IPv4 R&E Routing Table Report 23:05 GMT Tue 21 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: 905476 Prefixes after maximum aggregation (per Origin AS): 345331 Deaggregation factor: 2.62 Unique aggregates announced (without unneeded subnets): 445849 Number of IPv4 prefixes with a valid ROA: 374604 Number of IPv4 prefixes with an invalid ROA: 1547 Number of IPv4 prefixes with no ROA: 529325 Total ASes present in the Internet Routing Table: 73977 Prefixes per ASN: 12.24 Origin-only ASes present in the Internet Routing Table: 63514 Origin ASes announcing only one prefix: 26097 Transit ASes present in the Internet Routing Table: 10463 Transit-only ASes present in the Internet Routing Table: 445 Paths with bogon ASNs present in the IPv4 Routing Table: 30 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: 1064 Number of instances of unregistered ASNs: 1080 Number of 32-bit ASNs allocated by the RIRs: 41226 Number of 32-bit ASNs visible in the Routing Table: 34155 Prefixes from 32-bit ASNs in the Routing Table: 166852 Number of bogon 32-bit ASNs visible in the Routing Table: 38 Special use prefixes present in the Routing Table: 0 Prefixes being announced from unallocated address space: 578 Number of addresses announced to Internet: 3061737728 Equivalent to 182 /8s, 126 /16s and 105 /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: 304659 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 234429 Total APNIC prefixes after maximum aggregation: 68248 APNIC Deaggregation factor: 3.43 Prefixes being announced from the APNIC address blocks: 229411 Unique aggregates announced from the APNIC address blocks: 97694 APNIC Region origin ASes present in the Internet Routing Table: 13225 APNIC Prefixes per ASN: 17.35 APNIC Region origin ASes announcing only one prefix: 3842 APNIC Region transit ASes present in the Internet Routing Table: 1779 Average APNIC Region AS path length visible: 4.2 Max APNIC Region AS path length visible: 25 Number of APNIC region 32-bit ASNs visible in the Routing Table: 8566 Number of APNIC addresses announced to Internet: 773200896 Equivalent to 46 /8s, 22 /16s and 28 /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: 266451 Total ARIN prefixes after maximum aggregation: 121304 ARIN Deaggregation factor: 2.20 Prefixes being announced from the ARIN address blocks: 268481 Unique aggregates announced from the ARIN address blocks: 130190 ARIN Region origin ASes present in the Internet Routing Table: 19007 ARIN Prefixes per ASN: 14.13 ARIN Region origin ASes announcing only one prefix: 6968 ARIN Region transit ASes present in the Internet Routing Table: 1889 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: 4731 Number of ARIN addresses announced to Internet: 1285556736 Equivalent to 76 /8s, 160 /16s and 10 /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: 256958 Total RIPE prefixes after maximum aggregation: 121033 RIPE Deaggregation factor: 2.12 Prefixes being announced from the RIPE address blocks: 253323 Unique aggregates announced from the RIPE address blocks: 156558 RIPE Region origin ASes present in the Internet Routing Table: 28214 RIPE Prefixes per ASN: 8.98 RIPE Region origin ASes announcing only one prefix: 12034 RIPE Region transit ASes present in the Internet Routing Table: 3984 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: 11019 Number of RIPE addresses announced to Internet: 718239488 Equivalent to 42 /8s, 207 /16s and 119 /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: 117164 Total LACNIC prefixes after maximum aggregation: 28229 LACNIC Deaggregation factor: 4.15 Prefixes being announced from the LACNIC address blocks: 116411 Unique aggregates announced from the LACNIC address blocks: 48886 LACNIC Region origin ASes present in the Internet Routing Table: 10958 LACNIC Prefixes per ASN: 10.62 LACNIC Region origin ASes announcing only one prefix: 2654 LACNIC Region transit ASes present in the Internet Routing Table: 2271 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: 8768 Number of LACNIC addresses announced to Internet: 176330752 Equivalent to 10 /8s, 130 /16s and 152 /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: 29410 Total AfriNIC prefixes after maximum aggregation: 5745 AfriNIC Deaggregation factor: 5.12 Prefixes being announced from the AfriNIC address blocks: 37272 Unique aggregates announced from the AfriNIC address blocks: 12073 AfriNIC Region origin ASes present in the Internet Routing Table: 1725 AfriNIC Prefixes per ASN: 21.61 AfriNIC Region origin ASes announcing only one prefix: 599 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: 1071 Number of AfriNIC addresses announced to Internet: 108063488 Equivalent to 6 /8s, 112 /16s and 235 /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 9455 8883 49 CHINAMOBILE-CN China Mobile Communicati 7545 5819 787 693 TPG-INTERNET-AP TPG Telecom Limited, AU 7552 3666 1331 21 VIETEL-AS-AP Viettel Group, VN 7713 3544 1043 65 TELKOMNET-AS-AP PT Telekomunikasi Indon 45899 3371 1872 94 VNPT-AS-VN VNPT Corp, VN 9498 2789 499 238 BBIL-AP BHARTI Airtel Ltd., IN 24560 2357 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 7954 10726 2898 AMAZON-02, US 11492 4526 300 620 CABLEONE, US 7155 3958 270 43 VIASAT-SP-BACKBONE, US 22773 3645 3063 283 ASN-CXA-ALL-CCI-22773-RDC, US 6327 3503 1320 63 SHAW, CA 16625 3303 1663 2416 AKAMAI-AS, US 749 3036 50571 2303 DNIC-AS-00749, US 396982 2609 3586 355 GOOGLE-CLOUD-PLATFORM, US 7018 2583 24139 1577 ATT-INTERNET4, US 30036 2533 363 425 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 7065 1706 146 UNI2-AS, ES 39891 4561 269 58 ALJAWWALSTC-AS, SA 20940 4033 3399 167 AKAMAI-ASN1, NL 8551 3898 370 37 BEZEQ-INTERNATIONAL-AS Bezeqint Interne 12389 2897 2292 911 ROSTELECOM-AS, RU 9009 2650 252 1374 M247, RO 34984 2264 359 608 TELLCOM-AS, TR 6849 2081 339 19 UKRTELNET, UA 58224 1840 946 560 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 11150 3348 582 Uninet S.A. de C.V., MX 10620 3477 507 862 Telmex Colombia S.A., CO 11830 2264 369 65 Instituto Costarricense de Electricidad 13999 2261 376 603 Mega Cable, S.A. de C.V., MX 28573 1346 2326 259 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 1492 393 19 LINKdotNET-AS, EG 36992 1347 1517 277 ETISALAT-MISR, EG 36903 1242 550 99 MT-MPLS, MA 29571 1001 67 53 ORANGE-COTE-IVOIRE, CI 36935 886 520 42 Vodafone-, EG 6713 550 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 11150 3348 582 Uninet S.A. de C.V., MX 9808 9455 8883 49 CHINAMOBILE-CN China Mobile Communicati 16509 7954 10726 2898 AMAZON-02, US 12479 7065 1706 146 UNI2-AS, ES 7545 5819 787 693 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4561 269 58 ALJAWWALSTC-AS, SA 11492 4526 300 620 CABLEONE, US 20940 4033 3399 167 AKAMAI-ASN1, NL 7155 3958 270 43 VIASAT-SP-BACKBONE, US 8551 3898 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 9455 9406 CHINAMOBILE-CN China Mobile Communications Grou 12479 7065 6919 UNI2-AS, ES 7545 5819 5126 TPG-INTERNET-AP TPG Telecom Limited, AU 16509 7954 5056 AMAZON-02, US 39891 4561 4503 ALJAWWALSTC-AS, SA 7155 3958 3915 VIASAT-SP-BACKBONE, US 11492 4526 3906 CABLEONE, US 20940 4033 3866 AKAMAI-ASN1, NL 8551 3898 3861 BEZEQ-INTERNATIONAL-AS Bezeqint Internet Backbo 7552 3666 3645 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 /14:1200 /15:2072 /16:13427 /17:8200 /18:13725 /19:24826 /20:42908 /21:50915 /22:108975 /23:96715 /24:541458 /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 6125 7065 UNI2-AS, ES 8151 5155 11150 Uninet S.A. de C.V., MX 39891 3552 4561 ALJAWWALSTC-AS, SA 11492 3442 4526 CABLEONE, US 8551 3370 3898 BEZEQ-INTERNATIONAL-AS Bezeqint Internet Backbo 6327 3311 3503 SHAW, CA 7155 3035 3958 VIASAT-SP-BACKBONE, US 22773 2702 3645 ASN-CXA-ALL-CCI-22773-RDC, US 30036 2190 2533 MEDIACOM-ENTERPRISE-BUSINESS, US 10620 2022 3477 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) ---------------------------------------------- 1:1651 2:1228 3:168 4:5 5:4340 6:115 7:5 8:1512 9:1 11:172 12:1583 13:380 14:2342 15:293 16:103 17:366 18:392 20:249 21:4 22:188 23:6060 24:2491 25:6 27:2521 29:19 31:2501 32:107 34:8 35:104 36:1922 37:4619 38:4176 39:839 40:153 41:4029 42:1055 43:2305 44:301 45:16341 46:4145 47:374 49:1735 50:1821 51:386 52:1582 54:397 55:868 56:8 57:88 58:1665 59:1115 60:986 61:2461 62:2627 63:1934 64:5663 65:2316 66:4911 67:3039 68:1350 69:4136 70:1256 71:661 72:2984 74:2589 75:1456 76:604 77:2403 78:1841 79:3171 80:2075 81:1726 82:1500 83:1240 84:1506 85:2988 86:756 87:1965 88:1232 89:3613 90:610 91:7667 92:2013 93:2590 94:3505 95:3932 96:1335 97:345 98:1163 99:744 100:75 101:1298 102:2618 103:30924 104:4505 105:485 106:849 107:2538 108:909 109:4389 110:2081 111:3277 112:2039 113:1490 114:1610 115:2012 116:1879 117:2555 118:2297 119:1926 120:1739 121:1047 122:2589 123:2135 124:1562 125:2345 128:1266 129:1059 130:988 131:1997 132:827 133:412 134:1908 135:294 136:862 137:935 138:2571 139:1540 140:1182 141:1469 142:1416 143:1494 144:1208 145:351 146:1865 147:1557 148:2274 149:1897 150:868 151:1142 152:1952 153:484 154:3920 155:1419 156:1676 157:1300 158:1005 159:2261 160:2544 161:1450 162:3533 163:1486 164:1581 165:1684 166:840 167:1737 168:3817 169:922 170:4553 171:884 172:3506 173:2957 174:1035 175:1161 176:3713 177:4598 178:3503 179:2164 180:2412 181:3396 182:3242 183:1934 184:2354 185:20053 186:4653 187:3928 188:4125 189:3524 190:9102 191:1452 192:10929 193:8809 194:7225 195:5102 196:3129 197:2404 198:5882 199:6091 200:7655 201:5875 202:10262 203:9990 204:4600 205:3513 206:3785 207:3385 208:4066 209:4817 210:4189 211:2385 212:4103 213:3549 214:1091 215:55 216:6587 217:2642 218:1264 219:399 220:1766 221:972 222:668 223:2123 End of report