IPv4 R&E Routing Table Report 23:05 GMT Sat 26 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: 976830 Prefixes after maximum aggregation (per Origin AS): 376359 Deaggregation factor: 2.60 Unique aggregates announced (without unneeded subnets): 479061 Number of IPv4 prefixes with a valid ROA: 539394 Number of IPv4 prefixes with an invalid ROA: 1040 Number of IPv4 prefixes with no ROA: 436396 Total ASes present in the Internet Routing Table: 76699 Prefixes per ASN: 12.74 Origin-only ASes present in the Internet Routing Table: 65793 Origin ASes announcing only one prefix: 26918 Transit ASes present in the Internet Routing Table: 10906 Transit-only ASes present in the Internet Routing Table: 532 Paths with bogon ASNs present in the IPv4 Routing Table: 19 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: 1074 Number of instances of unregistered ASNs: 1075 Number of 32-bit ASNs allocated by the RIRs: 46285 Number of 32-bit ASNs visible in the Routing Table: 38130 Prefixes from 32-bit ASNs in the Routing Table: 201025 Number of bogon 32-bit ASNs visible in the Routing Table: 12 Special use prefixes present in the Routing Table: 0 Prefixes being announced from unallocated address space: 464 Number of addresses announced to Internet: 3105937152 Equivalent to 185 /8s, 32 /16s and 215 /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: 320342 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 255766 Total APNIC prefixes after maximum aggregation: 76692 APNIC Deaggregation factor: 3.33 Prefixes being announced from the APNIC address blocks: 247275 Unique aggregates announced from the APNIC address blocks: 103032 APNIC Region origin ASes present in the Internet Routing Table: 14568 APNIC Prefixes per ASN: 16.97 APNIC Region origin ASes announcing only one prefix: 4445 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: 35 Number of APNIC region 32-bit ASNs visible in the Routing Table: 10104 Number of APNIC addresses announced to Internet: 748459008 Equivalent to 44 /8s, 156 /16s and 148 /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: 287896 Total ARIN prefixes after maximum aggregation: 129268 ARIN Deaggregation factor: 2.23 Prefixes being announced from the ARIN address blocks: 289027 Unique aggregates announced from the ARIN address blocks: 138515 ARIN Region origin ASes present in the Internet Routing Table: 19206 ARIN Prefixes per ASN: 15.05 ARIN Region origin ASes announcing only one prefix: 7045 ARIN Region transit ASes present in the Internet Routing Table: 1916 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: 5188 Number of ARIN addresses announced to Internet: 1348789248 Equivalent to 80 /8s, 100 /16s and 228 /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: 273212 Total RIPE prefixes after maximum aggregation: 133643 RIPE Deaggregation factor: 2.04 Prefixes being announced from the RIPE address blocks: 271032 Unique aggregates announced from the RIPE address blocks: 173937 RIPE Region origin ASes present in the Internet Routing Table: 28904 RIPE Prefixes per ASN: 9.38 RIPE Region origin ASes announcing only one prefix: 12062 RIPE Region transit ASes present in the Internet Routing Table: 3962 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: 12401 Number of RIPE addresses announced to Internet: 731706112 Equivalent to 43 /8s, 156 /16s and 243 /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: 123432 Total LACNIC prefixes after maximum aggregation: 29367 LACNIC Deaggregation factor: 4.20 Prefixes being announced from the LACNIC address blocks: 120017 Unique aggregates announced from the LACNIC address blocks: 48756 LACNIC Region origin ASes present in the Internet Routing Table: 11214 LACNIC Prefixes per ASN: 10.70 LACNIC Region origin ASes announcing only one prefix: 2676 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: 9166 Number of LACNIC addresses announced to Internet: 171767040 Equivalent to 10 /8s, 60 /16s and 245 /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: 35450 Total AfriNIC prefixes after maximum aggregation: 6746 AfriNIC Deaggregation factor: 5.25 Prefixes being announced from the AfriNIC address blocks: 49015 Unique aggregates announced from the AfriNIC address blocks: 14436 AfriNIC Region origin ASes present in the Internet Routing Table: 1906 AfriNIC Prefixes per ASN: 25.72 AfriNIC Region origin ASes announcing only one prefix: 690 AfriNIC Region transit ASes present in the Internet Routing Table: 370 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: 1271 Number of AfriNIC addresses announced to Internet: 104993536 Equivalent to 6 /8s, 66 /16s and 19 /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 10366 8754 93 CHINAMOBILE-CN China Mobile Communication 7545 6215 843 656 TPG-INTERNET-AP TPG Telecom Limited, AU 9498 4331 531 279 BBIL-AP BHARTI Airtel Ltd., IN 18403 4263 347 25 FPT-AS-AP FPT Telecom Company, VN 7552 3920 1332 26 VIETEL-AS-AP Viettel Group, VN 7713 3674 1044 66 TELKOMNET-AS-AP PT Telekomunikasi Indones 45899 3268 1869 102 VNPT-AS-VN VNPT Corp, VN 24560 2862 851 540 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd., 45090 2206 1439 86 TENCENT-NET-AP Shenzhen Tencent Computer 4766 2180 11524 640 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 13231 39701 4092 AMAZON-02, US 11492 4701 312 586 CABLEONE, US 7155 3859 286 85 VIASAT-SP-BACKBONE, US 174 3697 8755 916 COGENT-174, US 6327 3622 1320 81 SHAW, CA 22773 3396 3036 183 ASN-CXA-ALL-CCI-22773-RDC, US 749 3255 54879 2506 DNIC-AS-00749, US 16625 3001 1256 2213 AKAMAI-AS, US 396982 2966 3651 474 GOOGLE-CLOUD-PLATFORM, US 36352 2735 225 835 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 7720 1714 145 UNI2-AS, ES 39891 4797 293 62 ALJAWWALSTC-AS, SA 20940 3948 3395 123 AKAMAI-ASN1, NL 9009 3771 325 1963 M247, RO 12389 3068 2303 885 ROSTELECOM-AS PJSC Rostelecom. Technical 34984 2361 360 583 TELLCOM-AS, TR 212238 2116 150 1552 CDNEXT, GB 13188 1606 100 34 TRIOLAN, UA 8452 1595 1852 14 TE-AS TE-AS, EG 8551 1428 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 11972 3243 595 UNINET, MX 10620 3516 485 994 Telmex Colombia S.A., CO 13999 2529 539 365 Mega Cable, S.A. de C.V., MX 11830 1993 369 64 Instituto Costarricense de Electricidad y 28573 1358 2438 262 Claro NXT Telecomunicacoes Ltda, BR 3816 1332 784 205 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC, 11664 1192 278 33 Techtel LMDS Comunicaciones Interactivas 6147 1190 371 21 Telefonica del Peru S.A.A., PE 22884 1054 67 378 TOTAL PLAY TELECOMUNICACIONES SA DE CV, M 6503 1027 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 1653 389 18 LINKdotNET-AS, EG 29571 1589 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 980 185 285 INTERNET-SOLUTIONS, ZA 37069 932 1099 15 MOBINIL, EG 36914 548 82 3 KENET-AS, KE 15399 531 56 58 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 13231 39701 4092 AMAZON-02, US 8151 11972 3243 595 UNINET, MX 9808 10366 8754 93 CHINAMOBILE-CN China Mobile Communication 12479 7720 1714 145 UNI2-AS, ES 7545 6215 843 656 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4797 293 62 ALJAWWALSTC-AS, SA 11492 4701 312 586 CABLEONE, US 9498 4331 531 279 BBIL-AP BHARTI Airtel Ltd., IN 18403 4263 347 25 FPT-AS-AP FPT Telecom Company, VN 20940 3948 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 11972 11377 UNINET, MX 9808 10366 10273 CHINAMOBILE-CN China Mobile Communications Grou 12479 7720 7575 UNI2-AS, ES 7545 6215 5559 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4797 4735 ALJAWWALSTC-AS, SA 18403 4263 4238 FPT-AS-AP FPT Telecom Company, VN 11492 4701 4115 CABLEONE, US 9498 4331 4052 BBIL-AP BHARTI Airtel Ltd., IN 7552 3920 3894 VIETEL-AS-AP Viettel Group, VN 20940 3948 3825 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 /14:1213 /15:2137 /16:13878 /17:8223 /18:13654 /19:24445 /20:43463 /21:51375 /22:111606 /23:101091 /24:604699 /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 6641 7720 UNI2-AS, ES 8151 6177 11972 UNINET, MX 11492 3531 4701 CABLEONE, US 39891 3489 4797 ALJAWWALSTC-AS, SA 6327 3417 3622 SHAW, CA 7155 2818 3859 VIASAT-SP-BACKBONE, US 22773 2532 3396 ASN-CXA-ALL-CCI-22773-RDC, US 16509 2358 13231 AMAZON-02, US 30036 2225 2565 MEDIACOM-ENTERPRISE-BUSINESS, US 10620 2182 3516 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 2:1517 3:623 4:9 5:4647 6:163 7:6 8:1557 9:1 11:172 12:1372 13:350 14:2504 15:352 16:282 17:367 18:918 20:512 21:4 22:188 23:7480 24:2751 25:2 27:2729 29:19 31:3219 32:36 34:83 35:206 36:2399 37:4662 38:9061 39:907 40:166 41:4219 42:1902 43:2566 44:377 45:18494 46:5018 47:292 49:1931 50:1892 51:590 52:1556 54:298 55:1086 56:11 57:252 58:2197 59:1303 60:1171 61:2814 62:2937 63:1823 64:5467 65:2188 66:4600 67:3048 68:1113 69:3825 70:1061 71:615 72:2831 74:2779 75:1607 76:614 77:2733 78:1878 79:1749 80:2212 81:2041 82:3178 83:1424 84:1842 85:3407 86:1048 87:2147 88:1278 89:4321 90:784 91:8327 92:2718 93:2890 94:4078 95:4334 96:1405 97:312 98:995 99:669 100:72 101:1400 102:3903 103:32191 104:4819 105:756 106:1044 107:2621 108:1206 109:4082 110:2235 111:3345 112:2048 113:1794 114:1965 115:2168 116:2035 117:2736 118:2890 119:1943 120:1872 121:1368 122:2747 123:2164 124:1607 125:2860 126:91 128:1555 129:946 130:1285 131:1896 132:746 133:450 134:1530 135:331 136:1305 137:1114 138:2889 139:1613 140:1568 141:1493 142:1904 143:1653 144:1076 145:514 146:2146 147:2097 148:2686 149:2887 150:1251 151:1753 152:2095 153:504 154:8186 155:1634 156:3260 157:1886 158:1292 159:2434 160:3581 161:1905 162:3739 163:2074 164:1678 165:2193 166:1446 167:1870 168:4039 169:785 170:5048 171:1007 172:4487 173:3248 174:905 175:1299 176:3669 177:4680 178:3707 179:2537 180:2589 181:4056 182:3390 183:2050 184:2079 185:21544 186:5088 187:4413 188:4219 189:4203 190:9623 191:1476 192:11242 193:9448 194:7768 195:5504 196:3296 197:3691 198:6074 199:8466 200:8084 201:6283 202:10317 203:10535 204:4517 205:3602 206:4577 207:3433 208:4206 209:5142 210:4520 211:2534 212:4528 213:3774 214:1030 215:48 216:6596 217:3134 218:1331 219:377 220:2088 221:1058 222:724 223:2349 End of report