IPv4 R&E Routing Table Report 23:05 GMT Wed 22 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: 905796 Prefixes after maximum aggregation (per Origin AS): 345409 Deaggregation factor: 2.62 Unique aggregates announced (without unneeded subnets): 445954 Number of IPv4 prefixes with a valid ROA: 374630 Number of IPv4 prefixes with an invalid ROA: 1484 Number of IPv4 prefixes with no ROA: 529682 Total ASes present in the Internet Routing Table: 74008 Prefixes per ASN: 12.24 Origin-only ASes present in the Internet Routing Table: 63541 Origin ASes announcing only one prefix: 26105 Transit ASes present in the Internet Routing Table: 10467 Transit-only ASes present in the Internet Routing Table: 441 Paths with bogon ASNs present in the IPv4 Routing Table: 26 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: 1057 Number of instances of unregistered ASNs: 1063 Number of 32-bit ASNs allocated by the RIRs: 41235 Number of 32-bit ASNs visible in the Routing Table: 34177 Prefixes from 32-bit ASNs in the Routing Table: 166929 Number of bogon 32-bit ASNs visible in the Routing Table: 18 Special use prefixes present in the Routing Table: 0 Prefixes being announced from unallocated address space: 580 Number of addresses announced to Internet: 3061923840 Equivalent to 182 /8s, 129 /16s and 64 /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: 304950 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 234450 Total APNIC prefixes after maximum aggregation: 68254 APNIC Deaggregation factor: 3.43 Prefixes being announced from the APNIC address blocks: 229380 Unique aggregates announced from the APNIC address blocks: 97817 APNIC Region origin ASes present in the Internet Routing Table: 13231 APNIC Prefixes per ASN: 17.34 APNIC Region origin ASes announcing only one prefix: 3841 APNIC Region transit ASes present in the Internet Routing Table: 1783 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: 8569 Number of APNIC addresses announced to Internet: 773225984 Equivalent to 46 /8s, 22 /16s and 126 /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: 266475 Total ARIN prefixes after maximum aggregation: 121343 ARIN Deaggregation factor: 2.20 Prefixes being announced from the ARIN address blocks: 268557 Unique aggregates announced from the ARIN address blocks: 130166 ARIN Region origin ASes present in the Internet Routing Table: 19015 ARIN Prefixes per ASN: 14.12 ARIN Region origin ASes announcing only one prefix: 6969 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: 4734 Number of ARIN addresses announced to Internet: 1285584640 Equivalent to 76 /8s, 160 /16s and 119 /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: 257167 Total RIPE prefixes after maximum aggregation: 121053 RIPE Deaggregation factor: 2.12 Prefixes being announced from the RIPE address blocks: 253592 Unique aggregates announced from the RIPE address blocks: 156546 RIPE Region origin ASes present in the Internet Routing Table: 28235 RIPE Prefixes per ASN: 8.98 RIPE Region origin ASes announcing only one prefix: 12039 RIPE Region transit ASes present in the Internet Routing Table: 3982 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: 11034 Number of RIPE addresses announced to Internet: 718318592 Equivalent to 42 /8s, 208 /16s and 172 /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: 117230 Total LACNIC prefixes after maximum aggregation: 28240 LACNIC Deaggregation factor: 4.15 Prefixes being announced from the LACNIC address blocks: 116463 Unique aggregates announced from the LACNIC address blocks: 48901 LACNIC Region origin ASes present in the Internet Routing Table: 10962 LACNIC Prefixes per ASN: 10.62 LACNIC Region origin ASes announcing only one prefix: 2661 LACNIC Region transit ASes present in the Internet Routing Table: 2273 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: 8774 Number of LACNIC addresses announced to Internet: 176396544 Equivalent to 10 /8s, 131 /16s and 153 /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: 29417 Total AfriNIC prefixes after maximum aggregation: 5747 AfriNIC Deaggregation factor: 5.12 Prefixes being announced from the AfriNIC address blocks: 37224 Unique aggregates announced from the AfriNIC address blocks: 12072 AfriNIC Region origin ASes present in the Internet Routing Table: 1720 AfriNIC Prefixes per ASN: 21.64 AfriNIC Region origin ASes announcing only one prefix: 595 AfriNIC Region transit ASes present in the Internet Routing Table: 336 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: 1066 Number of AfriNIC addresses announced to Internet: 108049664 Equivalent to 6 /8s, 112 /16s and 181 /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 5821 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 3276 1871 92 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 7957 10723 2911 AMAZON-02, US 11492 4514 299 642 CABLEONE, US 7155 3955 270 43 VIASAT-SP-BACKBONE, US 22773 3644 3062 283 ASN-CXA-ALL-CCI-22773-RDC, US 6327 3503 1320 63 SHAW, CA 16625 3297 1653 2424 AKAMAI-AS, US 749 3036 50571 2303 DNIC-AS-00749, US 396982 2609 3586 355 GOOGLE-CLOUD-PLATFORM, US 7018 2581 24139 1576 ATT-INTERNET4, US 30036 2535 363 416 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 7074 1706 146 UNI2-AS, ES 39891 4561 269 58 ALJAWWALSTC-AS, SA 20940 4038 3399 167 AKAMAI-ASN1, NL 8551 3896 370 37 BEZEQ-INTERNATIONAL-AS Bezeqint Interne 12389 2897 2292 911 ROSTELECOM-AS, RU 9009 2670 253 1386 M247, RO 34984 2263 359 608 TELLCOM-AS, TR 6849 2161 339 19 UKRTELNET, UA 58224 1846 949 546 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 11153 3348 582 Uninet S.A. de C.V., MX 10620 3466 504 871 Telmex Colombia S.A., CO 11830 2264 369 65 Instituto Costarricense de Electricidad 13999 2264 377 604 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 1026 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 1493 393 19 LINKdotNET-AS, EG 36992 1346 1517 278 ETISALAT-MISR, EG 36903 1242 550 99 MT-MPLS, MA 29571 1002 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 11153 3348 582 Uninet S.A. de C.V., MX 9808 9455 8883 49 CHINAMOBILE-CN China Mobile Communicati 16509 7957 10723 2911 AMAZON-02, US 12479 7074 1706 146 UNI2-AS, ES 7545 5821 787 693 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4561 269 58 ALJAWWALSTC-AS, SA 11492 4514 299 642 CABLEONE, US 20940 4038 3399 167 AKAMAI-ASN1, NL 7155 3955 270 43 VIASAT-SP-BACKBONE, US 8551 3896 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 7074 6928 UNI2-AS, ES 7545 5821 5128 TPG-INTERNET-AP TPG Telecom Limited, AU 16509 7957 5046 AMAZON-02, US 39891 4561 4503 ALJAWWALSTC-AS, SA 7155 3955 3912 VIASAT-SP-BACKBONE, US 11492 4514 3872 CABLEONE, US 20940 4038 3871 AKAMAI-ASN1, NL 8551 3896 3859 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 /17:8206 /18:13726 /19:24833 /20:42859 /21:50956 /22:108987 /23:96763 /24:541712 /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 6131 7074 UNI2-AS, ES 8151 5162 11153 Uninet S.A. de C.V., MX 39891 3552 4561 ALJAWWALSTC-AS, SA 11492 3430 4514 CABLEONE, US 8551 3368 3896 BEZEQ-INTERNATIONAL-AS Bezeqint Internet Backbo 6327 3311 3503 SHAW, CA 7155 3032 3955 VIASAT-SP-BACKBONE, US 22773 2700 3644 ASN-CXA-ALL-CCI-22773-RDC, US 30036 2192 2535 MEDIACOM-ENTERPRISE-BUSINESS, US 10620 2022 3466 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) ---------------------------------------------- 1:1652 2:1229 3:169 4:5 5:4340 6:115 7:5 8:1512 9:1 11:172 12:1583 13:387 14:2342 15:291 16:107 17:366 18:390 20:249 21:4 22:188 23:6064 24:2490 25:4 27:2524 29:19 31:2503 32:107 34:8 35:104 36:1922 37:4600 38:4204 39:839 40:153 41:4022 42:1054 43:2304 44:301 45:16364 46:4154 47:371 49:1734 50:1825 51:386 52:1582 54:398 55:868 56:8 57:86 58:1666 59:1114 60:985 61:2460 62:2624 63:1939 64:5652 65:2316 66:4907 67:3033 68:1351 69:4133 70:1255 71:661 72:2984 74:2589 75:1458 76:603 77:2401 78:1840 79:3169 80:2069 81:1725 82:1497 83:1241 84:1512 85:2991 86:757 87:1966 88:1233 89:3613 90:611 91:7674 92:2023 93:2586 94:3513 95:3950 96:1335 97:348 98:1163 99:743 100:75 101:1299 102:2621 103:30961 104:4507 105:485 106:847 107:2542 108:911 109:4392 110:2083 111:3282 112:2040 113:1479 114:1611 115:2018 116:1881 117:2556 118:2298 119:1926 120:1741 121:1047 122:2590 123:2135 124:1563 125:2347 128:1261 129:1060 130:987 131:1990 132:824 133:413 134:1908 135:294 136:862 137:942 138:2541 139:1541 140:1183 141:1472 142:1416 143:1479 144:1209 145:351 146:1863 147:1554 148:2272 149:1903 150:867 151:1138 152:1954 153:487 154:3955 155:1421 156:1679 157:1299 158:1011 159:2259 160:2544 161:1444 162:3535 163:1488 164:1581 165:1681 166:847 167:1736 168:3778 169:923 170:4548 171:883 172:3504 173:2957 174:1034 175:1160 176:3716 177:4612 178:3618 179:2192 180:2413 181:3400 182:3240 183:1934 184:2357 185:20075 186:4650 187:3943 188:4128 189:3556 190:9115 191:1452 192:10926 193:8816 194:7233 195:5107 196:3059 197:2388 198:5890 199:6091 200:7656 201:5873 202:10257 203:9988 204:4600 205:3510 206:3789 207:3382 208:4066 209:4815 210:4189 211:2385 212:4099 213:3551 214:1090 215:55 216:6588 217:2644 218:1264 219:400 220:1767 221:972 222:668 223:2123 End of report