Routing Table Report 04:00 +10GMT Fri 11 Nov, 2011
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/current/
Analysis Summary
----------------
BGP routing table entries examined: 381869
Prefixes after maximum aggregation: 166594
Deaggregation factor: 2.29
Unique aggregates announced to Internet: 187593
Total ASes present in the Internet Routing Table: 39287
Prefixes per ASN: 9.72
Origin-only ASes present in the Internet Routing Table: 32386
Origin ASes announcing only one prefix: 15495
Transit ASes present in the Internet Routing Table: 5286
Transit-only ASes present in the Internet Routing Table: 134
Average AS path length visible in the Internet Routing Table: 4.4
Max AS path length visible: 33
Max AS path prepend of ASN (48687) 24
Prefixes from unregistered ASNs in the Routing Table: 1659
Unregistered ASNs in the Routing Table: 871
Number of 32-bit ASNs allocated by the RIRs: 1939
Number of 32-bit ASNs visible in the Routing Table: 1615
Prefixes from 32-bit ASNs in the Routing Table: 3711
Special use prefixes present in the Routing Table: 3
Prefixes being announced from unallocated address space: 89
Number of addresses announced to Internet: 2490536192
Equivalent to 148 /8s, 114 /16s and 145 /24s
Percentage of available address space announced: 67.2
Percentage of allocated address space announced: 67.2
Percentage of available address space allocated: 100.0
Percentage of address space in use by end-sites: 91.6
Total number of prefixes smaller than registry allocations: 161351
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 95100
Total APNIC prefixes after maximum aggregation: 31117
APNIC Deaggregation factor: 3.06
Prefixes being announced from the APNIC address blocks: 91540
Unique aggregates announced from the APNIC address blocks: 38377
APNIC Region origin ASes present in the Internet Routing Table: 4605
APNIC Prefixes per ASN: 19.88
APNIC Region origin ASes announcing only one prefix: 1272
APNIC Region transit ASes present in the Internet Routing Table: 719
Average APNIC Region AS path length visible: 4.5
Max APNIC Region AS path length visible: 19
Number of APNIC region 32-bit ASNs visible in the Routing Table: 104
Number of APNIC addresses announced to Internet: 629925984
Equivalent to 37 /8s, 139 /16s and 232 /24s
Percentage of available APNIC address space announced: 79.9
APNIC AS Blocks 4608-4864, 7467-7722, 9216-10239, 17408-18431
(pre-ERX allocations) 23552-24575, 37888-38911, 45056-46079, 55296-56319,
58368-59391, 131072-132095, 132096-133119
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, 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: 146209
Total ARIN prefixes after maximum aggregation: 74411
ARIN Deaggregation factor: 1.96
Prefixes being announced from the ARIN address blocks: 118137
Unique aggregates announced from the ARIN address blocks: 48508
ARIN Region origin ASes present in the Internet Routing Table: 14746
ARIN Prefixes per ASN: 8.01
ARIN Region origin ASes announcing only one prefix: 5644
ARIN Region transit ASes present in the Internet Routing Table: 1562
Average ARIN Region AS path length visible: 4.0
Max ARIN Region AS path length visible: 25
Number of ARIN region 32-bit ASNs visible in the Routing Table: 12
Number of ARIN addresses announced to Internet: 804229312
Equivalent to 47 /8s, 239 /16s and 144 /24s
Percentage of available ARIN address space announced: 63.9
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, 393216-394239
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,
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, 173/8,
174/8, 184/8, 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: 91920
Total RIPE prefixes after maximum aggregation: 51047
RIPE Deaggregation factor: 1.80
Prefixes being announced from the RIPE address blocks: 84378
Unique aggregates announced from the RIPE address blocks: 54505
RIPE Region origin ASes present in the Internet Routing Table: 16102
RIPE Prefixes per ASN: 5.24
RIPE Region origin ASes announcing only one prefix: 7977
RIPE Region transit ASes present in the Internet Routing Table: 2541
Average RIPE Region AS path length visible: 4.7
Max RIPE Region AS path length visible: 33
Number of RIPE region 32-bit ASNs visible in the Routing Table: 1122
Number of RIPE addresses announced to Internet: 491864256
Equivalent to 29 /8s, 81 /16s and 64 /24s
Percentage of available RIPE address space announced: 79.2
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
196608-198655
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,
176/8, 178/8, 185/8, 193/8, 194/8, 195/8, 212/8,
213/8, 217/8,
LACNIC Region Analysis Summary
------------------------------
Prefixes being announced by LACNIC Region ASes: 36173
Total LACNIC prefixes after maximum aggregation: 7909
LACNIC Deaggregation factor: 4.57
Prefixes being announced from the LACNIC address blocks: 35609
Unique aggregates announced from the LACNIC address blocks: 18600
LACNIC Region origin ASes present in the Internet Routing Table: 1547
LACNIC Prefixes per ASN: 23.02
LACNIC Region origin ASes announcing only one prefix: 446
LACNIC Region transit ASes present in the Internet Routing Table: 283
Average LACNIC Region AS path length visible: 4.5
Max LACNIC Region AS path length visible: 18
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 373
Number of LACNIC addresses announced to Internet: 92950912
Equivalent to 5 /8s, 138 /16s and 81 /24s
Percentage of available LACNIC address space announced: 61.6
LACNIC AS Blocks 26592-26623, 27648-28671, 52224-53247,
262144-263167 plus ERX transfers
LACNIC Address Blocks 177/8, 179/8, 181/8, 186/8, 187/8, 189/8, 190/8,
200/8, 201/8,
AfriNIC Region Analysis Summary
-------------------------------
Prefixes being announced by AfriNIC Region ASes: 8571
Total AfriNIC prefixes after maximum aggregation: 2034
AfriNIC Deaggregation factor: 4.21
Prefixes being announced from the AfriNIC address blocks: 6656
Unique aggregates announced from the AfriNIC address blocks: 2015
AfriNIC Region origin ASes present in the Internet Routing Table: 494
AfriNIC Prefixes per ASN: 13.47
AfriNIC Region origin ASes announcing only one prefix: 156
AfriNIC Region transit ASes present in the Internet Routing Table: 108
Average AfriNIC Region AS path length visible: 4.6
Max AfriNIC Region AS path length visible: 25
Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 4
Number of AfriNIC addresses announced to Internet: 27671552
Equivalent to 1 /8s, 166 /16s and 60 /24s
Percentage of available AfriNIC address space announced: 41.2
AfriNIC AS Blocks 36864-37887, 327680-328703 & ERX transfers
AfriNIC Address Blocks 41/8, 102/8, 105/8, 197/8,
APNIC Region per AS prefix count summary
----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
4766 2512 11113 971 Korea Telecom (KIX)
17974 1646 511 36 PT TELEKOMUNIKASI INDONESIA
7545 1625 303 88 TPG Internet Pty Ltd
4755 1545 377 172 TATA Communications formerly
7552 1394 1064 7 Vietel Corporation
9829 1166 989 28 BSNL National Internet Backbo
4808 1094 2103 313 CNCGROUP IP network: China169
9583 1094 80 494 Sify Limited
24560 964 343 218 Bharti Airtel Ltd., Telemedia
18101 953 119 149 Reliance Infocom Ltd Internet
Complete listing at http://thyme.rand.apnic.net/current/data-ASnet-APNIC
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
6389 3545 3814 220 bellsouth.net, inc.
7029 2915 1016 198 Windstream Communications Inc
18566 2094 383 177 Covad Communications
1785 1847 680 122 PaeTec Communications, Inc.
4323 1621 1077 387 Time Warner Telecom
20115 1595 1546 623 Charter Communications
22773 1493 2909 103 Cox Communications, Inc.
30036 1410 255 670 Mediacom Communications Corp
19262 1395 4728 400 Verizon Global Networks
7018 1317 7030 863 AT&T WorldNet Services
Complete listing at http://thyme.rand.apnic.net/current/data-ASnet-ARIN
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
8402 1545 416 14 Corbina telecom
6830 648 1927 412 UPC Distribution Services
34984 595 110 184 BILISIM TELEKOM
20940 551 182 433 Akamai Technologies European
3320 504 8168 389 Deutsche Telekom AG
12479 480 596 9 Uni2 Autonomous System
3292 478 2074 406 TDC Tele Danmark
8866 463 133 26 Bulgarian Telecommunication C
31148 408 22 114 FreeNet ISP
8551 402 354 43 Bezeq International
Complete listing at http://thyme.rand.apnic.net/current/data-ASnet-RIPE
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
10620 1702 315 155 TVCABLE BOGOTA
28573 1491 1043 79 NET Servicos de Comunicao S.A
8151 1433 2933 349 UniNet S.A. de C.V.
7303 1238 751 173 Telecom Argentina Stet-France
27947 591 72 84 Telconet S.A
22047 580 322 17 VTR PUNTO NET S.A.
6503 565 434 67 AVANTEL, S.A.
7738 553 1050 31 Telecomunicacoes da Bahia S.A
3816 538 233 95 Empresa Nacional de Telecomun
11172 525 85 96 Servicios Alestra S.A de C.V
Complete listing at http://thyme.rand.apnic.net/current/data-ASnet-LACNIC
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
24863 794 146 36 LINKdotNET AS number
8452 658 446 12 TEDATA
15475 443 74 8 Nile Online
36992 286 415 21 Etisalat MISR
3741 281 939 230 The Internet Solution
15706 240 32 6 Sudatel Internet Exchange Aut
33776 239 13 8 Starcomms Nigeria Limited
6713 235 519 14 Itissalat Al-MAGHRIB
29571 218 17 13 Ci Telecom Autonomous system
12258 196 28 57 Vodacom Internet Company
Complete listing at http://thyme.rand.apnic.net/current/data-ASnet-AFRINIC
Global Per AS prefix count summary
----------------------------------
ASN No of nets /20 equiv MaxAgg Description
6389 3545 3814 220 bellsouth.net, inc.
7029 2915 1016 198 Windstream Communications Inc
4766 2512 11113 971 Korea Telecom (KIX)
18566 2094 383 177 Covad Communications
1785 1847 680 122 PaeTec Communications, Inc.
10620 1702 315 155 TVCABLE BOGOTA
17974 1646 511 36 PT TELEKOMUNIKASI INDONESIA
7545 1625 303 88 TPG Internet Pty Ltd
4323 1621 1077 387 Time Warner Telecom
20115 1595 1546 623 Charter Communications
Complete listing at http://thyme.rand.apnic.net/current/data-ASnet
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
7029 2915 2717 Windstream Communications Inc
18566 2094 1917 Covad Communications
1785 1847 1725 PaeTec Communications, Inc.
17974 1646 1610 PT TELEKOMUNIKASI INDONESIA
10620 1702 1547 TVCABLE BOGOTA
4766 2512 1541 Korea Telecom (KIX)
7545 1625 1537 TPG Internet Pty Ltd
8402 1545 1531 Corbina telecom
28573 1491 1412 NET Servicos de Comunicao S.A
22773 1493 1390 Cox Communications, Inc.
Complete listing at http://thyme.rand.apnic.net/current/data-CIDRnet
List of Unregistered Origin ASNs (Global)
-----------------------------------------
Bad AS Designation Network Transit AS Description
15132 UNALLOCATED 12.9.150.0/24 7018 AT&T WorldNet Servic
32567 UNALLOCATED 12.14.170.0/24 4323 Time Warner Telecom
32567 UNALLOCATED 12.25.107.0/24 4323 Time Warner Telecom
25639 UNALLOCATED 12.41.169.0/24 7018 AT&T WorldNet Servic
13317 UNALLOCATED 12.44.10.0/24 7018 AT&T WorldNet Servic
23502 UNALLOCATED 12.44.44.0/24 7018 AT&T WorldNet Servic
17300 UNALLOCATED 12.45.103.0/24 7018 AT&T WorldNet Servic
17300 UNALLOCATED 12.45.110.0/24 701 UUNET Technologies,
16476 UNALLOCATED 12.46.27.0/24 7018 AT&T WorldNet Servic
32873 UNALLOCATED 12.46.100.0/23 10912 InterNAP Network Ser
Complete listing at http://thyme.rand.apnic.net/current/data-badAS
Prefixes from private and non-routed address space (Global)
-----------------------------------------------------------
Prefix Origin AS Description
128.0.0.0/21 12654 RIPE NCC RIS Project
128.0.0.0/16 12654 RIPE NCC RIS Project
128.0.24.0/24 12654 RIPE NCC RIS Project
Complete listing at http://thyme.rand.apnic.net/current/data-dsua
Advertised Unallocated Addresses
--------------------------------
Network Origin AS Description
24.225.128.0/18 36377 Comcast Telecommunications, I
24.225.192.0/23 36377 Comcast Telecommunications, I
24.225.192.0/18 36377 Comcast Telecommunications, I
24.225.224.0/21 36377 Comcast Telecommunications, I
24.225.237.0/24 36377 Comcast Telecommunications, I
24.225.248.0/21 36377 Comcast Telecommunications, I
41.222.79.0/24 37345 MEDALLION Communications
41.223.92.0/22 36936 >>UNKNOWN<<
62.61.220.0/24 24974 Tachyon Europe BV - Wireless
62.61.221.0/24 24974 Tachyon Europe BV - Wireless
Complete listing at http://thyme.rand.apnic.net/current/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 /8:19 /9:12 /10:27 /11:81 /12:236
/13:465 /14:808 /15:1422 /16:12016 /17:6068 /18:10090
/19:19967 /20:27631 /21:27727 /22:37476 /23:35359 /24:199019
/25:1154 /26:1360 /27:758 /28:165 /29:4 /30:0
/31:0 /32:5
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
7029 2546 2915 Windstream Communications Inc
6389 2186 3545 bellsouth.net, inc.
18566 2043 2094 Covad Communications
10620 1597 1702 TVCABLE BOGOTA
8402 1521 1545 Corbina telecom
30036 1370 1410 Mediacom Communications Corp
11492 1117 1154 Cable One
1785 1057 1847 PaeTec Communications, Inc.
7011 1051 1168 Citizens Utilities
22773 955 1493 Cox Communications, Inc.
Complete listing at http://thyme.rand.apnic.net/current/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:410 2:483 4:15 5:1 6:3 8:356
12:1964 13:1 14:545 15:11 16:3 17:7
20:9 23:63 24:1682 27:1033 31:668 32:65
33:2 34:2 36:4 38:757 40:110 41:2673
42:59 44:3 46:1031 47:3 49:298 50:449
52:13 55:8 56:2 57:47 58:914 59:496
60:362 61:1126 62:1095 63:1968 64:4064 65:2303
66:4320 67:2009 68:1175 69:3142 70:905 71:386
72:1820 74:2632 75:430 76:318 77:881 78:884
79:479 80:1135 81:839 82:516 83:523 84:622
85:1147 86:398 87:935 88:356 89:1589 90:236
91:4261 92:536 93:1556 94:1301 95:1107 96:427
97:286 98:943 99:37 101:231 103:457 106:7
107:88 108:75 109:1167 110:670 111:807 112:362
113:482 114:622 115:716 116:874 117:723 118:883
119:1271 120:348 121:685 122:1577 123:1019 124:1352
125:1354 128:246 129:184 130:164 131:623 132:150
133:21 134:221 135:54 136:211 137:142 138:287
139:121 140:494 141:319 142:388 143:410 144:493
145:64 146:469 147:219 148:637 149:271 150:164
151:194 152:448 153:174 154:7 155:390 156:208
157:361 158:156 159:488 160:331 161:215 162:374
163:174 164:511 165:369 166:544 167:444 168:814
169:145 170:880 171:87 172:4 173:1736 174:702
175:421 176:296 177:372 178:1094 180:1145 181:38
182:655 183:236 184:392 185:1 186:1402 187:778
188:965 189:1152 190:5211 192:5931 193:5049 194:3553
195:3110 196:1255 197:170 198:3625 199:4212 200:5535
201:1694 202:8554 203:8540 204:4315 205:2379 206:2656
207:2819 208:4026 209:3584 210:2724 211:1461 212:2076
213:1804 214:789 215:96 216:4911 217:1603 218:565
219:343 220:1254 221:517 222:323 223:271
End of report
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