This is an automated weekly mailing describing the state of the IPv4 Research & Education Routing Table received by NSRC's collector from Guam's network. Daily listings are sent to ren-bgp-stats-all@lists.nsrc.org. For historical data, please see https://bgp.nsrc.org. If you have any comments please contact Philip Smith . IPv4 R&E Routing Table Report 21:25 GMT Sat 15 Nov, 2025 IPv4 BGP Table (Global) as seen at Guam. Report Website: https://bgp.nsrc.org/REN Detailed Analysis: https://bgp.nsrc.org/REN/Guam/ Analysis Summary ---------------- BGP routing table entries examined: 1034901 Prefixes after maximum aggregation (per Origin AS): 393276 Deaggregation factor: 2.63 Unique aggregates announced (without unneeded subnets): 501800 Number of IPv4 prefixes with a valid ROA: 597949 Number of IPv4 prefixes with an invalid ROA: 19 Number of IPv4 prefixes with no ROA: 436933 Total ASes present in the Internet Routing Table: 77661 Prefixes per ASN: 13.33 Origin-only ASes present in the Internet Routing Table: 66429 Origin ASes announcing only one prefix: 27055 Transit ASes present in the Internet Routing Table: 11232 Transit-only ASes present in the Internet Routing Table: 572 Paths with bogon ASNs present in the IPv4 Routing Table: 54 Average AS path length visible in the Internet Routing Table: 5.4 Max AS path length visible: 52 Max AS path prepend of ASN ( 37447) 39 Prefixes from unregistered ASNs in the Routing Table: 940 Number of instances of unregistered ASNs: 970 Number of 32-bit ASNs allocated by the RIRs: 47999 Number of 32-bit ASNs visible in the Routing Table: 39347 Prefixes from 32-bit ASNs in the Routing Table: 218299 Number of bogon 32-bit ASNs visible in the Routing Table: 74 Special use prefixes present in the Routing Table: 1 Prefixes being announced from unallocated address space: 293 Number of addresses announced to Internet: 3108566945 Equivalent to 185 /8s, 72 /16s and 247 /24s Percentage of available address space announced: 84.0 Percentage of allocated address space announced: 84.0 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: 337796 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 283253 Total APNIC prefixes after maximum aggregation: 81370 APNIC Deaggregation factor: 3.48 Prefixes being announced from the APNIC address blocks: 272974 Unique aggregates announced from the APNIC address blocks: 106514 APNIC Region origin ASes present in the Internet Routing Table: 14973 APNIC Prefixes per ASN: 18.23 APNIC Region origin ASes announcing only one prefix: 4546 APNIC Region transit ASes present in the Internet Routing Table: 2030 Average APNIC Region AS path length visible: 5.5 Max APNIC Region AS path length visible: 41 Number of APNIC region 32-bit ASNs visible in the Routing Table: 10471 Number of APNIC addresses announced to Internet: 753872192 Equivalent to 44 /8s, 239 /16s and 45 /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: 301387 Total ARIN prefixes after maximum aggregation: 133926 ARIN Deaggregation factor: 2.25 Prefixes being announced from the ARIN address blocks: 300977 Unique aggregates announced from the ARIN address blocks: 145325 ARIN Region origin ASes present in the Internet Routing Table: 19375 ARIN Prefixes per ASN: 15.53 ARIN Region origin ASes announcing only one prefix: 7100 ARIN Region transit ASes present in the Internet Routing Table: 2001 Average ARIN Region AS path length visible: 4.8 Max ARIN Region AS path length visible: 35 Number of ARIN region 32-bit ASNs visible in the Routing Table: 5407 Number of ARIN addresses announced to Internet: 1345009408 Equivalent to 80 /8s, 43 /16s and 55 /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: 285852 Total RIPE prefixes after maximum aggregation: 139951 RIPE Deaggregation factor: 2.04 Prefixes being announced from the RIPE address blocks: 286391 Unique aggregates announced from the RIPE address blocks: 182772 RIPE Region origin ASes present in the Internet Routing Table: 29127 RIPE Prefixes per ASN: 9.83 RIPE Region origin ASes announcing only one prefix: 12066 RIPE Region transit ASes present in the Internet Routing Table: 4058 Average RIPE Region AS path length visible: 5.6 Max RIPE Region AS path length visible: 32 Number of RIPE region 32-bit ASNs visible in the Routing Table: 12824 Number of RIPE addresses announced to Internet: 735557633 Equivalent to 43 /8s, 215 /16s and 184 /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: 127024 Total LACNIC prefixes after maximum aggregation: 30498 LACNIC Deaggregation factor: 4.16 Prefixes being announced from the LACNIC address blocks: 123004 Unique aggregates announced from the LACNIC address blocks: 49613 LACNIC Region origin ASes present in the Internet Routing Table: 11320 LACNIC Prefixes per ASN: 10.87 LACNIC Region origin ASes announcing only one prefix: 2645 LACNIC Region transit ASes present in the Internet Routing Table: 2549 Average LACNIC Region AS path length visible: 5.9 Max LACNIC Region AS path length visible: 39 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 9298 Number of LACNIC addresses announced to Internet: 170811232 Equivalent to 10 /8s, 46 /16s and 95 /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: 36445 Total AfriNIC prefixes after maximum aggregation: 6880 AfriNIC Deaggregation factor: 5.30 Prefixes being announced from the AfriNIC address blocks: 51262 Unique aggregates announced from the AfriNIC address blocks: 17307 AfriNIC Region origin ASes present in the Internet Routing Table: 1980 AfriNIC Prefixes per ASN: 25.89 AfriNIC Region origin ASes announcing only one prefix: 698 AfriNIC Region transit ASes present in the Internet Routing Table: 385 Average AfriNIC Region AS path length visible: 6.1 Max AfriNIC Region AS path length visible: 42 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 1347 Number of AfriNIC addresses announced to Internet: 103131392 Equivalent to 6 /8s, 37 /16s and 169 /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 13533 8889 172 CHINAMOBILE-CN China Mobile Communication 7545 6086 833 584 TPG-INTERNET-AP TPG Telecom Limited, AU 4538 4901 4192 76 ERX-CERNET-BKB China Education and Resear 9498 4534 539 316 BBIL-AP BHARTI Airtel Ltd., IN 45899 4402 1874 54 VNPT-AS-VN VNPT Corp, VN 18403 4379 347 24 FPT-AS-AP FPT Telecom Company, VN 7552 4001 1332 29 VIETEL-AS-AP Viettel Group, VN 7713 3721 1044 66 TELKOMNET-AS-AP PT Telekomunikasi Indones 56046 3387 848 233 CMNET-JIANGSU-AP China Mobile communicati 24560 2938 864 509 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd., Complete listing at https://bgp.nsrc.org/REN/Guam/data-ASnet-APNIC ARIN Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 16509 14274 37284 5363 AMAZON-02, US 11492 4787 317 804 CABLEONE, US 22773 4670 3092 380 ASN-CXA-ALL-CCI-22773-RDC, US 174 4300 8762 809 COGENT-174, US 7155 3875 287 89 VIASAT-SP-BACKBONE, US 6327 3691 1320 83 SHAW, CA 396982 3285 4826 470 GOOGLE-CLOUD-PLATFORM, US 749 3217 54766 2468 DNIC-AS-00749, US 16625 2908 1244 2162 AKAMAI-AS, US 36352 2848 231 914 AS-COLOCROSSING, US Complete listing at https://bgp.nsrc.org/REN/Guam/data-ASnet-ARIN RIPE Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 12479 7290 1711 149 UNI2-AS, ES 39891 4833 298 66 ALJAWWALSTC-AS, SA 9009 4022 381 2287 M247, RO 20940 3894 3395 139 AKAMAI-ASN1, NL 12389 3175 2317 869 ROSTELECOM-AS PJSC Rostelecom. Technical 212238 2479 175 1785 CDNEXT, GB 34984 2418 363 576 TELLCOM-AS, TR 5384 2390 585 28 EMIRATES-INTERNET Emirates Internet, AE 8452 1685 1852 14 TE-AS TE-AS, EG 13188 1607 100 27 TRIOLAN, UA Complete listing at https://bgp.nsrc.org/REN/Guam/data-ASnet-RIPE LACNIC Region per AS prefix count summary ----------------------------------------- ASN No of nets /20 equiv MaxAgg Description 8151 12548 3315 578 UNINET, MX 10620 3455 463 1098 Telmex Colombia S.A., CO 13999 2505 511 345 Mega Cable, S.A. de C.V., MX 11830 1991 369 65 Instituto Costarricense de Electricidad y 28573 1376 2435 257 Claro NXT Telecomunicacoes Ltda, BR 3816 1353 789 206 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC, 11664 1343 278 31 Techtel LMDS Comunicaciones Interactivas 6147 1275 371 22 Telefonica del Peru S.A.A., PE 22884 1060 67 364 TOTAL PLAY TELECOMUNICACIONES SA DE CV, M 26615 1022 2486 56 TIM SA, BR Complete listing at https://bgp.nsrc.org/REN/Guam/data-ASnet-LACNIC AfriNIC Region per AS prefix count summary ------------------------------------------ ASN No of nets /20 equiv MaxAgg Description 24835 1985 630 32 RAYA-AS, EG 36992 1680 1509 397 ETISALAT-MISR, EG 24863 1266 389 20 LINKdotNET-AS, EG 36903 1250 554 97 MT-MPLS, MA 36935 1104 523 34 Vodafone-, EG 37069 1086 1112 11 MOBINIL, EG 29571 1070 94 22 ORANGE-COTE-IVOIRE, CI 20011 580 154 212 NTT-DATA-Inc, ZA 36914 564 82 3 KENET-AS, KE 15399 545 57 55 WANANCHI-, KE Complete listing at https://bgp.nsrc.org/REN/Guam/data-ASnet-AFRINIC Global Per AS prefix count summary ---------------------------------- ASN No of nets /20 equiv MaxAgg Description 16509 14274 37284 5363 AMAZON-02, US 9808 13533 8889 172 CHINAMOBILE-CN China Mobile Communication 8151 12548 3315 578 UNINET, MX 12479 7290 1711 149 UNI2-AS, ES 7545 6086 833 584 TPG-INTERNET-AP TPG Telecom Limited, AU 4538 4901 4192 76 ERX-CERNET-BKB China Education and Resear 39891 4833 298 66 ALJAWWALSTC-AS, SA 11492 4787 317 804 CABLEONE, US 22773 4670 3092 380 ASN-CXA-ALL-CCI-22773-RDC, US 9498 4534 539 316 BBIL-AP BHARTI Airtel Ltd., IN Complete listing at https://bgp.nsrc.org/REN/Guam/data-ASnet Global Per AS Maximum Aggregation summary ----------------------------------------- ASN No of nets Net Savings Description 9808 13533 13361 CHINAMOBILE-CN China Mobile Communications Grou 8151 12548 11970 UNINET, MX 12479 7290 7141 UNI2-AS, ES 7545 6086 5502 TPG-INTERNET-AP TPG Telecom Limited, AU 4538 4901 4825 ERX-CERNET-BKB China Education and Research Net 39891 4833 4767 ALJAWWALSTC-AS, SA 18403 4379 4355 FPT-AS-AP FPT Telecom Company, VN 45899 4402 4348 VNPT-AS-VN VNPT Corp, VN 22773 4670 4290 ASN-CXA-ALL-CCI-22773-RDC, US 9498 4534 4218 BBIL-AP BHARTI Airtel Ltd., IN Complete listing at https://bgp.nsrc.org/REN/Guam/data-CIDRnet List of Unregistered Origin ASNs (Global) ----------------------------------------- Bad AS Designation Net Originated Transit AS Transit AS Name 53775 UNALLOCATED 8.20.88.0/24 3737 AS-PTD, 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 6461 ZAYO-6461, US 395195 UNALLOCATED 8.38.115.0/24 3356 LEVEL3, US 1782 UNALLOCATED 8.42.19.0/24 3356 LEVEL3, US 54739 UNALLOCATED 8.44.198.0/23 13335 CLOUDFLARENET, US 13342 UNALLOCATED 12.17.5.0/24 174 COGENT-174, US 26345 UNALLOCATED 12.21.93.0/24 40264 TWC-40264-WI-MN-UPPERMI Complete listing at https://bgp.nsrc.org/REN/Guam/data-badAS Prefixes from the Special Purpose Address Registry (Global) ----------------------------------------------------------- Prefix Origin AS Description 192.88.99.0/24 6939 HURRICANE, US Complete listing at https://bgp.nsrc.org/REN/Guam/data-spar Advertised Unallocated Addresses -------------------------------- Unassigned Network ASN Information AS Name 23.135.216.0/24 Origin: 400565 RESERVED, ZZ 23.135.216.0/24 Transit: 3356 LEVEL3, US 23.141.0.0/24 Origin: 395350 RESERVED, ZZ 23.141.0.0/24 Transit: 11426 TWC-11426-CAROLINAS, US 23.142.24.0/24 Origin: 62164 HEYMMAN-2, CA 23.142.24.0/24 Transit: 64236 UNREAL-SERVERS, US 23.147.240.0/24 Origin: 32302 RESERVED, ZZ 23.147.240.0/24 Transit: 32787 PROLEXIC-TECHNOLOGIES-DDOS-MITIGATION-NE 23.159.56.0/24 Origin: 174 COGENT-174, US 23.159.56.0/24 Transit: 3356 LEVEL3, US Complete listing at https://bgp.nsrc.org/REN/Guam/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 /8:18 /9:14 /10:41 /11:94 /12:299 /13:583 /14:1204 /15:2116 /16:13822 /17:8448 /18:14196 /19:25561 /20:46412 /21:53512 /22:114956 /23:108365 /24:644505 /25:147 /26:110 /27:113 /28:20 /29:66 /30:12 /31:3 /32:284 Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Total ann. Description 8151 6750 12548 UNINET, MX 12479 6232 7290 UNI2-AS, ES 11492 3600 4787 CABLEONE, US 39891 3521 4833 ALJAWWALSTC-AS, SA 6327 3478 3691 SHAW, CA 22773 2997 4670 ASN-CXA-ALL-CCI-22773-RDC, US 7155 2833 3875 VIASAT-SP-BACKBONE, US 16509 2440 14274 AMAZON-02, US 30036 2319 2663 MEDIACOM-ENTERPRISE-BUSINESS, US 10620 2210 3455 Telmex Colombia S.A., CO Complete listing at https://bgp.nsrc.org/REN/Guam/data-sXXas-nos Number of /24s announced per /8 block (Global) ---------------------------------------------- 1:2518 2:1629 3:960 4:12 5:5073 6:189 7:6 8:1547 9:6 11:172 12:1233 13:564 14:2664 15:410 16:303 17:391 18:906 20:599 21:4 22:188 23:8076 24:2612 25:2 27:2857 29:19 31:3458 32:35 33:1 34:85 35:278 36:4560 37:4600 38:10433 39:1183 40:459 41:4524 42:1958 43:2948 44:407 45:19491 46:5242 47:394 49:2183 50:2059 51:592 52:1624 54:352 55:1109 56:11 57:297 58:2397 59:1397 60:1217 61:3192 62:3124 63:1748 64:5946 65:2117 66:5916 67:3224 68:1491 69:4221 70:1031 71:633 72:2972 74:2923 75:1525 76:600 77:2761 78:1912 79:1797 80:2319 81:2127 82:3737 83:1513 84:2027 85:3590 86:1201 87:2405 88:1339 89:4633 90:840 91:8450 92:2890 93:3007 94:4285 95:4565 96:1500 97:312 98:954 99:760 100:68 101:1371 102:4470 103:32749 104:5468 105:1039 106:930 107:2803 108:1199 109:4303 110:2295 111:3935 112:2788 113:1949 114:2109 115:2352 116:2193 117:3133 118:3104 119:2121 120:2408 121:1597 122:2965 123:2421 124:1750 125:2963 126:125 128:1621 129:983 130:1513 131:2282 132:785 133:462 134:1635 135:364 136:1496 137:1281 138:2915 139:1676 140:1726 141:1572 142:2255 143:2137 144:1326 145:635 146:2196 147:2127 148:2786 149:2913 150:1302 151:2668 152:2273 153:670 154:8466 155:2244 156:3569 157:2204 158:1415 159:2664 160:3792 161:2013 162:4004 163:2341 164:1962 165:2578 166:1322 167:2127 168:3897 169:790 170:5496 171:1101 172:4480 173:3429 174:910 175:1385 176:3782 177:4829 178:4318 179:2356 180:2836 181:4370 182:3839 183:2559 184:2097 185:21786 186:5503 187:4783 188:4405 189:4504 190:9761 191:1566 192:11492 193:9544 194:7986 195:5772 196:3274 197:3344 198:6112 199:6098 200:8273 201:6425 202:10993 203:10892 204:4616 205:3657 206:4468 207:3761 208:4283 209:5336 210:5127 211:2883 212:4954 213:4020 214:1040 215:54 216:7165 217:3489 218:1641 219:622 220:2209 221:1270 222:1020 223:3174 End of report