[REN-BGP-stats-all] IPv4 R&E Routing Table Report - KREONet2 (R&E) view
REN Routing Table Report
cscora at bgp.nsrc.org
Wed Mar 26 20:17:02 UTC 2025
IPv4 R&E Routing Table Report 20:15 GMT Wed 26 Mar, 2025
IPv4 BGP Table (R&E) as seen at KREONet2.
Report Website: https://bgp.nsrc.org/REN
Detailed Analysis: https://bgp.nsrc.org/REN/KREONet2/
Analysis Summary
----------------
BGP routing table entries examined: 269619
Prefixes after maximum aggregation (per Origin AS): 117513
Deaggregation factor: 2.29
Unique aggregates announced (without unneeded subnets): 140830
Number of IPv4 prefixes with a valid ROA: 121910
Number of IPv4 prefixes with an invalid ROA: 18
Number of IPv4 prefixes with no ROA: 147691
Total ASes present in the Internet Routing Table: 20767
Prefixes per ASN: 12.98
Origin-only ASes present in the Internet Routing Table: 17850
Origin ASes announcing only one prefix: 7980
Transit ASes present in the Internet Routing Table: 2917
Transit-only ASes present in the Internet Routing Table: 767
Paths with bogon ASNs present in the IPv4 Routing Table: 6
Average AS path length visible in the Internet Routing Table: 5.8
Max AS path length visible: 38
Max AS path prepend of ASN ( 37447) 34
Prefixes from unregistered ASNs in the Routing Table: 269
Number of instances of unregistered ASNs: 270
Number of 32-bit ASNs allocated by the RIRs: 46097
Number of 32-bit ASNs visible in the Routing Table: 8191
Prefixes from 32-bit ASNs in the Routing Table: 31566
Number of bogon 32-bit ASNs visible in the Routing Table: 4
Special use prefixes present in the Routing Table: 1
Prefixes being announced from unallocated address space: 108
Number of addresses announced to Internet: 1559741277
Equivalent to 92 /8s, 247 /16s and 195 /24s
Percentage of available address space announced: 42.1
Percentage of allocated address space announced: 42.1
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: 86377
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 32168
Total APNIC prefixes after maximum aggregation: 7672
APNIC Deaggregation factor: 4.19
Prefixes being announced from the APNIC address blocks: 30888
Unique aggregates announced from the APNIC address blocks: 8216
APNIC Region origin ASes present in the Internet Routing Table: 1238
APNIC Prefixes per ASN: 24.95
APNIC Region origin ASes announcing only one prefix: 494
APNIC Region transit ASes present in the Internet Routing Table: 221
Average APNIC Region AS path length visible: 7.3
Max APNIC Region AS path length visible: 19
Number of APNIC region 32-bit ASNs visible in the Routing Table: 579
Number of APNIC addresses announced to Internet: 169157484
Equivalent to 10 /8s, 21 /16s and 35 /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: 125934
Total ARIN prefixes after maximum aggregation: 64814
ARIN Deaggregation factor: 1.94
Prefixes being announced from the ARIN address blocks: 123577
Unique aggregates announced from the ARIN address blocks: 66684
ARIN Region origin ASes present in the Internet Routing Table: 9360
ARIN Prefixes per ASN: 13.20
ARIN Region origin ASes announcing only one prefix: 3891
ARIN Region transit ASes present in the Internet Routing Table: 873
Average ARIN Region AS path length visible: 5.3
Max ARIN Region AS path length visible: 26
Number of ARIN region 32-bit ASNs visible in the Routing Table: 2159
Number of ARIN addresses announced to Internet: 965121761
Equivalent to 57 /8s, 134 /16s and 150 /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: 48984
Total RIPE prefixes after maximum aggregation: 26883
RIPE Deaggregation factor: 1.82
Prefixes being announced from the RIPE address blocks: 50735
Unique aggregates announced from the RIPE address blocks: 37288
RIPE Region origin ASes present in the Internet Routing Table: 4683
RIPE Prefixes per ASN: 10.83
RIPE Region origin ASes announcing only one prefix: 1971
RIPE Region transit ASes present in the Internet Routing Table: 702
Average RIPE Region AS path length visible: 5.7
Max RIPE Region AS path length visible: 26
Number of RIPE region 32-bit ASNs visible in the Routing Table: 1900
Number of RIPE addresses announced to Internet: 280919504
Equivalent to 16 /8s, 190 /16s and 125 /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: 51608
Total LACNIC prefixes after maximum aggregation: 15675
LACNIC Deaggregation factor: 3.29
Prefixes being announced from the LACNIC address blocks: 50223
Unique aggregates announced from the LACNIC address blocks: 24163
LACNIC Region origin ASes present in the Internet Routing Table: 4314
LACNIC Prefixes per ASN: 11.64
LACNIC Region origin ASes announcing only one prefix: 1511
LACNIC Region transit ASes present in the Internet Routing Table: 889
Average LACNIC Region AS path length visible: 6.0
Max LACNIC Region AS path length visible: 35
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 3394
Number of LACNIC addresses announced to Internet: 100766016
Equivalent to 6 /8s, 1 /16s and 145 /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: 10656
Total AfriNIC prefixes after maximum aggregation: 2265
AfriNIC Deaggregation factor: 4.70
Prefixes being announced from the AfriNIC address blocks: 14088
Unique aggregates announced from the AfriNIC address blocks: 4373
AfriNIC Region origin ASes present in the Internet Routing Table: 283
AfriNIC Prefixes per ASN: 49.78
AfriNIC Region origin ASes announcing only one prefix: 113
AfriNIC Region transit ASes present in the Internet Routing Table: 79
Average AfriNIC Region AS path length visible: 6.5
Max AfriNIC Region AS path length visible: 38
Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 159
Number of AfriNIC addresses announced to Internet: 43728384
Equivalent to 2 /8s, 155 /16s and 62 /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 10145 8753 87 CHINAMOBILE-CN China Mobile Communication
56046 1574 803 179 CMNET-JIANGSU-AP China Mobile communicati
56041 1542 714 78 CMNET-ZHEJIANG-AP China Mobile communicat
56047 1482 192 53 CMNET-HUNAN-AP China Mobile communication
24547 850 177 50 CMNET-V4HEBEI-AS-AP Hebei Mobile Communic
24444 777 501 74 CMNET-V4SHANDONG-AS-AP Shandong Mobile Co
2907 639 2170 465 SINET-AS Research Organization of Informa
17561 515 33 202 LCS-AS-AP LARUS Limited, HK
24445 512 497 67 CMNET-V4HENAN-AS-AP Henan Mobile Communic
45102 478 779 138 ALIBABA-CN-NET Alibaba US Technology Co.,
Complete listing at https://bgp.nsrc.org/REN/KREONet2/data-ASnet-APNIC
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
16509 12923 39640 3991 AMAZON-02, US
22773 3373 3017 175 ASN-CXA-ALL-CCI-22773-RDC, US
749 3255 54879 2506 DNIC-AS-00749, US
4155 2550 189 1548 USDA-1, US
367 2445 2904 1178 DNIC-ASBLK-00306-00371, US
36352 2331 195 1063 AS-COLOCROSSING, US
7018 2213 22905 1580 ATT-INTERNET4, US
11776 1879 257 217 ATLANTICBB-JOHNSTOWN, US
6167 1810 3549 459 CELLCO-PART, US
209 1671 4890 278 CENTURYLINK-US-LEGACY-QWEST, US
Complete listing at https://bgp.nsrc.org/REN/KREONet2/data-ASnet-ARIN
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
39891 1936 130 50 ALJAWWALSTC-AS, SA
20940 1272 100 1029 AKAMAI-ASN1, NL
25019 928 1299 129 SAUDINETSTC-AS, SA
3215 927 4886 286 France Telecom - Orange, FR
3257 927 2075 749 GTT-BACKBONE GTT, US
8452 602 1842 17 TE-AS TE-AS, EG
212238 569 41 502 CDNEXT, GB
51167 568 113 251 CONTABO, DE
203214 564 42 343 HULUMTELE, IQ
9009 543 46 483 M247, RO
Complete listing at https://bgp.nsrc.org/REN/KREONet2/data-ASnet-RIPE
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
8151 7300 2016 1002 UNINET, MX
11830 1991 369 64 Instituto Costarricense de Electricidad y
10620 1735 256 1228 Telmex Colombia S.A., CO
3816 1328 782 208 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC,
6147 1194 371 22 Telefonica del Peru S.A.A., PE
26615 1014 2503 53 TIM SA, BR
18881 880 1127 31 TELEFONICA BRASIL S.A, BR
28006 643 77 295 CORPORACION NACIONAL DE TELECOMUNICACIONE
27651 633 90 53 ENTEL CHILE S.A., CL
26599 543 2876 72 TELEFONICA BRASIL S.A, BR
Complete listing at https://bgp.nsrc.org/REN/KREONet2/data-ASnet-LACNIC
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
24863 1457 389 18 LINKdotNET-AS, EG
29571 1209 101 70 ORANGE-COTE-IVOIRE, CI
20011 980 183 284 INTERNET-SOLUTIONS, ZA
24835 805 504 37 RAYA-AS, EG
36935 687 520 41 Vodafone-, EG
36992 604 1229 126 ETISALAT-MISR, EG
36914 548 82 3 KENET-AS, KE
37069 464 1030 15 MOBINIL, EG
36903 417 195 306 MT-MPLS, MA
2018 374 318 69 TENET-1, ZA
Complete listing at https://bgp.nsrc.org/REN/KREONet2/data-ASnet-AFRINIC
Global Per AS prefix count summary
----------------------------------
ASN No of nets /20 equiv MaxAgg Description
16509 12923 39640 3991 AMAZON-02, US
9808 10145 8753 87 CHINAMOBILE-CN China Mobile Communication
8151 7300 2016 1002 UNINET, MX
22773 3373 3017 175 ASN-CXA-ALL-CCI-22773-RDC, US
749 3255 54879 2506 DNIC-AS-00749, US
4155 2550 189 1548 USDA-1, US
367 2445 2904 1178 DNIC-ASBLK-00306-00371, US
36352 2331 195 1063 AS-COLOCROSSING, US
7018 2213 22905 1580 ATT-INTERNET4, US
11830 1991 369 64 Instituto Costarricense de Electricidad y
Complete listing at https://bgp.nsrc.org/REN/KREONet2/data-ASnet
Global Per AS Maximum Aggregation summary
-----------------------------------------
ASN No of nets Net Savings Description
9808 10145 10058 CHINAMOBILE-CN China Mobile Communications Grou
8151 7300 6298 UNINET, MX
22773 3373 3198 ASN-CXA-ALL-CCI-22773-RDC, US
11830 1991 1927 Instituto Costarricense de Electricidad y Telec
39891 1936 1886 ALJAWWALSTC-AS, SA
11776 1879 1662 ATLANTICBB-JOHNSTOWN, US
56041 1542 1464 CMNET-ZHEJIANG-AP China Mobile communications c
24863 1457 1439 LINKdotNET-AS, EG
56047 1482 1429 CMNET-HUNAN-AP China Mobile communications corp
56046 1574 1395 CMNET-JIANGSU-AP China Mobile communications co
Complete listing at https://bgp.nsrc.org/REN/KREONet2/data-CIDRnet
List of Unregistered Origin ASNs (Global)
-----------------------------------------
Bad AS Designation Net Originated Transit AS Transit AS Name
22542 UNALLOCATED 8.7.205.0/24 3356 LEVEL3, US
46639 UNALLOCATED 8.17.66.0/24 701 UUNET, US
46639 UNALLOCATED 8.38.73.0/24 3356 LEVEL3, US
53966 UNALLOCATED 8.39.98.0/24 3356 LEVEL3, US
1782 UNALLOCATED 8.42.19.0/24 3356 LEVEL3, US
22542 UNALLOCATED 8.42.195.0/24 3356 LEVEL3, US
395438 UNALLOCATED 8.42.206.0/24 3356 LEVEL3, US
46639 UNALLOCATED 8.42.219.0/24 3356 LEVEL3, US
399953 UNALLOCATED 12.9.122.0/24 7018 ATT-INTERNET4, US
13342 UNALLOCATED 12.17.5.0/24 7018 ATT-INTERNET4, US
Complete listing at https://bgp.nsrc.org/REN/KREONet2/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/KREONet2/data-spar
Advertised Unallocated Addresses
--------------------------------
Unassigned Network ASN Information AS Name
23.140.216.0/24 Origin: 27176 DATAWAGON, US
23.140.216.0/24 Transit: 20278 NEXEON, US
23.141.0.0/24 Origin: 395350 RESERVED, ZZ
23.141.0.0/24 Transit: 11426 TWC-11426-CAROLINAS, US
23.152.48.0/24 Origin: 46167 RESERVED, ZZ
23.152.48.0/24 Transit: 7018 ATT-INTERNET4, US
23.158.216.0/24 Origin: 204535 PIGGYTARO-DATA, CA
23.158.216.0/24 Transit: 22427 GNET-AS, US
41.78.60.0/22 Origin: 6762 SEABONE-NET TELECOM ITALIA SPARKLE S.p.A
41.78.60.0/22 Transit: 2914 NTT-DATA-2914, US
Complete listing at https://bgp.nsrc.org/REN/KREONet2/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 /8:13 /9:10 /10:29 /11:42 /12:150
/13:218 /14:578 /15:1100 /16:7618 /17:3469 /18:4238
/19:7757 /20:12608 /21:15603 /22:28249 /23:28305 /24:159416
/25:61 /26:76 /27:35 /28:13 /29:16 /30:10
/31:0 /32:5
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
8151 3840 7300 UNINET, MX
22773 2515 3373 ASN-CXA-ALL-CCI-22773-RDC, US
16509 2328 12923 AMAZON-02, US
11830 1692 1991 Instituto Costarricense de Electricidad y Telecom., CR
39891 1081 1936 ALJAWWALSTC-AS, SA
10620 980 1735 Telmex Colombia S.A., CO
209 966 1671 CENTURYLINK-US-LEGACY-QWEST, US
19901 937 1182 BRSPD-PUBLIC, US
36352 931 2331 AS-COLOCROSSING, US
11776 881 1879 ATLANTICBB-JOHNSTOWN, US
Complete listing at https://bgp.nsrc.org/REN/KREONet2/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:65 2:490 3:593 4:5 5:832 6:150
7:5 8:641 11:171 12:998 13:293 14:137
15:301 16:241 17:5 18:879 20:173 21:4
22:188 23:2513 24:962 27:24 29:19 31:503
32:18 34:10 35:132 36:1226 37:1126 38:2334
39:543 40:54 41:994 42:214 43:215 44:29
45:4137 46:935 47:84 49:54 50:354 51:381
52:1386 54:274 55:1090 56:11 57:18 58:45
59:39 60:16 61:63 62:539 63:777 64:1896
65:1087 66:1606 67:961 68:417 69:1210 70:439
71:213 72:871 74:981 75:436 76:248 77:414
78:336 79:272 80:276 81:348 82:703 83:239
84:343 85:535 86:225 87:249 88:259 89:848
90:104 91:970 92:673 93:466 94:955 95:641
96:284 97:66 98:476 99:162 100:35 101:27
102:433 103:1261 104:1472 105:135 106:62 107:1486
108:544 109:379 110:57 111:1919 112:462 113:40
114:65 115:18 116:55 117:1048 118:171 119:132
120:1164 121:44 122:110 123:147 124:57 125:20
128:483 129:287 130:665 131:947 132:562 133:213
134:556 135:117 136:562 137:506 138:1040 139:431
140:710 141:444 142:973 143:714 144:420 145:109
146:697 147:496 148:861 149:720 150:377 151:706
152:529 153:127 154:1546 155:804 156:1353 157:375
158:508 159:720 160:930 161:719 162:1001 163:354
164:737 165:862 166:730 167:650 168:1518 169:145
170:1692 171:122 172:1413 173:819 174:254 175:53
176:441 177:1120 178:510 179:807 180:50 181:1919
182:43 183:878 184:504 185:3430 186:2482 187:1462
188:802 189:1785 190:5188 191:502 192:5146 193:1819
194:1243 195:942 196:824 197:1545 198:2704 199:4899
200:4051 201:3400 202:989 203:712 204:2165 205:1995
206:1573 207:1508 208:1377 209:1984 210:309 211:426
212:1035 213:826 214:1005 215:42 216:2498 217:446
218:522 219:20 220:20 221:301 222:32 223:736
End of report
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