* BGP Routing Table Analysis Reports *
Routing Table Report 04:00 +10GMT Wed 11 Jul, 2012
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/current/
Analysis Summary
----------------
BGP routing table entries examined: 415762
Prefixes after maximum aggregation: 175785
Deaggregation factor: 2.37
Unique aggregates announced to Internet: 202476
Total ASes present in the Internet Routing Table: 41474
Prefixes per ASN: 10.02
Origin-only ASes present in the Internet Routing Table: 33329
Origin ASes announcing only one prefix: 15682
Transit ASes present in the Internet Routing Table: 5561
Transit-only ASes present in the Internet Routing Table: 136
Average AS path length visible in the Internet Routing Table: 4.5
Max AS path length visible: 27
Max AS path prepend of ASN ( 51742) 24
Prefixes from unregistered ASNs in the Routing Table: 394
Unregistered ASNs in the Routing Table: 126
Number of 32-bit ASNs allocated by the RIRs: 2958
Number of 32-bit ASNs visible in the Routing Table: 2584
Prefixes from 32-bit ASNs in the Routing Table: 6656
Special use prefixes present in the Routing Table: 1
Prefixes being announced from unallocated address space: 150
Number of addresses announced to Internet: 2563453868
Equivalent to 152 /8s, 203 /16s and 51 /24s
Percentage of available address space announced: 69.2
Percentage of allocated address space announced: 69.2
Percentage of available address space allocated: 99.9
Percentage of address space in use by end-sites: 93.1
Total number of prefixes smaller than registry allocations: 143778
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 101763
Total APNIC prefixes after maximum aggregation: 32753
APNIC Deaggregation factor: 3.11
Prefixes being announced from the APNIC address blocks: 102222
Unique aggregates announced from the APNIC address blocks: 42107
APNIC Region origin ASes present in the Internet Routing Table: 4716
APNIC Prefixes per ASN: 21.68
APNIC Region origin ASes announcing only one prefix: 1243
APNIC Region transit ASes present in the Internet Routing Table: 747
Average APNIC Region AS path length visible: 4.6
Max APNIC Region AS path length visible: 26
Number of APNIC region 32-bit ASNs visible in the Routing Table: 248
Number of APNIC addresses announced to Internet: 704184704
Equivalent to 41 /8s, 249 /16s and 1 /24s
Percentage of available APNIC address space announced: 82.3
APNIC AS Blocks 4608-4864, 7467-7722, 9216-10239, 17408-18431
(pre-ERX allocations) 23552-24575, 37888-38911, 45056-46079, 55296-56319,
58368-59391, 131072-133119
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, 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: 152318
Total ARIN prefixes after maximum aggregation: 77494
ARIN Deaggregation factor: 1.97
Prefixes being announced from the ARIN address blocks: 153339
Unique aggregates announced from the ARIN address blocks: 68374
ARIN Region origin ASes present in the Internet Routing Table: 15194
ARIN Prefixes per ASN: 10.09
ARIN Region origin ASes announcing only one prefix: 5760
ARIN Region transit ASes present in the Internet Routing Table: 1603
Average ARIN Region AS path length visible: 4.0
Max ARIN Region AS path length visible: 24
Number of ARIN region 32-bit ASNs visible in the Routing Table: 17
Number of ARIN addresses announced to Internet: 1071065984
Equivalent to 63 /8s, 215 /16s and 43 /24s
Percentage of available ARIN address space announced: 56.7
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, 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: 103669
Total RIPE prefixes after maximum aggregation: 55071
RIPE Deaggregation factor: 1.88
Prefixes being announced from the RIPE address blocks: 105853
Unique aggregates announced from the RIPE address blocks: 66917
RIPE Region origin ASes present in the Internet Routing Table: 16652
RIPE Prefixes per ASN: 6.36
RIPE Region origin ASes announcing only one prefix: 8079
RIPE Region transit ASes present in the Internet Routing Table: 2692
Average RIPE Region AS path length visible: 5.0
Max RIPE Region AS path length visible: 27
Number of RIPE region 32-bit ASNs visible in the Routing Table: 1702
Number of RIPE addresses announced to Internet: 635208068
Equivalent to 37 /8s, 220 /16s and 129 /24s
Percentage of available RIPE address space announced: 92.3
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, 196608-199679
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: 42099
Total LACNIC prefixes after maximum aggregation: 8356
LACNIC Deaggregation factor: 5.04
Prefixes being announced from the LACNIC address blocks: 44692
Unique aggregates announced from the LACNIC address blocks: 21750
LACNIC Region origin ASes present in the Internet Routing Table: 1606
LACNIC Prefixes per ASN: 27.83
LACNIC Region origin ASes announcing only one prefix: 428
LACNIC Region transit ASes present in the Internet Routing Table: 309
Average LACNIC Region AS path length visible: 4.7
Max LACNIC Region AS path length visible: 25
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 612
Number of LACNIC addresses announced to Internet: 112076072
Equivalent to 6 /8s, 174 /16s and 37 /24s
Percentage of available LACNIC address space announced: 66.8
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,
191/8, 200/8, 201/8,
AfriNIC Region Analysis Summary
-------------------------------
Prefixes being announced by AfriNIC Region ASes: 9059
Total AfriNIC prefixes after maximum aggregation: 2056
AfriNIC Deaggregation factor: 4.41
Prefixes being announced from the AfriNIC address blocks: 9506
Unique aggregates announced from the AfriNIC address blocks: 3199
AfriNIC Region origin ASes present in the Internet Routing Table: 552
AfriNIC Prefixes per ASN: 17.22
AfriNIC Region origin ASes announcing only one prefix: 172
AfriNIC Region transit ASes present in the Internet Routing Table: 124
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: 5
Number of AfriNIC addresses announced to Internet: 40504320
Equivalent to 2 /8s, 106 /16s and 12 /24s
Percentage of available AfriNIC address space announced: 40.2
AfriNIC AS Blocks 36864-37887, 327680-328703 & 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
4766 2740 11119 1236 Korea Telecom (KIX)
17974 2215 558 79 PT TELEKOMUNIKASI INDONESIA
7545 1690 301 87 TPG Internet Pty Ltd
4755 1613 388 162 TATA Communications formerly
9829 1303 1085 28 BSNL National Internet Backbo
9583 1166 87 507 Sify Limited
7552 1121 1062 11 Vietel Corporation
4808 1118 2053 320 CNCGROUP IP network: China169
24560 1036 385 165 Bharti Airtel Ltd., Telemedia
9498 981 291 67 BHARTI Airtel Ltd.
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 3389 3773 187 bellsouth.net, inc.
7029 3316 986 161 Windstream Communications Inc
18566 2088 382 181 Covad Communications
1785 1934 681 131 PaeTec Communications, Inc.
22773 1661 2911 121 Cox Communications, Inc.
20115 1651 1573 616 Charter Communications
4323 1575 1043 384 Time Warner Telecom
30036 1384 264 784 Mediacom Communications Corp
7018 1259 10044 823 AT&T WorldNet Services
11492 1190 216 356 Cable One
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 1692 544 16 Corbina telecom
2118 1288 97 14 EUnet/RELCOM Autonomous Syste
12479 797 741 92 Uni2 Autonomous System
34984 728 189 174 BILISIM TELEKOM
6830 708 2292 442 UPC Distribution Services
31148 700 37 9 FreeNet ISP
20940 674 215 522 Akamai Technologies European
8551 580 364 61 Bezeq International
13188 501 100 10 Educational Network
3320 496 8443 408 Deutsche Telekom AG
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
28573 1985 1214 55 NET Servicos de Comunicao S.A
10620 1984 345 205 TVCABLE BOGOTA
6503 1529 434 67 AVANTEL, S.A.
8151 1490 3066 345 UniNet S.A. de C.V.
7303 1454 934 194 Telecom Argentina Stet-France
27947 709 74 94 Telconet S.A
11172 644 91 75 Servicios Alestra S.A de C.V
3816 589 246 90 Empresa Nacional de Telecomun
22047 583 326 15 VTR PUNTO NET S.A.
14117 571 65 60 Telefonica del Sur S.A.
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
8452 1159 958 13 TEDATA
24863 862 274 32 LINKdotNET AS number
6713 504 649 18 Itissalat Al-MAGHRIB
24835 286 80 8 RAYA Telecom - Egypt
3741 262 905 223 The Internet Solution
12258 197 28 62 Vodacom Internet Company
33776 181 12 18 Starcomms Nigeria Limited
29975 167 571 19 Vodacom
16637 165 152 85 MTN Network Solutions
15706 159 32 6 Sudatel Internet Exchange Aut
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 3389 3773 187 bellsouth.net, inc.
7029 3316 986 161 Windstream Communications Inc
4766 2740 11119 1236 Korea Telecom (KIX)
17974 2215 558 79 PT TELEKOMUNIKASI INDONESIA
18566 2088 382 181 Covad Communications
28573 1985 1214 55 NET Servicos de Comunicao S.A
10620 1984 345 205 TVCABLE BOGOTA
1785 1934 681 131 PaeTec Communications, Inc.
8402 1692 544 16 Corbina telecom
7545 1690 301 87 TPG Internet Pty Ltd
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 3316 3155 Windstream Communications Inc
17974 2215 2136 PT TELEKOMUNIKASI INDONESIA
28573 1985 1930 NET Servicos de Comunicao S.A
18566 2088 1907 Covad Communications
1785 1934 1803 PaeTec Communications, Inc.
10620 1984 1779 TVCABLE BOGOTA
8402 1692 1676 Corbina telecom
7545 1690 1603 TPG Internet Pty Ltd
22773 1661 1540 Cox Communications, Inc.
4766 2740 1504 Korea Telecom (KIX)
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
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
14764 UNALLOCATED 12.108.237.0/24 7018 AT&T WorldNet Servic
33649 UNALLOCATED 12.111.112.0/24 19029 New Edge Networks
29760 UNALLOCATED 12.145.34.0/23 7018 AT&T WorldNet Servic
Complete listing at http://thyme.rand.apnic.net/current/data-badAS
Prefixes from private and non-routed address space (Global)
-----------------------------------------------------------
Prefix Origin AS Description
198.18.0.0/15 14744 Internap Network Services
Complete listing at http://thyme.rand.apnic.net/current/data-dsua
Advertised Unallocated Addresses
--------------------------------
Network Origin AS Description
14.192.0.0/22 45464 Room 201, TGU Bldg
14.192.4.0/22 45464 Room 201, TGU Bldg
14.192.8.0/22 45464 Room 201, TGU Bldg
14.192.12.0/22 45464 Room 201, TGU Bldg
14.192.16.0/22 45464 Room 201, TGU Bldg
14.192.20.0/22 45464 Room 201, TGU Bldg
14.192.24.0/22 45464 Room 201, TGU Bldg
14.192.28.0/22 45464 Room 201, TGU Bldg
27.112.114.0/24 23884 Proimage Engineering and Comm
62.61.220.0/24 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 /10:28 /11:82 /12:236
/13:471 /14:842 /15:1524 /16:12302 /17:6360 /18:10760
/19:20818 /20:29727 /21:31456 /22:41045 /23:39159 /24:217062
/25:1239 /26:1482 /27:866 /28:168 /29:63 /30:18
/31:0 /32:23
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
7029 2673 3316 Windstream Communications Inc
18566 2038 2088 Covad Communications
6389 1868 3389 bellsouth.net, inc.
8402 1390 1692 Corbina telecom
30036 1321 1384 Mediacom Communications Corp
11492 1153 1190 Cable One
22773 1092 1661 Cox Communications, Inc.
6503 1055 1529 AVANTEL, S.A.
1785 1044 1934 PaeTec Communications, Inc.
8452 934 1159 TEDATA
Complete listing at http://thyme.rand.apnic.net/current/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:576 2:769 3:1 4:13 5:111 6:3
8:435 12:2011 13:1 14:637 15:12 16:3
17:5 20:24 23:185 24:1791 27:1319 31:1015
32:56 33:2 34:2 36:8 37:595 38:821
39:1 40:128 41:3013 42:141 44:3 46:1531
47:2 49:422 50:549 52:13 54:13 55:7
56:1 57:34 58:976 59:528 60:248 61:1334
62:927 63:2035 64:4239 65:2241 66:4487 67:2005
68:1146 69:3186 70:981 71:512 72:1839 74:2597
75:475 76:333 77:935 78:893 79:489 80:1226
81:947 82:658 83:525 84:498 85:1149 86:427
87:933 88:350 89:1674 90:302 91:5018 92:575
93:1324 94:1563 95:1242 96:380 97:317 98:891
99:38 100:19 101:254 103:1241 106:115 107:188
108:367 109:1437 110:789 111:939 112:418 113:634
114:651 115:893 116:927 117:728 118:902 119:1218
120:351 121:800 122:1664 123:1090 124:1378 125:1266
128:552 129:186 130:264 131:633 132:300 133:22
134:246 135:61 136:218 137:239 138:337 139:176
140:495 141:244 142:431 143:372 144:532 145:77
146:519 147:292 148:771 149:319 150:156 151:184
152:475 153:176 154:17 155:434 156:220 157:382
158:192 159:622 160:342 161:268 162:380 163:191
164:668 165:413 166:588 167:475 168:911 169:126
170:896 171:146 172:5 173:1732 174:595 175:434
176:559 177:900 178:1531 180:1291 181:101 182:1033
183:242 184:533 186:1923 187:1082 188:1352 189:1595
190:5790 192:5995 193:5518 194:4537 195:3436 196:1184
197:170 198:3658 199:4852 200:5905 201:1988 202:8715
203:8651 204:4353 205:2528 206:2782 207:2803 208:4041
209:3626 210:2785 211:1561 212:1947 213:1829 214:895
215:83 216:5082 217:1554 218:553 219:338 220:1227
221:569 222:338 223:348
End of report
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