Routing Table Report 00:00 GMT Fri 30 Mar, 2012
NB: RouteViews data includes iBGP information from some ASNs.
Treat the information provided below appropriately.
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/rviews/
Analysis Summary
----------------
BGP routing table entries examined: 407276
Prefixes after maximum aggregation: 172965
Deaggregation factor: 2.35
Unique aggregates announced to Internet: 195896
Total ASes present in the Internet Routing Table: 40572
Prefixes per ASN: 10.04
Origin-only ASes present in the Internet Routing Table: 32935
Origin ASes announcing only one prefix: 15509
Transit ASes present in the Internet Routing Table: 5470
Transit-only ASes present in the Internet Routing Table: 144
Average AS path length visible in the Internet Routing Table: 4.5
Max AS path length visible: 28
Max AS path prepend of ASN (19202) 25
Prefixes from unregistered ASNs in the Routing Table: 5954
Unregistered ASNs in the Routing Table: 283
Number of 32-bit ASNs allocated by the RIRs: 2341
Number of 32-bit ASNs visible in the Routing Table: 2167
Prefixes from 32-bit ASNs in the Routing Table: 5311
Special use prefixes present in the Routing Table: 88
Prefixes being announced from unallocated address space: 1237
Number of addresses announced to Internet: 2531863381
Equivalent to 150 /8s, 233 /16s and 43 /24s
Percentage of available address space announced: 68.3
Percentage of allocated address space announced: 68.3
Percentage of available address space allocated: 100.0
Percentage of address space in use by end-sites: 92.1
Total number of prefixes smaller than registry allocations: 171569
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 96920
Total APNIC prefixes after maximum aggregation: 31016
APNIC Deaggregation factor: 3.12
Prefixes being announced from the APNIC address blocks: 93417
Unique aggregates announced from the APNIC address blocks: 39211
APNIC Region origin ASes present in the Internet Routing Table: 4661
APNIC Prefixes per ASN: 20.04
APNIC Region origin ASes announcing only one prefix: 1252
APNIC Region transit ASes present in the Internet Routing Table: 741
Average APNIC Region AS path length visible: 4.8
Max APNIC Region AS path length visible: 23
Number of APNIC region 32-bit ASNs visible in the Routing Table: 172
Number of APNIC addresses announced to Internet: 642381312
Equivalent to 38 /8s, 73 /16s and 246 /24s
Percentage of available APNIC address space announced: 81.5
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: 152030
Total ARIN prefixes after maximum aggregation: 78029
ARIN Deaggregation factor: 1.95
Prefixes being announced from the ARIN address blocks: 123201
Unique aggregates announced from the ARIN address blocks: 49980
ARIN Region origin ASes present in the Internet Routing Table: 14968
ARIN Prefixes per ASN: 8.23
ARIN Region origin ASes announcing only one prefix: 5701
ARIN Region transit ASes present in the Internet Routing Table: 1574
Average ARIN Region AS path length visible: 4.0
Max ARIN Region AS path length visible: 28
Number of ARIN region 32-bit ASNs visible in the Routing Table: 16
Number of ARIN addresses announced to Internet: 805314560
Equivalent to 48 /8s, 0 /16s and 32 /24s
Percentage of available ARIN address space announced: 64.0
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: 102838
Total RIPE prefixes after maximum aggregation: 53393
RIPE Deaggregation factor: 1.93
Prefixes being announced from the RIPE address blocks: 93303
Unique aggregates announced from the RIPE address blocks: 57226
RIPE Region origin ASes present in the Internet Routing Table: 16362
RIPE Prefixes per ASN: 5.70
RIPE Region origin ASes announcing only one prefix: 7958
RIPE Region transit ASes present in the Internet Routing Table: 2651
Average RIPE Region AS path length visible: 4.8
Max RIPE Region AS path length visible: 28
Number of RIPE region 32-bit ASNs visible in the Routing Table: 1468
Number of RIPE addresses announced to Internet: 502445964
Equivalent to 29 /8s, 242 /16s and 183 /24s
Percentage of available RIPE address space announced: 80.9
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: 40760
Total LACNIC prefixes after maximum aggregation: 8155
LACNIC Deaggregation factor: 5.00
Prefixes being announced from the LACNIC address blocks: 40281
Unique aggregates announced from the LACNIC address blocks: 19715
LACNIC Region origin ASes present in the Internet Routing Table: 1569
LACNIC Prefixes per ASN: 25.67
LACNIC Region origin ASes announcing only one prefix: 435
LACNIC Region transit ASes present in the Internet Routing Table: 299
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: 506
Number of LACNIC addresses announced to Internet: 98750984
Equivalent to 5 /8s, 226 /16s and 210 /24s
Percentage of available LACNIC address space announced: 65.4
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: 8935
Total AfriNIC prefixes after maximum aggregation: 2136
AfriNIC Deaggregation factor: 4.18
Prefixes being announced from the AfriNIC address blocks: 6978
Unique aggregates announced from the AfriNIC address blocks: 2161
AfriNIC Region origin ASes present in the Internet Routing Table: 527
AfriNIC Prefixes per ASN: 13.24
AfriNIC Region origin ASes announcing only one prefix: 163
AfriNIC Region transit ASes present in the Internet Routing Table: 117
Average AfriNIC Region AS path length visible: 4.5
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: 31518208
Equivalent to 1 /8s, 224 /16s and 238 /24s
Percentage of available AfriNIC address space announced: 47.0
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 1925 11101 676 Korea Telecom (KIX)
17974 1787 503 61 PT TELEKOMUNIKASI INDONESIA
7545 1653 301 89 TPG Internet Pty Ltd
4755 1575 386 158 Videsh Sanchar Nigam Ltd. Aut
9583 1240 95 542 Sify Limited
9829 1209 1025 29 BSNL National Internet Backbo
7552 1177 1062 11 Vietel Corporation
24560 1021 385 167 Bharti Airtel Ltd.
18101 949 131 159 Reliance Infocom Ltd Internet
4808 929 1875 272 CNCGROUP IP network: China169
Complete listing at http://thyme.rand.apnic.net/rviews/data-ASnet-APNIC
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
6389 3379 3807 196 bellsouth.net, inc.
7029 3376 990 155 Windstream Communications Inc
18566 2092 383 179 Covad Communications
1785 1885 680 128 AppliedTheory Corporation
20115 1634 1559 624 Charter Communications
4323 1589 1074 376 Time Warner Telecom
22773 1552 2910 111 Cox Communications, Inc.
30036 1415 256 745 Mediacom Communications Corp
7018 1279 13742 830 AT&T WorldNet Services
11492 1184 216 364 Cable One
Complete listing at http://thyme.rand.apnic.net/rviews/data-ASnet-ARIN
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
8402 1807 544 16 Corbina telecom
2118 1427 97 13 EUnet/RELCOM Autonomous Syste
286 1063 853 199 KPNQwest Backbone AS
31148 675 37 9 FreeNet ISP
34984 673 188 175 Tellcom Iletisim Hizmetleri
12479 655 658 57 Uni2 Autonomous System
6830 642 1943 413 UPC Distribution Services
20940 633 205 495 Akamai Technologies European
8551 597 360 81 Bezeq International
9116 541 326 32 Goldenlines main autonomous s
Complete listing at http://thyme.rand.apnic.net/rviews/data-ASnet-RIPE
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
10620 1811 329 133 TVCABLE BOGOTA
28573 1744 1105 60 Types of queries are: POCs, o
8151 1527 3000 327 Uninet S.A. de C.V.
6503 1357 418 66 AVANTEL, S.A.
7303 1351 826 190 Telecom Argentina Stet-France
26615 901 696 31 Types of queries are: POCs, o
27947 689 74 100 Telconet S.A
11172 636 91 73 Alestra
22047 584 326 15 Types of queries are: POCs, o
3816 567 241 105 COLOMBIA TELECOMUNICACIONES S
Complete listing at http://thyme.rand.apnic.net/rviews/data-ASnet-LACNIC
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
8452 1292 958 13 TEDATA
24863 846 274 33 LINKdotNET AS number
6713 490 649 18 Itissalat Al-MAGHRIB
3741 272 924 229 The Internet Solution
33776 208 12 21 Starcomms Nigeria Limited
12258 197 28 62 YEBO-AS
24835 178 80 8 RAYA Telecom - Egypt
15706 168 32 6 Sudatel Internet Exchange Aut
16637 161 664 84 Johnnic e-Ventures
29571 159 15 16 Ci Telecom Autonomous system
Complete listing at http://thyme.rand.apnic.net/rviews/data-ASnet-AFRINIC
Global Per AS prefix count summary
----------------------------------
ASN No of nets /20 equiv MaxAgg Description
6389 3379 3807 196 bellsouth.net, inc.
7029 3376 990 155 Windstream Communications Inc
18566 2092 383 179 Covad Communications
4766 1925 11101 676 Korea Telecom (KIX)
1785 1885 680 128 AppliedTheory Corporation
10620 1811 329 133 TVCABLE BOGOTA
8402 1807 544 16 Corbina telecom
17974 1787 503 61 PT TELEKOMUNIKASI INDONESIA
28573 1744 1105 60 Types of queries are: POCs, o
7545 1653 301 89 TPG Internet Pty Ltd
Complete listing at http://thyme.rand.apnic.net/rviews/data-ASnet
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
7029 3376 3221 Windstream Communications Inc
18566 2092 1913 Covad Communications
8402 1807 1791 Corbina telecom
1785 1885 1757 AppliedTheory Corporation
17974 1787 1726 PT TELEKOMUNIKASI INDONESIA
28573 1744 1684 Types of queries are: POCs, o
10620 1811 1678 TVCABLE BOGOTA
7545 1653 1564 TPG Internet Pty Ltd
22773 1552 1441 Cox Communications, Inc.
4755 1575 1417 Videsh Sanchar Nigam Ltd. Aut
Complete listing at http://thyme.rand.apnic.net/rviews/data-CIDRnet
List of Unregistered Origin ASNs (Global)
-----------------------------------------
Bad AS Designation Network Transit AS Description
23456 UNALLOCATED 8.14.101.0/24 6461 AboveNet Communicati
54439 UNALLOCATED 8.25.174.0/24 17378 DBS International
15132 UNALLOCATED 12.9.150.0/24 7018 AT&T WorldNet Servic
32567 UNALLOCATED 12.14.170.0/24 7018 AT&T WorldNet Servic
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 12.45.103.0/24 209 Qwest
17300 UNALLOCATED 12.45.110.0/24 701 UUNET Technologies,
Complete listing at http://thyme.rand.apnic.net/rviews/data-badAS
Prefixes from private and non-routed address space (Global)
-----------------------------------------------------------
Prefix Origin AS Description
10.0.1.0/24 286 KPNQwest Backbone AS
10.29.245.1/32 286 KPNQwest Backbone AS
10.29.245.2/32 286 KPNQwest Backbone AS
10.29.245.15/32 286 KPNQwest Backbone AS
10.29.245.19/32 286 KPNQwest Backbone AS
10.29.245.20/32 286 KPNQwest Backbone AS
10.29.245.21/32 286 KPNQwest Backbone AS
10.29.245.22/32 286 KPNQwest Backbone AS
10.29.245.25/32 286 KPNQwest Backbone AS
10.29.245.26/32 286 KPNQwest Backbone AS
Complete listing at http://thyme.rand.apnic.net/rviews/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
23.27.0.0/20 54500 EGIHosting
23.27.16.0/20 54500 EGIHosting
Complete listing at http://thyme.rand.apnic.net/rviews/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 /11:81 /12:235
/13:458 /14:837 /15:1512 /16:12339 /17:6543 /18:10872
/19:21124 /20:29918 /21:30119 /22:40657 /23:38011 /24:212894
/25:70 /26:76 /27:110 /28:280 /29:101 /30:499
/31:20 /32:461
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
7029 3036 3376 Windstream Communications Inc
6389 2096 3379 bellsouth.net, inc.
18566 2041 2092 Covad Communications
8402 1784 1807 Corbina telecom
10620 1704 1811 TVCABLE BOGOTA
30036 1359 1415 Mediacom Communications Corp
11492 1147 1184 Cable One
6503 1127 1357 AVANTEL, S.A.
8452 1100 1292 TEDATA
1785 1064 1885 AppliedTheory Corporation
Complete listing at http://thyme.rand.apnic.net/rviews/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:536 2:758 4:18 6:3 8:395 10:1
12:1982 13:1 14:607 15:12 16:3 17:7
20:8 23:159 24:1764 27:1259 31:964 32:120
33:2 34:2 36:8 37:306 38:794 39:4
40:120 41:3097 42:133 44:3 46:1467 47:3
49:347 50:539 52:12 54:6 55:11 56:3
57:40 58:966 59:496 60:278 61:1215 62:983
63:2007 64:4218 65:2276 66:4529 67:2054 68:1331
69:3298 70:948 71:466 72:1852 73:1 74:2651
75:506 76:331 77:963 78:1006 79:511 80:1219
81:903 82:676 83:548 84:519 85:1208 86:416
87:919 88:346 89:1632 90:297 91:4668 92:521
93:1412 94:1471 95:1157 96:378 97:315 98:831
99:37 100:6 101:170 103:931 106:66 107:175
108:218 109:1278 110:766 111:902 112:447 113:593
114:649 115:794 116:919 117:724 118:922 119:1210
120:344 121:720 122:1665 123:1110 124:1369 125:1264
128:555 129:194 130:258 131:597 132:173 133:21
134:244 135:63 136:213 137:176 138:351 139:157
140:492 141:244 142:387 143:407 144:505 145:66
146:486 147:257 148:791 149:298 150:157 151:176
152:460 153:171 154:7 155:448 156:215 157:381
158:171 159:531 160:343 161:249 162:343 163:189
164:555 165:406 166:562 167:463 168:817 169:148
170:844 171:125 172:4 173:1739 174:602 175:449
176:455 177:623 178:1313 180:1241 181:74 182:770
183:277 184:448 185:1 186:2151 187:998 188:1158
189:1690 190:5532 192:6028 193:5631 194:4653 195:3644
196:1297 197:118 198:3634 199:4489 200:5824 201:1902
202:8471 203:8618 204:4350 205:2471 206:2761 207:2800
208:4076 209:3642 210:2784 211:1480 212:2038 213:1918
214:876 215:109 216:5097 217:1532 218:546 219:339
220:1236 221:556 222:330 223:328
End of report
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