IPv4 R&E Routing Table Report 23:05 GMT Sun 19 Feb, 2023 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: 905274 Prefixes after maximum aggregation (per Origin AS): 345095 Deaggregation factor: 2.62 Unique aggregates announced (without unneeded subnets): 445746 Number of IPv4 prefixes with a valid ROA: 374080 Number of IPv4 prefixes with an invalid ROA: 1541 Number of IPv4 prefixes with no ROA: 529653 Total ASes present in the Internet Routing Table: 73954 Prefixes per ASN: 12.24 Origin-only ASes present in the Internet Routing Table: 63497 Origin ASes announcing only one prefix: 26067 Transit ASes present in the Internet Routing Table: 10457 Transit-only ASes present in the Internet Routing Table: 442 Paths with bogon ASNs present in the IPv4 Routing Table: 25 Average AS path length visible in the Internet Routing Table: 4.5 Max AS path length visible: 66 Max AS path prepend of ASN ( 37447) 64 Prefixes from unregistered ASNs in the Routing Table: 1055 Number of instances of unregistered ASNs: 1062 Number of 32-bit ASNs allocated by the RIRs: 41222 Number of 32-bit ASNs visible in the Routing Table: 34121 Prefixes from 32-bit ASNs in the Routing Table: 166811 Number of bogon 32-bit ASNs visible in the Routing Table: 20 Special use prefixes present in the Routing Table: 0 Prefixes being announced from unallocated address space: 576 Number of addresses announced to Internet: 3061846528 Equivalent to 182 /8s, 128 /16s and 18 /24s Percentage of available address space announced: 82.7 Percentage of allocated address space announced: 82.7 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: 304823 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 234339 Total APNIC prefixes after maximum aggregation: 68200 APNIC Deaggregation factor: 3.44 Prefixes being announced from the APNIC address blocks: 229296 Unique aggregates announced from the APNIC address blocks: 97670 APNIC Region origin ASes present in the Internet Routing Table: 13213 APNIC Prefixes per ASN: 17.35 APNIC Region origin ASes announcing only one prefix: 3828 APNIC Region transit ASes present in the Internet Routing Table: 1777 Average APNIC Region AS path length visible: 4.2 Max APNIC Region AS path length visible: 40 Number of APNIC region 32-bit ASNs visible in the Routing Table: 8550 Number of APNIC addresses announced to Internet: 773187840 Equivalent to 46 /8s, 21 /16s and 233 /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, 131072-151865 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: 266332 Total ARIN prefixes after maximum aggregation: 121122 ARIN Deaggregation factor: 2.20 Prefixes being announced from the ARIN address blocks: 268350 Unique aggregates announced from the ARIN address blocks: 130101 ARIN Region origin ASes present in the Internet Routing Table: 19006 ARIN Prefixes per ASN: 14.12 ARIN Region origin ASes announcing only one prefix: 6972 ARIN Region transit ASes present in the Internet Routing Table: 1892 Average ARIN Region AS path length visible: 4.3 Max ARIN Region AS path length visible: 35 Number of ARIN region 32-bit ASNs visible in the Routing Table: 4725 Number of ARIN addresses announced to Internet: 1285454592 Equivalent to 76 /8s, 158 /16s and 123 /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, 393216-401308 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, 47/8, 48/8, 50/8, 52/8, 53/8, 54/8, 55/8, 56/8, 57/8, 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: 257146 Total RIPE prefixes after maximum aggregation: 121031 RIPE Deaggregation factor: 2.12 Prefixes being announced from the RIPE address blocks: 253513 Unique aggregates announced from the RIPE address blocks: 156537 RIPE Region origin ASes present in the Internet Routing Table: 28218 RIPE Prefixes per ASN: 8.98 RIPE Region origin ASes announcing only one prefix: 12030 RIPE Region transit ASes present in the Internet Routing Table: 3981 Average RIPE Region AS path length visible: 4.7 Max RIPE Region AS path length visible: 32 Number of RIPE region 32-bit ASNs visible in the Routing Table: 11016 Number of RIPE addresses announced to Internet: 718416640 Equivalent to 42 /8s, 210 /16s and 43 /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 196608-213403 RIPE Address Blocks 2/8, 5/8, 25/8, 31/8, 37/8, 46/8, 51/8, 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: 117052 Total LACNIC prefixes after maximum aggregation: 28239 LACNIC Deaggregation factor: 4.15 Prefixes being announced from the LACNIC address blocks: 116307 Unique aggregates announced from the LACNIC address blocks: 48910 LACNIC Region origin ASes present in the Internet Routing Table: 10957 LACNIC Prefixes per ASN: 10.61 LACNIC Region origin ASes announcing only one prefix: 2644 LACNIC Region transit ASes present in the Internet Routing Table: 2268 Average LACNIC Region AS path length visible: 5.3 Max LACNIC Region AS path length visible: 48 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 8766 Number of LACNIC addresses announced to Internet: 176399616 Equivalent to 10 /8s, 131 /16s and 165 /24s LACNIC AS Blocks 26592-26623, 27648-28671, 52224-53247, 61440-61951, 64099-64197, 262144-273820 + 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: 29350 Total AfriNIC prefixes after maximum aggregation: 5735 AfriNIC Deaggregation factor: 5.12 Prefixes being announced from the AfriNIC address blocks: 37232 Unique aggregates announced from the AfriNIC address blocks: 12080 AfriNIC Region origin ASes present in the Internet Routing Table: 1718 AfriNIC Prefixes per ASN: 21.67 AfriNIC Region origin ASes announcing only one prefix: 593 AfriNIC Region transit ASes present in the Internet Routing Table: 335 Average AfriNIC Region AS path length visible: 5.0 Max AfriNIC Region AS path length visible: 66 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 1064 Number of AfriNIC addresses announced to Internet: 108040960 Equivalent to 6 /8s, 112 /16s and 147 /24s AfriNIC AS Blocks 36864-37887, 327680-329727 & ERX transfers AfriNIC Address Blocks 41/8, 45/8, 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 9443 8883 48 CHINAMOBILE-CN China Mobile Communicati 7545 5835 788 706 TPG-INTERNET-AP TPG Telecom Limited, AU 7552 3662 1331 21 VIETEL-AS-AP Viettel Group, VN 7713 3544 1043 65 TELKOMNET-AS-AP PT Telekomunikasi Indon 45899 3378 1872 94 VNPT-AS-VN VNPT Corp, VN 9498 2778 499 238 BBIL-AP BHARTI Airtel Ltd., IN 24560 2356 836 443 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd 4766 2298 11250 586 KIXS-AS-KR Korea Telecom, KR 4755 2162 440 212 TATACOMM-AS TATA Communications formerl 45090 2148 1438 79 TENCENT-NET-AP Shenzhen Tencent Compute 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 7935 10724 2883 AMAZON-02, US 11492 4535 300 597 CABLEONE, US 7155 3952 279 45 VIASAT-SP-BACKBONE, US 22773 3649 3063 285 ASN-CXA-ALL-CCI-22773-RDC, US 6327 3503 1320 63 SHAW, CA 16625 3310 1670 2421 AKAMAI-AS, US 749 3037 50571 2304 DNIC-AS-00749, US 396982 2605 3583 352 GOOGLE-CLOUD-PLATFORM, US 7018 2597 24143 1577 ATT-INTERNET4, US 30036 2541 365 410 MEDIACOM-ENTERPRISE-BUSINESS, 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 7076 1706 146 UNI2-AS, ES 39891 4561 269 58 ALJAWWALSTC-AS, SA 20940 4033 3399 167 AKAMAI-ASN1, NL 8551 3895 370 37 BEZEQ-INTERNATIONAL-AS Bezeqint Interne 12389 2897 2292 911 ROSTELECOM-AS, RU 9009 2665 254 1383 M247, RO 34984 2265 359 609 TELLCOM-AS, TR 6849 2256 339 19 UKRTELNET, UA 58224 1839 946 559 TCI, IR 13188 1607 100 27 TRIOLAN, UA 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 11138 3348 584 Uninet S.A. de C.V., MX 10620 3476 507 862 Telmex Colombia S.A., CO 11830 2263 369 64 Instituto Costarricense de Electricidad 13999 2257 375 606 Mega Cable, S.A. de C.V., MX 28573 1350 2328 261 Claro NXT Telecomunicacoes Ltda, BR 6503 1298 339 518 Axtel, S.A.B. de C.V., MX 3816 1292 746 156 COLOMBIA TELECOMUNICACIONES S.A. ESP, C 6147 1151 370 22 Telefonica del Peru S.A.A., PE 11664 1097 180 457 Techtel LMDS Comunicaciones Interactiva 26615 1020 2498 45 TIM SA, BR 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 1542 533 30 RAYA-AS, EG 24863 1485 393 19 LINKdotNET-AS, EG 36992 1348 1517 277 ETISALAT-MISR, EG 36903 1242 550 99 MT-MPLS, MA 29571 1000 67 53 ORANGE-COTE-IVOIRE, CI 36935 886 520 42 Vodafone-, EG 6713 549 1861 34 IAM-AS, MA 15399 527 54 46 WANANCHI-, KE 24757 497 73 5 EthioNet-AS, ET 37342 493 32 1 MOVITEL, MZ 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 8151 11138 3348 584 Uninet S.A. de C.V., MX 9808 9443 8883 48 CHINAMOBILE-CN China Mobile Communicati 16509 7935 10724 2883 AMAZON-02, US 12479 7076 1706 146 UNI2-AS, ES 7545 5835 788 706 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4561 269 58 ALJAWWALSTC-AS, SA 11492 4535 300 597 CABLEONE, US 20940 4033 3399 167 AKAMAI-ASN1, NL 7155 3952 279 45 VIASAT-SP-BACKBONE, US 8551 3895 370 37 BEZEQ-INTERNATIONAL-AS Bezeqint Interne Complete listing at https://bgp.nsrc.org/REN/Singapore/data-ASnet Global Per AS Maximum Aggregation summary ----------------------------------------- ASN No of nets Net Savings Description 9808 9443 9395 CHINAMOBILE-CN China Mobile Communications Grou 12479 7076 6930 UNI2-AS, ES 7545 5835 5129 TPG-INTERNET-AP TPG Telecom Limited, AU 16509 7935 5052 AMAZON-02, US 39891 4561 4503 ALJAWWALSTC-AS, SA 11492 4535 3938 CABLEONE, US 7155 3952 3907 VIASAT-SP-BACKBONE, US 20940 4033 3866 AKAMAI-ASN1, NL 8551 3895 3858 BEZEQ-INTERNATIONAL-AS Bezeqint Internet Backbo 7552 3662 3641 VIETEL-AS-AP Viettel Group, VN 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 3507 UNALLOCATED 5.105.166.0/24 213035 AS-SERVERION Serverion B.V., 33123 UNALLOCATED 8.10.69.0/24 11168 SCC, US 16641 UNALLOCATED 8.10.194.0/24 3356 LEVEL3, US 16641 UNALLOCATED 8.10.210.0/24 3356 LEVEL3, US 16641 UNALLOCATED 8.12.250.0/24 3356 LEVEL3, US 12169 UNALLOCATED 8.15.207.0/24 32787 PROLEXIC-TECHNOLOGIES-DDOS-M 53775 UNALLOCATED 8.20.88.0/24 7029 WINDSTREAM, US 62828 UNALLOCATED 8.21.130.0/24 3356 LEVEL3, US 1618 UNALLOCATED 8.21.143.0/24 136796 CL-JP-AS CORELINK JAPAN, JP 393266 UNALLOCATED 8.23.52.0/24 46887 LIGHTOWER, US Complete listing at https://bgp.nsrc.org/REN/Singapore/data-badAS Advertised Unallocated Addresses -------------------------------- Unassigned Network ASN Information AS Name 23.131.185.0/24 Origin: 174 COGENT-174, US 23.131.185.0/24 Transit: 2914 NTT-LTD-2914, US 23.131.186.0/24 Origin: 174 COGENT-174, US 23.131.186.0/24 Transit: 2914 NTT-LTD-2914, US 23.131.187.0/24 Origin: 174 COGENT-174, US 23.131.187.0/24 Transit: 2914 NTT-LTD-2914, US 23.131.188.0/24 Origin: 174 COGENT-174, US 23.131.188.0/24 Transit: 2914 NTT-LTD-2914, US 23.136.112.0/24 Origin: 54835 UNASSIGNED 23.136.112.0/24 Transit: 21559 OSNET, PR 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 /9:13 /10:38 /11:103 /12:299 /13:577 /14:1201 /15:2072 /16:13432 /17:8202 /18:13713 /19:24820 /20:42876 /21:50903 /22:108926 /23:96713 /24:541361 /25:0 /26:1 /27:1 /28:0 /29:1 /30:6 /31:0 /32:0 Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Total ann. Description 12479 6136 7076 UNI2-AS, ES 8151 5143 11138 Uninet S.A. de C.V., MX 39891 3552 4561 ALJAWWALSTC-AS, SA 11492 3451 4535 CABLEONE, US 8551 3367 3895 BEZEQ-INTERNATIONAL-AS Bezeqint Internet Backbo 6327 3311 3503 SHAW, CA 7155 3027 3952 VIASAT-SP-BACKBONE, US 22773 2704 3649 ASN-CXA-ALL-CCI-22773-RDC, US 30036 2198 2541 MEDIACOM-ENTERPRISE-BUSINESS, US 6849 2102 2256 UKRTELNET, UA Complete listing at https://bgp.nsrc.org/REN/Singapore/data-sXXas-nos Number of /24s announced per /8 block (Global) ---------------------------------------------- 1:1640 2:1228 3:168 4:5 5:4334 6:114 7:5 8:1513 9:1 11:172 12:1586 13:381 14:2337 15:293 16:103 17:365 18:393 20:249 21:4 22:188 23:6055 24:2495 25:4 27:2522 29:19 31:2500 32:107 34:9 35:104 36:1918 37:4627 38:4163 39:840 40:153 41:4021 42:1059 43:2305 44:301 45:16352 46:4203 47:375 49:1733 50:1827 51:383 52:1577 54:396 55:865 56:8 57:88 58:1674 59:1113 60:987 61:2460 62:2624 63:1934 64:5662 65:2316 66:4924 67:3036 68:1350 69:4139 70:1262 71:660 72:2987 74:2592 75:1458 76:597 77:2405 78:1839 79:3173 80:2084 81:1724 82:1493 83:1243 84:1506 85:2986 86:755 87:1970 88:1234 89:3608 90:609 91:7661 92:2014 93:2590 94:3532 95:3952 96:1335 97:346 98:1162 99:744 100:75 101:1295 102:2617 103:30906 104:4496 105:485 106:844 107:2527 108:910 109:4391 110:2077 111:3279 112:2040 113:1483 114:1609 115:2014 116:1878 117:2552 118:2295 119:1925 120:1738 121:1046 122:2588 123:2136 124:1560 125:2343 128:1266 129:1059 130:988 131:2001 132:828 133:412 134:1905 135:294 136:862 137:930 138:2556 139:1542 140:1177 141:1476 142:1415 143:1472 144:1208 145:349 146:1870 147:1554 148:2259 149:1896 150:866 151:1142 152:1957 153:481 154:3906 155:1413 156:1676 157:1297 158:1004 159:2261 160:2543 161:1451 162:3540 163:1527 164:1577 165:1683 166:843 167:1737 168:3816 169:920 170:4553 171:883 172:3503 173:2967 174:1032 175:1161 176:3717 177:4554 178:3580 179:2166 180:2409 181:3399 182:3249 183:1935 184:2339 185:20040 186:4650 187:3941 188:4122 189:3516 190:9098 191:1447 192:10921 193:8814 194:7239 195:5103 196:3124 197:2406 198:5880 199:6068 200:7662 201:5874 202:10227 203:10008 204:4592 205:3508 206:3781 207:3384 208:4063 209:4798 210:4174 211:2385 212:4094 213:3547 214:1090 215:55 216:6591 217:2638 218:1256 219:400 220:1764 221:972 222:666 223:2120 End of report