* BGP Routing Table Analysis Reports *
Routing Table Report 04:00 +10GMT Thu 05 Jul, 2012
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/current/
Analysis Summary
----------------
BGP routing table entries examined: 415001
Prefixes after maximum aggregation: 175499
Deaggregation factor: 2.36
Unique aggregates announced to Internet: 202331
Total ASes present in the Internet Routing Table: 41394
Prefixes per ASN: 10.03
Origin-only ASes present in the Internet Routing Table: 33290
Origin ASes announcing only one prefix: 15645
Transit ASes present in the Internet Routing Table: 5554
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: 388
Unregistered ASNs in the Routing Table: 123
Number of 32-bit ASNs allocated by the RIRs: 2927
Number of 32-bit ASNs visible in the Routing Table: 2550
Prefixes from 32-bit ASNs in the Routing Table: 6626
Special use prefixes present in the Routing Table: 2
Prefixes being announced from unallocated address space: 156
Number of addresses announced to Internet: 2572647596
Equivalent to 153 /8s, 87 /16s and 124 /24s
Percentage of available address space announced: 69.4
Percentage of allocated address space announced: 69.5
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: 143842
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 101319
Total APNIC prefixes after maximum aggregation: 32695
APNIC Deaggregation factor: 3.10
Prefixes being announced from the APNIC address blocks: 101777
Unique aggregates announced from the APNIC address blocks: 42103
APNIC Region origin ASes present in the Internet Routing Table: 4712
APNIC Prefixes per ASN: 21.60
APNIC Region origin ASes announcing only one prefix: 1237
APNIC Region transit ASes present in the Internet Routing Table: 750
Average APNIC Region AS path length visible: 4.6
Max APNIC Region AS path length visible: 24
Number of APNIC region 32-bit ASNs visible in the Routing Table: 242
Number of APNIC addresses announced to Internet: 703695488
Equivalent to 41 /8s, 241 /16s and 138 /24s
Percentage of available APNIC address space announced: 82.2
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: 152374
Total ARIN prefixes after maximum aggregation: 77364
ARIN Deaggregation factor: 1.97
Prefixes being announced from the ARIN address blocks: 153325
Unique aggregates announced from the ARIN address blocks: 68372
ARIN Region origin ASes present in the Internet Routing Table: 15182
ARIN Prefixes per ASN: 10.10
ARIN Region origin ASes announcing only one prefix: 5746
ARIN Region transit ASes present in the Internet Routing Table: 1597
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: 1081245824
Equivalent to 64 /8s, 114 /16s and 128 /24s
Percentage of available ARIN address space announced: 57.2
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: 103306
Total RIPE prefixes after maximum aggregation: 54931
RIPE Deaggregation factor: 1.88
Prefixes being announced from the RIPE address blocks: 105501
Unique aggregates announced from the RIPE address blocks: 66886
RIPE Region origin ASes present in the Internet Routing Table: 16622
RIPE Prefixes per ASN: 6.35
RIPE Region origin ASes announcing only one prefix: 8060
RIPE Region transit ASes present in the Internet Routing Table: 2689
Average RIPE Region AS path length visible: 4.9
Max RIPE Region AS path length visible: 27
Number of RIPE region 32-bit ASNs visible in the Routing Table: 1677
Number of RIPE addresses announced to Internet: 635145988
Equivalent to 37 /8s, 219 /16s and 143 /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: 41936
Total LACNIC prefixes after maximum aggregation: 8302
LACNIC Deaggregation factor: 5.05
Prefixes being announced from the LACNIC address blocks: 44557
Unique aggregates announced from the LACNIC address blocks: 21557
LACNIC Region origin ASes present in the Internet Routing Table: 1607
LACNIC Prefixes per ASN: 27.73
LACNIC Region origin ASes announcing only one prefix: 430
LACNIC Region transit ASes present in the Internet Routing Table: 311
Average LACNIC Region AS path length visible: 4.6
Max LACNIC Region AS path length visible: 25
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 609
Number of LACNIC addresses announced to Internet: 111759528
Equivalent to 6 /8s, 169 /16s and 80 /24s
Percentage of available LACNIC address space announced: 66.6
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,
191/8, 200/8, 201/8,
AfriNIC Region Analysis Summary
-------------------------------
Prefixes being announced by AfriNIC Region ASes: 9246
Total AfriNIC prefixes after maximum aggregation: 2153
AfriNIC Deaggregation factor: 4.29
Prefixes being announced from the AfriNIC address blocks: 9685
Unique aggregates announced from the AfriNIC address blocks: 3278
AfriNIC Region origin ASes present in the Internet Routing Table: 552
AfriNIC Prefixes per ASN: 17.55
AfriNIC Region origin ASes announcing only one prefix: 172
AfriNIC Region transit ASes present in the Internet Routing Table: 125
Average AfriNIC Region AS path length visible: 4.7
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: 40504064
Equivalent to 2 /8s, 106 /16s and 11 /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 2704 11118 1207 Korea Telecom (KIX)
17974 2048 541 75 PT TELEKOMUNIKASI INDONESIA
7545 1690 301 87 TPG Internet Pty Ltd
4755 1596 386 154 TATA Communications formerly
9829 1279 1085 28 BSNL National Internet Backbo
9583 1165 87 507 Sify Limited
7552 1124 1062 11 Vietel Corporation
4808 1099 2053 317 CNCGROUP IP network: China169
24560 1035 385 165 Bharti Airtel Ltd., Telemedia
9498 974 291 64 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 3391 3789 189 bellsouth.net, inc.
7029 3246 986 157 Windstream Communications Inc
18566 2090 382 180 Covad Communications
1785 1930 681 132 PaeTec Communications, Inc.
22773 1656 2911 121 Cox Communications, Inc.
20115 1651 1573 616 Charter Communications
4323 1575 1043 384 Time Warner Telecom
30036 1408 267 772 Mediacom Communications Corp
7018 1259 10029 824 AT&T WorldNet Services
11492 1191 216 354 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 1697 544 16 Corbina telecom
2118 1288 97 14 EUnet/RELCOM Autonomous Syste
12479 782 731 91 Uni2 Autonomous System
34984 724 189 175 BILISIM TELEKOM
31148 693 37 9 FreeNet ISP
6830 689 2234 437 UPC Distribution Services
20940 684 219 529 Akamai Technologies European
8551 579 364 61 Bezeq International
13188 504 100 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
10620 1983 345 204 TVCABLE BOGOTA
28573 1930 1213 54 NET Servicos de Comunicao S.A
6503 1528 418 66 AVANTEL, S.A.
8151 1491 3066 342 UniNet S.A. de C.V.
7303 1453 933 193 Telecom Argentina Stet-France
27947 709 74 94 Telconet S.A
11172 639 91 74 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 567 65 59 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 1217 958 13 TEDATA
24863 864 274 32 LINKdotNET AS number
6713 504 649 18 Itissalat Al-MAGHRIB
24835 293 80 8 RAYA Telecom - Egypt
3741 262 905 223 The Internet Solution
33776 210 12 21 Starcomms Nigeria Limited
12258 197 28 62 Vodacom Internet Company
29571 173 16 9 Ci Telecom Autonomous system
16637 167 664 87 MTN Network Solutions
29975 167 571 19 Vodacom
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 3391 3789 189 bellsouth.net, inc.
7029 3246 986 157 Windstream Communications Inc
4766 2704 11118 1207 Korea Telecom (KIX)
18566 2090 382 180 Covad Communications
17974 2048 541 75 PT TELEKOMUNIKASI INDONESIA
10620 1983 345 204 TVCABLE BOGOTA
1785 1930 681 132 PaeTec Communications, Inc.
28573 1930 1213 54 NET Servicos de Comunicao S.A
8402 1697 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 3246 3089 Windstream Communications Inc
17974 2048 1973 PT TELEKOMUNIKASI INDONESIA
18566 2090 1910 Covad Communications
28573 1930 1876 NET Servicos de Comunicao S.A
1785 1930 1798 PaeTec Communications, Inc.
10620 1983 1779 TVCABLE BOGOTA
8402 1697 1681 Corbina telecom
7545 1690 1603 TPG Internet Pty Ltd
22773 1656 1535 Cox Communications, Inc.
4766 2704 1497 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
128.0.0.0/21 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
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 /9:13 /10:28 /11:83 /12:236
/13:464 /14:840 /15:1513 /16:12296 /17:6366 /18:10771
/19:20885 /20:29642 /21:31381 /22:41096 /23:38997 /24:216535
/25:1230 /26:1476 /27:858 /28:167 /29:64 /30:18
/31:0 /32:23
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
7029 2626 3246 Windstream Communications Inc
18566 2040 2090 Covad Communications
6389 1871 3391 bellsouth.net, inc.
8402 1391 1697 Corbina telecom
30036 1345 1408 Mediacom Communications Corp
11492 1154 1191 Cable One
22773 1087 1656 Cox Communications, Inc.
6503 1059 1528 AVANTEL, S.A.
1785 1041 1930 PaeTec Communications, Inc.
8452 990 1217 TEDATA
Complete listing at http://thyme.rand.apnic.net/current/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:572 2:752 3:1 4:13 5:126 6:3
8:432 12:2009 13:1 14:633 15:12 16:3
17:5 20:24 23:180 24:1791 27:1316 31:999
32:56 33:2 34:2 36:9 37:587 38:816
39:1 40:128 41:3085 42:141 44:3 46:1445
47:2 49:417 50:555 52:13 54:12 55:7
56:1 57:34 58:975 59:501 60:254 61:1231
62:966 63:2036 64:4259 65:2255 66:4490 67:2052
68:1153 69:3197 70:981 71:510 72:1837 74:2599
75:473 76:331 77:926 78:884 79:487 80:1190
81:948 82:662 83:526 84:495 85:1171 86:425
87:933 88:341 89:1728 90:299 91:4980 92:573
93:1216 94:1560 95:1243 96:379 97:318 98:903
99:39 100:19 101:253 103:1218 106:101 107:188
108:361 109:1414 110:783 111:937 112:421 113:629
114:649 115:830 116:929 117:731 118:936 119:1232
120:350 121:699 122:1668 123:1100 124:1396 125:1258
128:555 129:188 130:263 131:635 132:300 133:22
134:244 135:61 136:216 137:239 138:336 139:174
140:494 141:246 142:433 143:371 144:531 145:76
146:508 147:288 148:698 149:318 150:156 151:182
152:474 153:176 154:17 155:433 156:220 157:382
158:191 159:622 160:342 161:268 162:371 163:191
164:658 165:415 166:586 167:477 168:911 169:126
170:889 171:145 172:5 173:1726 174:624 175:437
176:555 177:912 178:1537 180:1276 181:98 182:1022
183:244 184:533 185:1 186:1916 187:1089 188:1357
189:1612 190:5758 192:6001 193:5495 194:4507 195:3432
196:1213 197:170 198:3670 199:4838 200:5914 201:1981
202:8691 203:8639 204:4334 205:2535 206:2803 207:2800
208:4035 209:3619 210:2778 211:1555 212:1965 213:1840
214:850 215:81 216:5115 217:1566 218:551 219:317
220:1238 221:568 222:335 223:353
End of report
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