IPv4 R&E Routing Table Report 23:05 GMT Wed 30 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: 977266 Prefixes after maximum aggregation (per Origin AS): 376552 Deaggregation factor: 2.60 Unique aggregates announced (without unneeded subnets): 478657 Number of IPv4 prefixes with a valid ROA: 540433 Number of IPv4 prefixes with an invalid ROA: 695 Number of IPv4 prefixes with no ROA: 436138 Total ASes present in the Internet Routing Table: 76692 Prefixes per ASN: 12.74 Origin-only ASes present in the Internet Routing Table: 65762 Origin ASes announcing only one prefix: 26946 Transit ASes present in the Internet Routing Table: 10930 Transit-only ASes present in the Internet Routing Table: 537 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: 1052 Number of instances of unregistered ASNs: 1053 Number of 32-bit ASNs allocated by the RIRs: 46303 Number of 32-bit ASNs visible in the Routing Table: 38137 Prefixes from 32-bit ASNs in the Routing Table: 200914 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: 471 Number of addresses announced to Internet: 3105514240 Equivalent to 185 /8s, 26 /16s and 99 /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: 320097 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 256387 Total APNIC prefixes after maximum aggregation: 76842 APNIC Deaggregation factor: 3.34 Prefixes being announced from the APNIC address blocks: 247554 Unique aggregates announced from the APNIC address blocks: 103082 APNIC Region origin ASes present in the Internet Routing Table: 14562 APNIC Prefixes per ASN: 17.00 APNIC Region origin ASes announcing only one prefix: 4447 APNIC Region transit ASes present in the Internet Routing Table: 1968 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: 10096 Number of APNIC addresses announced to Internet: 748372224 Equivalent to 44 /8s, 155 /16s and 65 /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: 287933 Total ARIN prefixes after maximum aggregation: 129370 ARIN Deaggregation factor: 2.23 Prefixes being announced from the ARIN address blocks: 289109 Unique aggregates announced from the ARIN address blocks: 138401 ARIN Region origin ASes present in the Internet Routing Table: 19198 ARIN Prefixes per ASN: 15.06 ARIN Region origin ASes announcing only one prefix: 7038 ARIN Region transit ASes present in the Internet Routing Table: 1912 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: 1348664320 Equivalent to 80 /8s, 98 /16s and 252 /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: 272894 Total RIPE prefixes after maximum aggregation: 133608 RIPE Deaggregation factor: 2.04 Prefixes being announced from the RIPE address blocks: 270777 Unique aggregates announced from the RIPE address blocks: 174014 RIPE Region origin ASes present in the Internet Routing Table: 28902 RIPE Prefixes per ASN: 9.37 RIPE Region origin ASes announcing only one prefix: 12070 RIPE Region transit ASes present in the Internet Routing Table: 3984 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: 12411 Number of RIPE addresses announced to Internet: 731516928 Equivalent to 43 /8s, 154 /16s and 16 /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: 123503 Total LACNIC prefixes after maximum aggregation: 29347 LACNIC Deaggregation factor: 4.21 Prefixes being announced from the LACNIC address blocks: 120058 Unique aggregates announced from the LACNIC address blocks: 48791 LACNIC Region origin ASes present in the Internet Routing Table: 11222 LACNIC Prefixes per ASN: 10.70 LACNIC Region origin ASes announcing only one prefix: 2695 LACNIC Region transit ASes present in the Internet Routing Table: 2485 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: 171721472 Equivalent to 10 /8s, 60 /16s and 67 /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: 35497 Total AfriNIC prefixes after maximum aggregation: 6760 AfriNIC Deaggregation factor: 5.25 Prefixes being announced from the AfriNIC address blocks: 49297 Unique aggregates announced from the AfriNIC address blocks: 13981 AfriNIC Region origin ASes present in the Internet Routing Table: 1914 AfriNIC Prefixes per ASN: 25.76 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: 1275 Number of AfriNIC addresses announced to Internet: 105017344 Equivalent to 6 /8s, 66 /16s and 112 /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 4308 531 277 BBIL-AP BHARTI Airtel Ltd., IN 18403 4242 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 2188 11523 650 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 39698 4192 AMAZON-02, US 11492 4702 312 599 CABLEONE, US 7155 3859 286 85 VIASAT-SP-BACKBONE, US 174 3727 8755 923 COGENT-174, US 6327 3622 1320 81 SHAW, CA 22773 3387 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 2749 226 842 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 148 UNI2-AS, ES 39891 4554 283 64 ALJAWWALSTC-AS, SA 20940 3953 3395 123 AKAMAI-ASN1, NL 9009 3775 326 1964 M247, RO 12389 3069 2303 885 ROSTELECOM-AS PJSC Rostelecom. Technical 34984 2362 360 584 TELLCOM-AS, TR 212238 2117 150 1558 CDNEXT, GB 13188 1606 100 34 TRIOLAN, UA 8452 1600 1852 14 TE-AS TE-AS, EG 8551 1429 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 12022 3241 592 UNINET, MX 10620 3520 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, 11664 1198 278 33 Techtel LMDS Comunicaciones Interactivas 6147 1192 371 22 Telefonica del Peru S.A.A., PE 22884 1056 67 374 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 1651 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 928 1099 15 MOBINIL, EG 36914 546 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 13240 39698 4192 AMAZON-02, US 8151 12022 3241 592 UNINET, MX 9808 10452 8754 93 CHINAMOBILE-CN China Mobile Communication 12479 7701 1714 148 UNI2-AS, ES 7545 6216 843 656 TPG-INTERNET-AP TPG Telecom Limited, AU 11492 4702 312 599 CABLEONE, US 39891 4554 283 64 ALJAWWALSTC-AS, SA 9498 4308 531 277 BBIL-AP BHARTI Airtel Ltd., IN 18403 4242 347 25 FPT-AS-AP FPT Telecom Company, VN 20940 3953 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 12022 11430 UNINET, MX 9808 10452 10359 CHINAMOBILE-CN China Mobile Communications Grou 12479 7701 7553 UNI2-AS, ES 7545 6216 5560 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4554 4490 ALJAWWALSTC-AS, SA 18403 4242 4217 FPT-AS-AP FPT Telecom Company, VN 11492 4702 4103 CABLEONE, US 9498 4308 4031 BBIL-AP BHARTI Airtel Ltd., IN 7552 3920 3894 VIETEL-AS-AP Viettel Group, VN 20940 3953 3830 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 /15:2141 /16:13887 /17:8215 /18:13644 /19:24460 /20:43536 /21:51451 /22:111590 /23:101155 /24:604928 /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 6623 7701 UNI2-AS, ES 8151 6230 12022 UNINET, MX 11492 3529 4702 CABLEONE, US 6327 3417 3622 SHAW, CA 39891 3248 4554 ALJAWWALSTC-AS, SA 7155 2818 3859 VIASAT-SP-BACKBONE, US 22773 2527 3387 ASN-CXA-ALL-CCI-22773-RDC, US 16509 2351 13240 AMAZON-02, US 30036 2229 2569 MEDIACOM-ENTERPRISE-BUSINESS, US 10620 2186 3520 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) ---------------------------------------------- 1:2341 2:1501 3:642 4:9 5:4680 6:163 7:6 8:1587 9:1 11:172 12:1365 13:357 14:2515 15:352 16:282 17:367 18:918 20:513 21:4 22:188 23:7466 24:2750 25:2 27:2733 29:19 31:3219 32:36 34:83 35:205 36:2488 37:4688 38:9093 39:907 40:169 41:4234 42:1891 43:2582 44:379 45:18483 46:5021 47:293 49:1933 50:1893 51:590 52:1551 54:299 55:1087 56:11 57:250 58:2196 59:1281 60:1169 61:2808 62:2936 63:1818 64:5460 65:2176 66:4599 67:3053 68:1134 69:3816 70:1092 71:619 72:2852 74:2770 75:1606 76:614 77:2730 78:1875 79:1754 80:2198 81:2046 82:3192 83:1431 84:1840 85:3411 86:1050 87:2140 88:1278 89:4333 90:782 91:8331 92:2717 93:2896 94:4075 95:4170 96:1409 97:312 98:994 99:670 100:72 101:1385 102:3894 103:32217 104:4820 105:752 106:1044 107:2625 108:1197 109:4075 110:2235 111:3335 112:2049 113:1797 114:1967 115:2164 116:2039 117:2736 118:2876 119:1945 120:1881 121:1369 122:2745 123:2161 124:1612 125:2852 126:91 128:1567 129:949 130:1286 131:1924 132:773 133:450 134:1534 135:331 136:1304 137:1113 138:2870 139:1616 140:1569 141:1493 142:1904 143:1664 144:1096 145:500 146:2152 147:2096 148:2679 149:2887 150:1253 151:1802 152:2092 153:495 154:8290 155:1639 156:3414 157:1890 158:1288 159:2436 160:3576 161:1891 162:3735 163:2084 164:1698 165:2196 166:1452 167:1876 168:4023 169:786 170:5063 171:1007 172:4408 173:3256 174:906 175:1298 176:3662 177:4650 178:3693 179:2535 180:2592 181:4058 182:3389 183:2053 184:2082 185:21525 186:5080 187:4434 188:4209 189:4200 190:9501 191:1470 192:11207 193:9443 194:7765 195:5507 196:3302 197:3684 198:6080 199:8493 200:8067 201:6320 202:10332 203:10540 204:4522 205:3577 206:4572 207:3433 208:4207 209:5157 210:4525 211:2534 212:4517 213:3698 214:1030 215:48 216:6679 217:3135 218:1331 219:378 220:2086 221:1056 222:724 223:2349 End of report