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 09 May, 2026 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: 1077313 Prefixes after maximum aggregation (per Origin AS): 402600 Deaggregation factor: 2.68 Unique aggregates announced (without unneeded subnets): 516914 Number of IPv4 prefixes with a valid ROA: 659956 Number of IPv4 prefixes with an invalid ROA: 20 Number of IPv4 prefixes with no ROA: 417337 Total ASes present in the Internet Routing Table: 78588 Prefixes per ASN: 13.71 Origin-only ASes present in the Internet Routing Table: 67241 Origin ASes announcing only one prefix: 27077 Transit ASes present in the Internet Routing Table: 11347 Transit-only ASes present in the Internet Routing Table: 594 Paths with bogon ASNs present in the IPv4 Routing Table: 52 Average AS path length visible in the Internet Routing Table: 5.5 Max AS path length visible: 215 Max AS path prepend of ASN (205624) 210 Prefixes from unregistered ASNs in the Routing Table: 994 Number of instances of unregistered ASNs: 1024 Number of 32-bit ASNs allocated by the RIRs: 49709 Number of 32-bit ASNs visible in the Routing Table: 40650 Prefixes from 32-bit ASNs in the Routing Table: 237748 Number of bogon 32-bit ASNs visible in the Routing Table: 76 Special use prefixes present in the Routing Table: 1 Prefixes being announced from unallocated address space: 311 Number of addresses announced to Internet: 3108790914 Equivalent to 185 /8s, 76 /16s and 98 /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: 353185 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 296277 Total APNIC prefixes after maximum aggregation: 83954 APNIC Deaggregation factor: 3.53 Prefixes being announced from the APNIC address blocks: 282926 Unique aggregates announced from the APNIC address blocks: 107963 APNIC Region origin ASes present in the Internet Routing Table: 15281 APNIC Prefixes per ASN: 18.51 APNIC Region origin ASes announcing only one prefix: 4649 APNIC Region transit ASes present in the Internet Routing Table: 2074 Average APNIC Region AS path length visible: 5.5 Max APNIC Region AS path length visible: 44 Number of APNIC region 32-bit ASNs visible in the Routing Table: 10815 Number of APNIC addresses announced to Internet: 753175360 Equivalent to 44 /8s, 228 /16s and 139 /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: 305932 Total ARIN prefixes after maximum aggregation: 136578 ARIN Deaggregation factor: 2.24 Prefixes being announced from the ARIN address blocks: 304920 Unique aggregates announced from the ARIN address blocks: 147660 ARIN Region origin ASes present in the Internet Routing Table: 19454 ARIN Prefixes per ASN: 15.67 ARIN Region origin ASes announcing only one prefix: 7123 ARIN Region transit ASes present in the Internet Routing Table: 1986 Average ARIN Region AS path length visible: 4.9 Max ARIN Region AS path length visible: 35 Number of ARIN region 32-bit ASNs visible in the Routing Table: 5579 Number of ARIN addresses announced to Internet: 1347888642 Equivalent to 80 /8s, 87 /16s and 38 /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, 393216-404380 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: 293436 Total RIPE prefixes after maximum aggregation: 143427 RIPE Deaggregation factor: 2.05 Prefixes being announced from the RIPE address blocks: 296663 Unique aggregates announced from the RIPE address blocks: 191485 RIPE Region origin ASes present in the Internet Routing Table: 29500 RIPE Prefixes per ASN: 10.06 RIPE Region origin ASes announcing only one prefix: 12188 RIPE Region transit ASes present in the Internet Routing Table: 4091 Average RIPE Region AS path length visible: 5.7 Max RIPE Region AS path length visible: 215 Number of RIPE region 32-bit ASNs visible in the Routing Table: 13418 Number of RIPE addresses announced to Internet: 733477504 Equivalent to 43 /8s, 183 /16s and 250 /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: 139130 Total LACNIC prefixes after maximum aggregation: 30935 LACNIC Deaggregation factor: 4.50 Prefixes being announced from the LACNIC address blocks: 133405 Unique aggregates announced from the LACNIC address blocks: 50282 LACNIC Region origin ASes present in the Internet Routing Table: 11410 LACNIC Prefixes per ASN: 11.69 LACNIC Region origin ASes announcing only one prefix: 2442 LACNIC Region transit ASes present in the Internet Routing Table: 2605 Average LACNIC Region AS path length visible: 5.9 Max LACNIC Region AS path length visible: 69 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 9447 Number of LACNIC addresses announced to Internet: 169761728 Equivalent to 10 /8s, 30 /16s and 91 /24s LACNIC AS Blocks 26592-26623, 27648-28671, 52224-53247, 61440-61951, 64099-64197, 262144-275868 + 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: 41544 Total AfriNIC prefixes after maximum aggregation: 7110 AfriNIC Deaggregation factor: 5.84 Prefixes being announced from the AfriNIC address blocks: 59088 Unique aggregates announced from the AfriNIC address blocks: 19253 AfriNIC Region origin ASes present in the Internet Routing Table: 2028 AfriNIC Prefixes per ASN: 29.14 AfriNIC Region origin ASes announcing only one prefix: 675 AfriNIC Region transit ASes present in the Internet Routing Table: 396 Average AfriNIC Region AS path length visible: 6.1 Max AfriNIC Region AS path length visible: 63 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 1391 Number of AfriNIC addresses announced to Internet: 104328192 Equivalent to 6 /8s, 55 /16s and 236 /24s AfriNIC AS Blocks 36864-37887, 327680-330751 & 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 14052 9122 156 CHINAMOBILE-CN China Mobile Communication 7545 5881 826 480 TPG-INTERNET-AP TPG Telecom Limited, AU 4538 4949 4192 74 ERX-CERNET-BKB China Education and Resear 9498 4935 551 321 BBIL-AP BHARTI Airtel Ltd., IN 18403 4568 347 26 FPT-AS-AP FPT Telecom Company, VN 45899 4456 1873 54 VNPT-AS-VN VNPT Corp, VN 7552 4053 1332 28 VIETEL-AS-AP Viettel Group, VN 7713 3693 1044 64 TELKOMNET-AS-AP PT Telekomunikasi Indones 56046 3678 907 228 CMNET-JIANGSU-AP China Mobile communicati 17561 3467 218 586 LCS-AS-AP LARUS Limited, HK 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 14941 41296 5706 AMAZON-02 - Amazon.com, Inc., US 22773 4777 3099 361 ASN-CXA-ALL-CCI-22773-RDC - Cox Communica 11492 4638 308 1055 CABLEONE - CABLE ONE, INC., US 7155 3867 286 90 VIASAT-SP-BACKBONE - ViaSat,Inc., US 6327 3719 1305 75 SHAW - Shaw Communications, CA 174 3714 8756 841 COGENT-174 - Cogent Communications, LLC, 396982 3334 4865 503 GOOGLE-CLOUD-PLATFORM - Google LLC, US 749 3138 54728 2389 DNIC-AS-00749 - United States Department 36352 2917 222 905 AS-COLOCROSSING - HostPapa, US 7029 2639 2542 917 WINDSTREAM - Windstream Communications LL 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 7186 1711 149 UNI2-AS, ES 39891 4975 307 72 ALJAWWALSTC-AS, SA 9009 3895 358 2304 M247, RO 20940 3820 3389 110 AKAMAI-ASN1, NL 12389 3177 2321 875 ROSTELECOM-AS PJSC Rostelecom. Technical 212238 2769 202 2041 CDNEXT, GB 34984 2499 368 588 TELLCOM-AS, TR 8452 1714 1852 17 TE-AS TE-AS, EG 203020 1655 252 831 HOSTROYALE, IN 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 12769 3266 636 UNINET, MX 10620 3429 450 1105 Telmex Colombia S.A., CO 13999 2419 506 350 Mega Cable, S.A. de C.V., MX 11830 1937 369 65 Instituto Costarricense de Electricidad y 28573 1589 2431 268 Claro NXT Telecomunicacoes Ltda, BR 11664 1450 277 34 Techtel LMDS Comunicaciones Interactivas 3816 1342 770 213 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC, 6147 1225 379 23 INTEGRATEL PERU S.A.A., PE 28202 1093 52 9 MASTER SA, BR 22884 1074 71 363 TOTAL PLAY TELECOMUNICACIONES SA DE CV, M 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 2027 649 36 RAYA-AS, EG 36992 1860 1533 334 ETISALAT-MISR, EG 37457 1659 385 28 Telkom-Internet, ZA 20011 1289 191 315 NTT-DATA-Inc, ZA 24863 1270 389 16 LINKdotNET-AS, EG 36935 1237 520 41 Vodafone-, EG 36903 1232 555 98 MT-MPLS, MA 37069 1116 1100 11 MOBINIL, EG 29571 1070 70 18 ORANGE-COTE-IVOIRE, CI 328608 575 54 154 Africa-on-Cloud-AS, ZA 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 14941 41296 5706 AMAZON-02 - Amazon.com, Inc., US 9808 14052 9122 156 CHINAMOBILE-CN China Mobile Communication 8151 12769 3266 636 UNINET, MX 12479 7186 1711 149 UNI2-AS, ES 7545 5881 826 480 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4975 307 72 ALJAWWALSTC-AS, SA 4538 4949 4192 74 ERX-CERNET-BKB China Education and Resear 9498 4935 551 321 BBIL-AP BHARTI Airtel Ltd., IN 22773 4777 3099 361 ASN-CXA-ALL-CCI-22773-RDC - Cox Communica 11492 4638 308 1055 CABLEONE - CABLE ONE, INC., US 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 14052 13896 CHINAMOBILE-CN China Mobile Communications Grou 8151 12769 12133 UNINET, MX 12479 7186 7037 UNI2-AS, ES 7545 5881 5401 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4975 4903 ALJAWWALSTC-AS, SA 4538 4949 4875 ERX-CERNET-BKB China Education and Research Net 9498 4935 4614 BBIL-AP BHARTI Airtel Ltd., IN 18403 4568 4542 FPT-AS-AP FPT Telecom Company, VN 22773 4777 4416 ASN-CXA-ALL-CCI-22773-RDC - Cox Communications 45899 4456 4402 VNPT-AS-VN VNPT Corp, VN 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 395729 UNALLOCATED 8.28.58.0/24 32787 PROLEXIC-TECHNOLOGIES-D 395729 UNALLOCATED 8.28.60.0/24 32787 PROLEXIC-TECHNOLOGIES-D 396894 UNALLOCATED 8.28.201.0/24 3356 LEVEL3 - Level 3 Parent 394936 UNALLOCATED 8.33.224.0/24 22442 HOU-PHONOSCOPE - Phonos 395195 UNALLOCATED 8.38.115.0/24 3356 LEVEL3 - Level 3 Parent 1782 UNALLOCATED 8.42.19.0/24 3356 LEVEL3 - Level 3 Parent 13342 UNALLOCATED 12.17.5.0/24 174 COGENT-174 - Cogent Com 26345 UNALLOCATED 12.21.93.0/24 40264 TWC-40264-WI-MN-UPPERMI 396831 UNALLOCATED 12.23.198.0/24 33491 COMCAST-33491 - Comcast 395476 UNALLOCATED 12.36.194.0/24 7018 ATT-INTERNET4 - AT&T En 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 - Hurricane Electric LLC, US Complete listing at https://bgp.nsrc.org/REN/Guam/data-spar Advertised Unallocated Addresses -------------------------------- Unassigned Network ASN Information AS Name 23.137.48.0/24 Origin: 16904 ARVIG-16904 - Arvig Enterprises Inc., US 23.137.48.0/24 Transit: 174 COGENT-174 - Cogent Communications, LLC, 23.137.200.0/24 Origin: 16276 OVH, FR 23.137.200.0/24 Transit: 3605 ERX-KUENTOS-AS Guam Cablevision, LLC., G 23.140.216.0/24 Origin: 27176 DATAWAGON - DataWagon LLC, US 23.140.216.0/24 Transit: 20278 NEXEON - Nexeon Technologies, Inc., US 23.141.0.0/24 Origin: 395350 RESERVED, ZZ 23.141.0.0/24 Transit: 11426 TWC-11426-CAROLINAS - Charter Communicat 23.142.24.0/24 Origin: 62164 HEYMMAN-2, CA 23.142.24.0/24 Transit: 64236 UNREAL-SERVERS - UnReal Servers, LLC, 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 /8:16 /9:14 /10:39 /11:95 /12:298 /13:585 /14:1193 /15:2108 /16:13748 /17:8528 /18:14036 /19:26406 /20:47750 /21:53889 /22:115636 /23:113733 /24:678509 /25:77 /26:84 /27:112 /28:41 /29:62 /30:9 /31:3 /32:342 Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Total ann. Description 8151 6976 12769 UNINET, MX 12479 6123 7186 UNI2-AS, ES 39891 3660 4975 ALJAWWALSTC-AS, SA 11492 3505 4638 CABLEONE - CABLE ONE, INC., US 6327 3499 3719 SHAW - Shaw Communications, CA 22773 3058 4777 ASN-CXA-ALL-CCI-22773-RDC - Cox Communications Inc., US 7155 2822 3867 VIASAT-SP-BACKBONE - ViaSat,Inc., US 16509 2690 14941 AMAZON-02 - Amazon.com, Inc., US 30036 2261 2608 MEDIACOM-ENTERPRISE-BUSINESS - Mediacom Communications Corp, US 10620 2233 3429 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) ---------------------------------------------- 1:2567 2:2020 3:1003 4:7 5:5199 6:199 7:6 8:1502 9:43 11:172 12:1172 13:708 14:2779 15:464 16:208 17:444 18:922 20:631 21:4 22:188 23:8341 24:2781 25:2 27:2872 28:1 29:19 31:3618 32:40 34:91 35:288 36:4772 37:4482 38:10796 39:1297 40:439 41:4742 42:2227 43:3257 44:450 45:20777 46:4989 47:434 48:127 49:2278 50:2010 51:694 52:1319 54:282 55:1020 56:11 57:329 58:2588 59:1620 60:1184 61:3405 62:3186 63:1696 64:6406 65:2145 66:6135 67:3267 68:1507 69:4214 70:1054 71:616 72:3178 74:3072 75:1501 76:596 77:2968 78:2040 79:1814 80:2391 81:2281 82:4203 83:1463 84:2159 85:3846 86:1097 87:2660 88:1342 89:4815 90:814 91:8566 92:2801 93:3056 94:4503 95:4779 96:1451 97:311 98:946 99:831 100:70 101:1652 102:5247 103:32929 104:5381 105:2332 106:921 107:2941 108:1276 109:4331 110:2305 111:4205 112:3209 113:2108 114:2311 115:2360 116:2203 117:3532 118:3113 119:2181 120:2771 121:1636 122:3046 123:2461 124:1851 125:3053 126:126 128:1600 129:1019 130:1676 131:2594 132:896 133:486 134:1693 135:607 136:1545 137:1378 138:3647 139:1664 140:1796 141:1754 142:2569 143:2149 144:1779 145:638 146:2198 147:2269 148:2808 149:3178 150:1382 151:2919 152:2342 153:1631 154:9889 155:2314 156:5039 157:2361 158:1581 159:2877 160:3914 161:1969 162:4082 163:2589 164:2467 165:2707 166:1277 167:2330 168:4219 169:896 170:5854 171:1165 172:4782 173:3470 174:889 175:1400 176:4022 177:5783 178:4438 179:2642 180:3168 181:4740 182:4054 183:2858 184:2004 185:22088 186:6573 187:5531 188:4634 189:4708 190:10024 191:2110 192:11588 193:9676 194:8015 195:6029 196:3646 197:3894 198:6185 199:6089 200:8500 201:6573 202:11225 203:10954 204:4765 205:3712 206:4491 207:3856 208:4384 209:5441 210:5219 211:2941 212:5137 213:4141 214:1038 215:47 216:7309 217:3634 218:2015 219:651 220:2330 221:1342 222:1442 223:3494 End of report