The Border Gateway Protocol (BGP) is the protocol backing the core routing decisions on the Internet. It maintains a table of IP networks or 'prefixes' which designate network reachability among autonomous systems (AS). It is described as a path vector protocol. BGP does not use traditional Interior Gateway Protocol (IGP) metrics, but makes routing decisions based on path, network policies and/or rulesets. For this reason, it is more appropriately termed a reachability protocol rather than routing protocol.

Friday, November 15, 2013

[bgp-stats] Routing Table Report - Brisbane view

* BGP Routing Table Analysis Reports *
Routing Table Report 05:00 +10GMT Sat 16 Nov, 2013

Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/au/

Analysis Summary
----------------

BGP routing table entries examined: 468231
Prefixes after maximum aggregation: 187998
Deaggregation factor: 2.49
Unique aggregates announced to Internet: 234256
Total ASes present in the Internet Routing Table: 45339
Prefixes per ASN: 10.33
Origin-only ASes present in the Internet Routing Table: 35418
Origin ASes announcing only one prefix: 16309
Transit ASes present in the Internet Routing Table: 5769
Transit-only ASes present in the Internet Routing Table: 147
Average AS path length visible in the Internet Routing Table: 4.8
Max AS path length visible: 30
Max AS path prepend of ASN ( 59482) 25
Prefixes from unregistered ASNs in the Routing Table: 1946
Unregistered ASNs in the Routing Table: 415
Number of 32-bit ASNs allocated by the RIRs: 5358
Number of 32-bit ASNs visible in the Routing Table: 4152
Prefixes from 32-bit ASNs in the Routing Table: 12983
Special use prefixes present in the Routing Table: 1
Prefixes being announced from unallocated address space: 1080
Number of addresses announced to Internet: 2654914108
Equivalent to 158 /8s, 62 /16s and 198 /24s
Percentage of available address space announced: 71.7
Percentage of allocated address space announced: 71.7
Percentage of available address space allocated: 100.0
Percentage of address space in use by end-sites: 95.2
Total number of prefixes smaller than registry allocations: 162840

APNIC Region Analysis Summary
-----------------------------

Prefixes being announced by APNIC Region ASes: 109393
Total APNIC prefixes after maximum aggregation: 33256
APNIC Deaggregation factor: 3.29
Prefixes being announced from the APNIC address blocks: 111619
Unique aggregates announced from the APNIC address blocks: 47476
APNIC Region origin ASes present in the Internet Routing Table: 4846
APNIC Prefixes per ASN: 23.03
APNIC Region origin ASes announcing only one prefix: 1231
APNIC Region transit ASes present in the Internet Routing Table: 819
Average APNIC Region AS path length visible: 4.5
Max APNIC Region AS path length visible: 29
Number of APNIC region 32-bit ASNs visible in the Routing Table: 742
Number of APNIC addresses announced to Internet: 729967676
Equivalent to 43 /8s, 130 /16s and 108 /24s
Percentage of available APNIC address space announced: 85.3

APNIC AS Blocks 4608-4864, 7467-7722, 9216-10239, 17408-18431
(pre-ERX allocations) 23552-24575, 37888-38911, 45056-46079, 55296-56319,
58368-59391, 63488-63999, 131072-133631
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: 161870
Total ARIN prefixes after maximum aggregation: 81296
ARIN Deaggregation factor: 1.99
Prefixes being announced from the ARIN address blocks: 162722
Unique aggregates announced from the ARIN address blocks: 76013
ARIN Region origin ASes present in the Internet Routing Table: 15878
ARIN Prefixes per ASN: 10.25
ARIN Region origin ASes announcing only one prefix: 6013
ARIN Region transit ASes present in the Internet Routing Table: 1618
Average ARIN Region AS path length visible: 4.6
Max ARIN Region AS path length visible: 23
Number of ARIN region 32-bit ASNs visible in the Routing Table: 35
Number of ARIN addresses announced to Internet: 1073338368
Equivalent to 63 /8s, 249 /16s and 216 /24s
Percentage of available ARIN address space announced: 56.8

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, 62464-63487, 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: 118966
Total RIPE prefixes after maximum aggregation: 60896
RIPE Deaggregation factor: 1.95
Prefixes being announced from the RIPE address blocks: 122720
Unique aggregates announced from the RIPE address blocks: 78831
RIPE Region origin ASes present in the Internet Routing Table: 17498
RIPE Prefixes per ASN: 7.01
RIPE Region origin ASes announcing only one prefix: 8306
RIPE Region transit ASes present in the Internet Routing Table: 2755
Average RIPE Region AS path length visible: 5.2
Max RIPE Region AS path length visible: 30
Number of RIPE region 32-bit ASNs visible in the Routing Table: 2478
Number of RIPE addresses announced to Internet: 656721152
Equivalent to 39 /8s, 36 /16s and 197 /24s
Percentage of available RIPE address space announced: 95.5

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, 61952-62463, 196608-200191
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: 52547
Total LACNIC prefixes after maximum aggregation: 9796
LACNIC Deaggregation factor: 5.36
Prefixes being announced from the LACNIC address blocks: 57698
Unique aggregates announced from the LACNIC address blocks: 27022
LACNIC Region origin ASes present in the Internet Routing Table: 2032
LACNIC Prefixes per ASN: 28.39
LACNIC Region origin ASes announcing only one prefix: 557
LACNIC Region transit ASes present in the Internet Routing Table: 382
Average LACNIC Region AS path length visible: 5.4
Max LACNIC Region AS path length visible: 29
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 891
Number of LACNIC addresses announced to Internet: 143010048
Equivalent to 8 /8s, 134 /16s and 41 /24s
Percentage of available LACNIC address space announced: 85.2

LACNIC AS Blocks 26592-26623, 27648-28671, 52224-53247,
61440-61951, 262144-263679 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: 11769
Total AfriNIC prefixes after maximum aggregation: 2603
AfriNIC Deaggregation factor: 4.52
Prefixes being announced from the AfriNIC address blocks: 12392
Unique aggregates announced from the AfriNIC address blocks: 4046
AfriNIC Region origin ASes present in the Internet Routing Table: 683
AfriNIC Prefixes per ASN: 18.14
AfriNIC Region origin ASes announcing only one prefix: 202
AfriNIC Region transit ASes present in the Internet Routing Table: 134
Average AfriNIC Region AS path length visible: 5.0
Max AfriNIC Region AS path length visible: 25
Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 6
Number of AfriNIC addresses announced to Internet: 48082176
Equivalent to 2 /8s, 221 /16s and 173 /24s
Percentage of available AfriNIC address space announced: 47.8

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
17974 2712 902 88 PT TELEKOMUNIKASI INDONESIA
4766 2136 11550 641 Korea Telecom (KIX)
7545 2106 319 110 TPG Internet Pty Ltd
4755 1789 392 190 TATA Communications formerly
9829 1543 1245 45 BSNL National Internet Backbo
9583 1242 94 508 Sify Limited
9498 1215 309 74 BHARTI Airtel Ltd.
7552 1163 1080 13 Vietel Corporation
24560 1096 380 163 Bharti Airtel Ltd., Telemedia
4808 1041 1950 303 CNCGROUP IP network: China169

Complete listing at http://thyme.rand.apnic.net/au/data-ASnet-APNIC

ARIN Region per AS prefix count summary
---------------------------------------

ASN No of nets /20 equiv MaxAgg Description
6389 3051 3688 55 BellSouth.net Inc.
22773 2201 2939 139 Cox Communications, Inc.
18566 2056 379 178 MegaPath Corporation
1785 2039 685 130 PaeTec Communications, Inc.
20115 1681 1653 606 Charter Communications
4323 1646 1114 418 Time Warner Telecom
701 1502 11146 780 MCI Communications Services,
30036 1382 311 583 Mediacom Communications Corp
7018 1331 17778 870 AT&T WorldNet Services
6983 1293 755 578 ITC^Deltacom

Complete listing at http://thyme.rand.apnic.net/au/data-ASnet-ARIN

RIPE Region per AS prefix count summary
---------------------------------------

ASN No of nets /20 equiv MaxAgg Description
8402 1923 544 17 OJSC "Vimpelcom"
34984 1363 244 223 TELLCOM ILETISIM HIZMETLERI A
20940 1142 422 864 Akamai Technologies European
31148 1005 45 19 FreeNet ISP
13188 894 99 48 TOV "Bank-Inform"
6849 861 356 30 JSC UKRTELECOM,
8551 787 370 41 Bezeq International
6830 778 2329 430 UPC Distribution Services
12479 680 798 55 Uni2 Autonomous System
35228 545 246 16 Avatar Broadband Limited

Complete listing at http://thyme.rand.apnic.net/au/data-ASnet-RIPE

LACNIC Region per AS prefix count summary
-----------------------------------------

ASN No of nets /20 equiv MaxAgg Description
28573 3423 1793 87 NET Servicos de Comunicao S.A
10620 2666 432 219 Telmex Colombia S.A.
7303 1728 1150 231 Telecom Argentina Stet-France
18881 1621 908 20 Global Village Telecom
8151 1346 2851 409 UniNet S.A. de C.V.
11830 866 364 15 Instituto Costarricense de El
27947 820 94 92 Telconet S.A
6147 813 373 27 Telefonica Del Peru
6503 789 434 63 AVANTEL, S.A.
7738 780 1498 36 Telecomunicacoes da Bahia S.A

Complete listing at http://thyme.rand.apnic.net/au/data-ASnet-LACNIC

AfriNIC Region per AS prefix count summary
------------------------------------------

ASN No of nets /20 equiv MaxAgg Description
36998 1864 112 5 Sudanese Mobile Telephone (ZA
24863 887 338 26 LINKdotNET AS number
6713 554 633 26 Itissalat Al-MAGHRIB
8452 419 956 9 TEDATA
24835 297 144 9 RAYA Telecom - Egypt
3741 256 921 214 The Internet Solution
36992 229 501 29 Etisalat MISR
29571 224 17 12 Ci Telecom Autonomous system
15706 221 32 6 Sudatel Internet Exchange Aut
29975 192 668 21 Vodacom

Complete listing at http://thyme.rand.apnic.net/au/data-ASnet-AFRINIC

Global Per AS prefix count summary
----------------------------------

ASN No of nets /20 equiv MaxAgg Description
28573 3423 1793 87 NET Servicos de Comunicao S.A
6389 3051 3688 55 BellSouth.net Inc.
17974 2712 902 88 PT TELEKOMUNIKASI INDONESIA
10620 2666 432 219 Telmex Colombia S.A.
22773 2201 2939 139 Cox Communications, Inc.
4766 2136 11550 641 Korea Telecom (KIX)
7545 2106 319 110 TPG Internet Pty Ltd
18566 2056 379 178 MegaPath Corporation
1785 2039 685 130 PaeTec Communications, Inc.
8402 1923 544 17 OJSC "Vimpelcom"

Complete listing at http://thyme.rand.apnic.net/au/data-ASnet

Global Per AS Maximum Aggr summary
----------------------------------

ASN No of nets Net Savings Description
6389 3051 2996 BellSouth.net Inc.
17974 2712 2624 PT TELEKOMUNIKASI INDONESIA
10620 2666 2447 Telmex Colombia S.A.
22773 2201 2062 Cox Communications, Inc.
7545 2106 1996 TPG Internet Pty Ltd
1785 2039 1909 PaeTec Communications, Inc.
8402 1923 1906 OJSC "Vimpelcom"
18566 2056 1878 MegaPath Corporation
36998 1864 1859 Sudanese Mobile Telephone (ZA
18881 1621 1601 Global Village Telecom

Complete listing at http://thyme.rand.apnic.net/au/data-CIDRnet

List of Unregistered Origin ASNs (Global)
-----------------------------------------

Bad AS Designation Network Transit AS Description
65010 PRIVATE 1.38.8.0/24 38266 Hutchison Essar Ltd.
65010 PRIVATE 1.38.9.0/24 38266 Hutchison Essar Ltd.
65010 PRIVATE 1.38.11.0/24 38266 Hutchison Essar Ltd.
65010 PRIVATE 1.38.32.0/19 38266 Hutchison Essar Ltd.
65010 PRIVATE 1.38.160.0/19 38266 Hutchison Essar Ltd.
65010 PRIVATE 1.38.192.0/20 38266 Hutchison Essar Ltd.
65010 PRIVATE 1.38.224.0/20 38266 Hutchison Essar Ltd.
65010 PRIVATE 1.38.240.0/21 38266 Hutchison Essar Ltd.
65514 PRIVATE 5.102.224.0/19 47956 XFONE COMMUNICATION
62828 UNALLOCATED 8.21.130.0/24 4323 Time Warner Telecom

Complete listing at http://thyme.rand.apnic.net/au/data-badAS

Prefixes from private and non-routed address space (Global)
-----------------------------------------------------------

Prefix Origin AS Description
100.100.0.0/24 4847 China Networks Inter-Exchange

Complete listing at http://thyme.rand.apnic.net/au/data-dsua

Advertised Unallocated Addresses
--------------------------------

Network Origin AS Description
23.90.128.0/18 27418 OUTOFWALL INC.
23.91.0.0/19 40676 Psychz Networks
23.91.4.0/24 40676 Psychz Networks
23.91.14.0/24 40676 Psychz Networks
23.91.32.0/19 36315 Servpac Inc.
23.91.80.0/20 21560 Capital Technology Services G
23.91.96.0/20 37958 ChinaCache Networks ASN
23.91.112.0/21 32475 MidPhase Inc.
23.91.160.0/19 36493 3757277 Canada Inc. (oa 295.c
23.91.160.0/22 36493 3757277 Canada Inc. (oa 295.c

Complete listing at http://thyme.rand.apnic.net/au/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 /8:16 /9:11 /10:31 /11:92 /12:254
/13:474 /14:926 /15:1633 /16:12850 /17:6754 /18:11183
/19:23022 /20:32782 /21:35565 /22:49867 /23:43627 /24:248918
/25:44 /26:34 /27:51 /28:37 /29:29 /30:31
/31:0 /32:0

Advertised prefixes smaller than registry allocations
-----------------------------------------------------

ASN No of nets Total ann. Description
18566 2010 2056 MegaPath Corporation
36998 1829 1864 Sudanese Mobile Telephone (ZA
6389 1705 3051 BellSouth.net Inc.
8402 1587 1923 OJSC "Vimpelcom"
22773 1460 2201 Cox Communications, Inc.
30036 1228 1382 Mediacom Communications Corp
11492 1193 1231 Cable One
1785 1086 2039 PaeTec Communications, Inc.
6983 1034 1293 ITC^Deltacom
22561 965 1242 Digital Teleport, Inc

Complete listing at http://thyme.rand.apnic.net/au/data-sXXas-nos

Number of /24s announced per /8 block (Global)
----------------------------------------------

1:897 2:835 3:3 4:17 5:1024 6:21
8:618 12:1882 13:3 14:870 15:11 16:3
17:17 18:19 20:21 23:561 24:1745 27:1656
31:1443 32:44 33:2 34:5 36:86 37:1921
38:914 39:5 40:182 41:3257 42:272 44:14
46:2021 47:10 49:689 50:834 52:12 54:43
55:7 56:4 57:26 58:1110 59:573 60:378
61:1451 62:1240 63:1978 64:4325 65:2342 66:4147
67:2116 68:1108 69:3285 70:875 71:488 72:2042
74:2561 75:326 76:307 77:1159 78:1060 79:671
80:1296 81:1039 82:648 83:660 84:585 85:1256
86:383 87:1027 88:556 89:1558 90:150 91:5659
92:622 93:1609 94:2067 95:1630 96:512 97:350
98:1038 99:41 100:32 101:396 103:3604 105:527
106:140 107:217 108:534 109:1947 110:970 111:1110
112:588 113:807 114:740 115:1041 116:1013 117:805
118:1179 119:1259 120:363 121:750 122:1818 123:1265
124:1359 125:1460 128:645 129:219 130:315 131:653
132:358 133:158 134:548 135:72 136:282 137:245
138:351 139:173 140:170 141:330 142:533 143:415
144:498 145:90 146:518 147:400 148:715 149:368
150:140 151:653 152:411 153:205 154:53 155:492
156:291 157:370 158:280 159:694 160:361 161:456
162:855 163:202 164:631 165:582 166:260 167:634
168:1037 169:124 170:1117 171:185 172:27 173:1589
174:696 175:509 176:1301 177:2472 178:1972 179:302
180:1612 181:873 182:1373 183:466 184:659 185:1024
186:2605 187:1467 188:1867 189:1262 190:7287 192:6984
193:5419 194:4040 195:3364 196:1339 197:1040 198:4710
199:5453 200:6045 201:2516 202:8866 203:8897 204:4465
205:2633 206:2748 207:2767 208:3999 209:3645 210:2950
211:1562 212:2161 213:1971 214:902 215:91 216:5398
217:1690 218:626 219:318 220:1275 221:578 222:326
223:542

End of report
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