS, SA 11492 4693 311 590 CABLEONE, US 9498 4271 530 273 BBIL-AP BHARTI Airtel Ltd., IN 18403 4264 347 25 FPT-AS-AP FPT Telecom Company, VN 20940 3931 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 11962 11370 UNINET, MX 9808 10345 10256 CHINAMOBILE-CN China Mobile Communications Grou 12479 7695 7550 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 4693 4103 CABLEONE, US 9498 4271 3998 BBIL-AP BHARTI Airtel Ltd., IN 7552 3924 3898 VIETEL-AS-AP Viettel Group, VN 20940 3931 3806 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 /14:1214 /15:2136 /16:13884 /17:8228 /18:13659 /19:24461 /20:43572 /21:51497 /22:111652 /23:101105 /24:603128 /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 6616 7695 UNI2-AS, ES 8151 6166 11962 UNINET, MX 11492 3530 4693 CABLEONE, US 39891 3489 4797 ALJAWWALSTC-AS, SA 6327 3417 3622 SHAW, CA 7155 2787 3829 VIASAT-SP-BACKBONE, US 22773 2532 3396 ASN-CXA-ALL-CCI-22773-RDC, US 16509 2357 13240 AMAZON-02, US 30036 2219 2559 MEDIACOM-ENTERPRISE-BUSINESS, US 10620 2183 3517 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) ---------------------------------------------- 1:2344 2:1516 3:618 4:10 5:4625 6:162 7:6 8:1555 9:1 11:172 12:1370 13:353 14:2514 15:352 16:283 17:367 18:922 20:512 21:4 22:188 23:7416 24:2749 25:2 27:2726 29:19 31:3225 32:36 34:83 35:203 36:2396 37:4669 38:8913 39:905 40:166 41:4225 42:1902 43:2553 44:376 45:18499 46:4983 47:290 49:1919 50:1890 51:590 52:1558 54:300 55:1090 56:11 57:253 58:2199 59:1260 60:1171 61:2814 62:2924 63:1822 64:5485 65:2187 66:4592 67:3052 68:1113 69:3818 70:1062 71:615 72:2829 74:2777 75:1589 76:614 77:2742 78:1874 79:1744 80:2196 81:2036 82:3173 83:1430 84:1844 85:3408 86:1050 87:2141 88:1274 89:4297 90:782 91:8327 92:2780 93:2887 94:4072 95:4329 96:1394 97:313 98:996 99:644 100:72 101:1386 102:3750 103:32169 104:4811 105:757 106:980 107:2619 108:1203 109:4074 110:2233 111:3330 112:2043 113:1797 114:1965 115:2129 116:2032 117:2732 118:2886 119:1944 120:1873 121:1363 122:2745 123:2155 124:1608 125:2858 126:91 128:1551 129:953 130:1272 131:1908 132:779 133:451 134:1526 135:331 136:1304 137:1107 138:2880 139:1608 140:1573 141:1488 142:1902 143:1639 144:1080 145:513 146:2145 147:2109 148:2660 149:2924 150:1244 151:1728 152:2096 153:502 154:8020 155:1617 156:3198 157:1889 158:1287 159:2437 160:3578 161:1896 162:3740 163:2067 164:1695 165:2195 166:1445 167:1879 168:4044 169:786 170:5057 171:1002 172:4470 173:3235 174:903 175:1295 176:3670 177:4683 178:3728 179:2281 180:2577 181:4060 182:3362 183:2048 184:2082 185:21505 186:5073 187:4406 188:4201 189:4180 190:9618 191:1474 192:11227 193:9426 194:7757 195:5502 196:3285 197:3700 198:6054 199:8460 200:8079 201:6259 202:10339 203:10530 204:4519 205:3623 206:4576 207:3442 208:4178 209:5129 210:4516 211:2534 212:4516 213:3753 214:1033 215:48 216:6593 217:3122 218:1333 219:377 220:2085 221:1057 222:715 223:2323 End of report