Routing Table Report 08:00 +10GMT Tue 03 Apr, 2012
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/london/
Analysis Summary
----------------
BGP routing table entries examined: 397137
Prefixes after maximum aggregation: 169695
Deaggregation factor: 2.34
Unique aggregates announced to Internet: 195789
Total ASes present in the Internet Routing Table: 38231
Prefixes per ASN: 10.39
Origin-only ASes present in the Internet Routing Table: 32978
Origin ASes announcing only one prefix: 15494
Transit ASes present in the Internet Routing Table: 5253
Transit-only ASes present in the Internet Routing Table: 122
Average AS path length visible in the Internet Routing Table: 3.6
Max AS path length visible: 24
Max AS path prepend of ASN (36992) 22
Prefixes from unregistered ASNs in the Routing Table: 1371
Unregistered ASNs in the Routing Table: 366
Number of 32-bit ASNs allocated by the RIRs: 2342
Number of 32-bit ASNs visible in the Routing Table: 0
Prefixes from 32-bit ASNs in the Routing Table: 5293
Special use prefixes present in the Routing Table: 8
Prefixes being announced from unallocated address space: 1296
Number of addresses announced to Internet: 2549678336
Equivalent to 151 /8s, 249 /16s and 1 /24s
Percentage of available address space announced: 68.8
Percentage of allocated address space announced: 68.8
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: 167247
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 93252
Total APNIC prefixes after maximum aggregation: 30710
APNIC Deaggregation factor: 3.04
Prefixes being announced from the APNIC address blocks: 90646
Unique aggregates announced from the APNIC address blocks: 39261
APNIC Region origin ASes present in the Internet Routing Table: 4630
APNIC Prefixes per ASN: 19.58
APNIC Region origin ASes announcing only one prefix: 1262
APNIC Region transit ASes present in the Internet Routing Table: 710
Average APNIC Region AS path length visible: 4.0
Max APNIC Region AS path length visible: 16
Number of APNIC region 32-bit ASNs visible in the Routing Table: 0
Number of APNIC addresses announced to Internet: 642298880
Equivalent to 38 /8s, 72 /16s and 180 /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: 147930
Total ARIN prefixes after maximum aggregation: 75342
ARIN Deaggregation factor: 1.96
Prefixes being announced from the ARIN address blocks: 119577
Unique aggregates announced from the ARIN address blocks: 49905
ARIN Region origin ASes present in the Internet Routing Table: 14877
ARIN Prefixes per ASN: 8.04
ARIN Region origin ASes announcing only one prefix: 5678
ARIN Region transit ASes present in the Internet Routing Table: 1500
Average ARIN Region AS path length visible: 3.3
Max ARIN Region AS path length visible: 16
Number of ARIN region 32-bit ASNs visible in the Routing Table: 0
Number of ARIN addresses announced to Internet: 805215744
Equivalent to 47 /8s, 254 /16s and 158 /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: 101194
Total RIPE prefixes after maximum aggregation: 53194
RIPE Deaggregation factor: 1.90
Prefixes being announced from the RIPE address blocks: 92486
Unique aggregates announced from the RIPE address blocks: 57208
RIPE Region origin ASes present in the Internet Routing Table: 16327
RIPE Prefixes per ASN: 5.66
RIPE Region origin ASes announcing only one prefix: 7954
RIPE Region transit ASes present in the Internet Routing Table: 2577
Average RIPE Region AS path length visible: 3.5
Max RIPE Region AS path length visible: 24
Number of RIPE region 32-bit ASNs visible in the Routing Table: 0
Number of RIPE addresses announced to Internet: 502189568
Equivalent to 29 /8s, 238 /16s and 206 /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: 39605
Total LACNIC prefixes after maximum aggregation: 8072
LACNIC Deaggregation factor: 4.91
Prefixes being announced from the LACNIC address blocks: 39353
Unique aggregates announced from the LACNIC address blocks: 19754
LACNIC Region origin ASes present in the Internet Routing Table: 1560
LACNIC Prefixes per ASN: 25.23
LACNIC Region origin ASes announcing only one prefix: 440
LACNIC Region transit ASes present in the Internet Routing Table: 286
Average LACNIC Region AS path length visible: 3.9
Max LACNIC Region AS path length visible: 17
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 0
Number of LACNIC addresses announced to Internet: 98646528
Equivalent to 5 /8s, 225 /16s and 58 /24s
Percentage of available LACNIC address space announced: 65.3
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: 8814
Total AfriNIC prefixes after maximum aggregation: 2117
AfriNIC Deaggregation factor: 4.16
Prefixes being announced from the AfriNIC address blocks: 6902
Unique aggregates announced from the AfriNIC address blocks: 2159
AfriNIC Region origin ASes present in the Internet Routing Table: 522
AfriNIC Prefixes per ASN: 13.22
AfriNIC Region origin ASes announcing only one prefix: 160
AfriNIC Region transit ASes present in the Internet Routing Table: 114
Average AfriNIC Region AS path length visible: 3.5
Max AfriNIC Region AS path length visible: 24
Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 0
Number of AfriNIC addresses announced to Internet: 31518720
Equivalent to 1 /8s, 224 /16s and 240 /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 1931 11106 680 Korea Telecom (KIX)
17974 1703 502 62 PT Telekomunikasi Indonesia
7545 1654 301 89 TPG Internet Pty Ltd
4755 1556 385 157 TATA Communications formerly
9583 1236 94 538 Sify Limited
9829 1189 1025 29 National Internet Backbone
7552 1101 1062 11 Vietel Corporation
24560 1019 385 167 Bharti Airtel Ltd., Telemedia
4808 987 1947 284 CNCGROUP IP network China169
18101 952 131 160 Reliance Infocom Ltd Internet
Complete listing at http://thyme.rand.apnic.net/london/data-ASnet-APNIC
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
7029 3409 1016 168 Windstream Communications Inc
6389 3379 3807 197 BellSouth.net Inc.
18566 2093 383 179 Covad Communications Co.
1785 1892 680 128 PaeTec Communications, Inc.
20115 1619 1560 623 Charter Communications
4323 1598 1075 381 tw telecom holdings, inc.
22773 1551 2910 111 Cox Communications Inc.
30036 1416 256 746 Mediacom Communications Corp
7018 1287 9807 836 AT&T Services, Inc.
11492 1184 216 364 CABLE ONE, INC.
Complete listing at http://thyme.rand.apnic.net/london/data-ASnet-ARIN
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
8402 1715 544 16 Corbina telecom
2118 1394 97 14 EUnet/RELCOM Autonomous Syste
31148 677 37 9 FreeNet ISP
34984 674 188 174 BILISIM TELEKOM
12479 652 658 57 France Telecom Espana SA
6830 641 1943 412 UPC Broadband
20940 633 205 498 Akamai Technologies European
9116 541 326 32 Goldenlines main autonomous s
3320 532 8442 398 Deutsche Telekom AG
8551 504 360 81 Bezeq International
Complete listing at http://thyme.rand.apnic.net/london/data-ASnet-RIPE
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
10620 1795 327 163 Types of queries are: POCs, o
28573 1743 1105 60 Types of queries are: POCs, o
6503 1492 418 66 Axtel, S.A.B. de C.V.
7303 1353 827 189 Telecom Argentina S.A.
8151 1346 2999 343 Uninet S.A. de C.V.
26615 902 700 28 Tim Celular S.A.
27947 665 74 100 Telconet S.A
11172 638 107 74 Alestra, S. de R.L. de C.V.
22047 584 326 15 Types of queries are: POCs, o
3816 571 242 100 Types of queries are: POCs, o
Complete listing at http://thyme.rand.apnic.net/london/data-ASnet-LACNIC
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
8452 1295 958 13 TEDATA
24863 846 274 32 LINKdotNET AS number
6713 493 649 18 Itissalat Al-MAGHRIB
3741 272 924 229 The Internet Solution
12258 197 28 62 Vodacom Internet Company
24835 178 80 8 RAYA Telecom - Egypt
33776 169 12 21 Starcomms Nigeria Limited
15706 168 32 6 Sudatel Internet Exchange Aut
16637 161 664 84 MTN Network Solutions
29571 159 15 16 Ci Telecom Autonomous system
Complete listing at http://thyme.rand.apnic.net/london/data-ASnet-AFRINIC
Global Per AS prefix count summary
----------------------------------
ASN No of nets /20 equiv MaxAgg Description
7029 3409 1016 168 Windstream Communications Inc
6389 3379 3807 197 BellSouth.net Inc.
18566 2093 383 179 Covad Communications Co.
4766 1931 11106 680 Korea Telecom (KIX)
1785 1892 680 128 PaeTec Communications, Inc.
10620 1795 327 163 Types of queries are: POCs, o
28573 1743 1105 60 Types of queries are: POCs, o
8402 1715 544 16 Corbina telecom
17974 1703 502 62 PT Telekomunikasi Indonesia
7545 1654 301 89 TPG Internet Pty Ltd
Complete listing at http://thyme.rand.apnic.net/london/data-ASnet
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
6389 3379 3182 BellSouth.net Inc.
18566 2093 1914 Covad Communications Co.
1785 1892 1764 PaeTec Communications, Inc.
8402 1715 1699 Corbina telecom
28573 1743 1683 Types of queries are: POCs, o
17974 1703 1641 PT Telekomunikasi Indonesia
10620 1795 1632 Types of queries are: POCs, o
7545 1654 1565 TPG Internet Pty Ltd
22773 1551 1440 Cox Communications Inc.
6503 1492 1426 Axtel, S.A.B. de C.V.
Complete listing at http://thyme.rand.apnic.net/london/data-CIDRnet
List of Unregistered Origin ASNs (Global)
-----------------------------------------
Bad AS Designation Network Transit AS Description
54439 UNALLOCATED 8.25.174.0/24 3356 Level 3 Communicatio
54470 UNALLOCATED 8.30.171.0/24 3356 Level 3 Communicatio
65333 PRIVATE 10.0.0.0/8 0 *
32805 UNALLOCATED 12.1.225.0/24 7018 AT&T Services, Inc.
15132 UNALLOCATED 12.9.150.0/24 7018 AT&T Services, Inc.
32567 UNALLOCATED 12.14.170.0/24 7018 AT&T Services, Inc.
16504 UNALLOCATED 12.18.155.0/24 30170 Optic Fusion
32567 UNALLOCATED 12.25.107.0/24 4323 tw telecom holdings,
30031 UNALLOCATED 12.27.122.0/24 7018 AT&T Services, Inc.
26095 UNALLOCATED 12.34.8.0/24 7018 AT&T Services, Inc.
Complete listing at http://thyme.rand.apnic.net/london/data-badAS
Prefixes from private and non-routed address space (Global)
-----------------------------------------------------------
Prefix Origin AS Description
10.0.0.0/8 65333 Internet Assigned Numbers Aut
128.0.0.0/21 12654 RIPE NCC RIS Project
128.0.24.0/24 12654 RIPE NCC RIS Project
169.254.0.0/16 65333 Internet Assigned Numbers Aut
172.16.0.0/12 65333 Internet Assigned Numbers Aut
192.0.2.0/24 65333 Internet Assigned Numbers Aut
192.168.0.0/16 0 *
198.18.0.0/15 65333 Internet Assigned Numbers Aut
Complete listing at http://thyme.rand.apnic.net/london/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/london/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 /8:20 /9:12 /10:28 /11:81 /12:236
/13:457 /14:831 /15:1482 /16:12132 /17:6260 /18:10384
/19:20570 /20:28574 /21:29419 /22:39842 /23:37214 /24:209040
/25:11 /26:21 /27:20 /28:154 /29:140 /30:69
/31:0 /32:140
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
7029 3054 3409 Windstream Communications Inc
6389 2095 3379 BellSouth.net Inc.
18566 2042 2093 Covad Communications Co.
8402 1692 1715 Corbina telecom
10620 1690 1795 Types of queries are: POCs, o
30036 1360 1416 Mediacom Communications Corp
6503 1254 1492 Axtel, S.A.B. de C.V.
11492 1147 1184 CABLE ONE, INC.
8452 1104 1295 TEDATA
1785 1067 1892 PaeTec Communications, Inc.
Complete listing at http://thyme.rand.apnic.net/london/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:530 2:697 4:14 6:3 8:394 12:1989
13:1 14:600 15:12 16:3 17:7 20:8
23:160 24:1753 27:1252 31:982 32:53 33:2
34:2 36:8 37:319 38:780 40:120 41:3035
42:129 44:3 46:1461 47:3 49:345 50:536
52:13 54:7 55:8 56:3 57:29 58:914
59:486 60:277 61:1091 62:973 63:1991 64:4148
65:2258 66:4481 67:2025 68:1143 69:3174 70:908
71:463 72:1816 74:2581 75:491 76:314 77:956
78:996 79:493 80:1208 81:892 82:670 83:547
84:524 85:1182 86:417 87:905 88:343 89:1630
90:297 91:4658 92:518 93:1384 94:1478 95:1157
96:373 97:316 98:826 99:37 100:7 101:164
103:913 106:65 107:180 108:201 109:1264 110:737
111:898 112:434 113:577 114:623 115:771 116:883
117:702 118:903 119:1167 120:331 121:669 122:1627
123:1101 124:1301 125:1260 128:524 129:185 130:250
131:592 132:165 133:21 134:232 135:62 136:210
137:174 138:352 139:144 140:468 141:243 142:368
143:394 144:509 145:66 146:478 147:242 148:742
149:295 150:149 151:176 152:460 153:171 154:6
155:445 156:212 157:335 158:176 159:451 160:341
161:230 162:340 163:179 164:567 165:390 166:561
167:463 168:811 169:126 170:844 171:125 172:4
173:1725 174:571 175:420 176:457 177:623 178:1308
180:1194 181:73 182:752 183:284 184:448 185:1
186:2161 187:1031 188:1188 189:1769 190:5409 192:5961
193:5608 194:4614 195:3584 196:1253 197:123 198:3567
199:4445 200:5699 201:1895 202:8221 203:8490 204:4264
205:2454 206:2661 207:2719 208:4042 209:3561 210:2681
211:1445 212:1997 213:1904 214:877 215:107 216:5050
217:1522 218:525 219:319 220:1227 221:537 222:298
223:318
End of report
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